./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh --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 8010433a2885bc09df7e6beec8fa2694aed6b40a08013ee4556c296a9d8c249c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:23:04,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:23:04,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:23:04,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:23:04,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:23:04,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:23:04,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:23:04,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:23:04,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:23:04,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:23:04,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:23:04,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:23:04,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:23:04,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:23:04,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:23:04,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:23:04,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:23:04,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:23:04,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:23:04,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:23:04,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:23:04,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:23:04,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:23:04,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:23:04,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:23:04,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:23:04,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:23:04,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:23:04,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:23:04,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:23:04,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:23:04,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:23:04,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:23:04,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:23:04,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:23:04,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:23:04,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:23:04,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:23:04,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:23:04,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:23:04,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:23:04,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 14:23:04,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:23:04,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:23:04,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:23:04,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:23:04,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:23:04,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:23:04,551 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:23:04,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:23:04,551 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:23:04,551 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:23:04,551 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:23:04,551 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:23:04,552 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:23:04,552 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:23:04,552 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:23:04,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:23:04,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:23:04,552 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:23:04,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:23:04,553 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:23:04,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:23:04,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:23:04,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:23:04,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:23:04,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:23:04,554 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:23:04,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:23:04,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:23:04,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:23:04,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:23:04,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:23:04,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:23:04,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:23:04,555 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:23:04,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:23:04,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:23:04,555 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:23:04,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:23:04,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:23:04,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:23:04,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8010433a2885bc09df7e6beec8fa2694aed6b40a08013ee4556c296a9d8c249c [2022-12-14 14:23:04,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:23:04,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:23:04,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:23:04,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:23:04,751 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:23:04,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i [2022-12-14 14:23:07,387 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:23:07,624 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:23:07,625 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_good.i [2022-12-14 14:23:07,643 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/data/d78b52947/f458d32e5dba404980fdc31a654f88d4/FLAG8c07ee0b3 [2022-12-14 14:23:07,657 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/data/d78b52947/f458d32e5dba404980fdc31a654f88d4 [2022-12-14 14:23:07,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:23:07,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:23:07,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:23:07,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:23:07,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:23:07,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:23:07" (1/1) ... [2022-12-14 14:23:07,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b013687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:07, skipping insertion in model container [2022-12-14 14:23:07,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:23:07" (1/1) ... [2022-12-14 14:23:07,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:23:07,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:23:07,968 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:23:08,286 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:23:08,291 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:23:08,293 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:23:08,295 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:23:08,296 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:23:08,321 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:23:08,324 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:23:08,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:23:08,333 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:23:08,348 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:23:08,385 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:23:08,386 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:23:08,387 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:23:08,390 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:23:08,391 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:23:08,397 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:23:08,398 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:23:08,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:23:08,519 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:23:08,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08 WrapperNode [2022-12-14 14:23:08,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:23:08,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:23:08,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:23:08,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:23:08,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,562 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 71 [2022-12-14 14:23:08,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:23:08,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:23:08,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:23:08,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:23:08,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,578 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:23:08,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:23:08,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:23:08,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:23:08,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (1/1) ... [2022-12-14 14:23:08,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:23:08,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:23:08,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:23:08,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:23:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 14:23:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 14:23:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 14:23:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 14:23:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 14:23:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:23:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:23:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:23:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 14:23:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:23:08,728 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:23:08,731 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:23:08,845 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:23:08,875 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:23:08,875 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:23:08,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:23:08 BoogieIcfgContainer [2022-12-14 14:23:08,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:23:08,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:23:08,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:23:08,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:23:08,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:23:07" (1/3) ... [2022-12-14 14:23:08,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2caa9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:23:08, skipping insertion in model container [2022-12-14 14:23:08,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:23:08" (2/3) ... [2022-12-14 14:23:08,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2caa9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:23:08, skipping insertion in model container [2022-12-14 14:23:08,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:23:08" (3/3) ... [2022-12-14 14:23:08,886 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_41_good.i [2022-12-14 14:23:08,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:23:08,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 14:23:08,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:23:08,946 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@67ad243d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:23:08,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 14:23:08,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 20 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 14:23:08,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 14:23:08,954 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:08,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:08,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 14:23:08,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:08,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1184530871, now seen corresponding path program 1 times [2022-12-14 14:23:08,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:08,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54958716] [2022-12-14 14:23:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:08,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:23:09,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:09,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54958716] [2022-12-14 14:23:09,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54958716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:09,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:09,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:23:09,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628000846] [2022-12-14 14:23:09,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:09,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:23:09,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:23:09,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:23:09,218 INFO L87 Difference]: Start difference. First operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 20 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:23:09,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:09,258 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2022-12-14 14:23:09,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:23:09,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-12-14 14:23:09,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:09,266 INFO L225 Difference]: With dead ends: 27 [2022-12-14 14:23:09,266 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 14:23:09,268 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:23:09,270 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:09,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:23:09,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 14:23:09,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-14 14:23:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 16 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 14:23:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-14 14:23:09,298 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2022-12-14 14:23:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:09,299 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-14 14:23:09,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:23:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-14 14:23:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:23:09,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:09,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:09,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:23:09,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 14:23:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:09,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1934248604, now seen corresponding path program 1 times [2022-12-14 14:23:09,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:09,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205799285] [2022-12-14 14:23:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:09,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:23:09,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:09,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205799285] [2022-12-14 14:23:09,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205799285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:09,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:09,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:23:09,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061671230] [2022-12-14 14:23:09,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:09,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:23:09,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:09,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:23:09,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:23:09,444 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:23:09,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:09,479 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-14 14:23:09,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:23:09,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-12-14 14:23:09,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:09,481 INFO L225 Difference]: With dead ends: 21 [2022-12-14 14:23:09,481 INFO L226 Difference]: Without dead ends: 20 [2022-12-14 14:23:09,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:23:09,482 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:09,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 28 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:23:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-14 14:23:09,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-12-14 14:23:09,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.25) internal successors, (15), 15 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 14:23:09,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-12-14 14:23:09,486 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2022-12-14 14:23:09,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:09,486 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-12-14 14:23:09,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:23:09,487 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-12-14 14:23:09,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:23:09,487 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:09,487 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:09,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:23:09,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 14:23:09,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:09,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1686577403, now seen corresponding path program 1 times [2022-12-14 14:23:09,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:09,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891012530] [2022-12-14 14:23:09,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:09,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:23:09,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:09,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891012530] [2022-12-14 14:23:09,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891012530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:09,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:09,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:23:09,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265779149] [2022-12-14 14:23:09,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:09,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:23:09,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:09,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:23:09,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:23:09,567 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:23:09,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:09,581 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-12-14 14:23:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:23:09,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-12-14 14:23:09,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:09,582 INFO L225 Difference]: With dead ends: 20 [2022-12-14 14:23:09,582 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 14:23:09,583 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:23:09,584 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:09,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:23:09,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 14:23:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 14:23:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 14:23:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-12-14 14:23:09,589 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2022-12-14 14:23:09,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:09,590 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-12-14 14:23:09,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:23:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-14 14:23:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 14:23:09,590 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:23:09,591 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:23:09,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:23:09,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 14:23:09,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:23:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash -744291870, now seen corresponding path program 1 times [2022-12-14 14:23:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:23:09,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548259749] [2022-12-14 14:23:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:23:09,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:23:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:23:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:23:09,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:23:09,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548259749] [2022-12-14 14:23:09,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548259749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:09,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:23:09,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:23:09,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708501046] [2022-12-14 14:23:09,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:09,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:23:09,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:09,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:23:09,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:23:09,667 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:23:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:23:09,679 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-12-14 14:23:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:23:09,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-12-14 14:23:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:23:09,680 INFO L225 Difference]: With dead ends: 19 [2022-12-14 14:23:09,680 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:23:09,680 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:23:09,681 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:23:09,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:23:09,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:23:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:23:09,683 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) [2022-12-14 14:23:09,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:23:09,683 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 14:23:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:23:09,683 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:23:09,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 14:23:09,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:23:09,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:23:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-14 14:23:09,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-14 14:23:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-14 14:23:09,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-14 14:23:09,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:23:09,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:23:09,709 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-14 14:23:09,710 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-14 14:23:09,710 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-14 14:23:09,710 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-14 14:23:09,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2022-12-14 14:23:09,710 INFO L895 garLoopResultBuilder]: At program point L1569(line 1569) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= |ULTIMATE.start_goodB2GSink_~data#1| 2147483647)) [2022-12-14 14:23:09,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:23:09,710 INFO L899 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2022-12-14 14:23:09,711 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1551) no Hoare annotation was computed. [2022-12-14 14:23:09,711 INFO L899 garLoopResultBuilder]: For program point L1567-1(line 1567) no Hoare annotation was computed. [2022-12-14 14:23:09,711 INFO L899 garLoopResultBuilder]: For program point L1565(lines 1565 1574) no Hoare annotation was computed. [2022-12-14 14:23:09,711 INFO L895 garLoopResultBuilder]: At program point L1588(line 1588) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) [2022-12-14 14:23:09,711 INFO L899 garLoopResultBuilder]: For program point L1588-1(lines 1582 1589) no Hoare annotation was computed. [2022-12-14 14:23:09,711 INFO L902 garLoopResultBuilder]: At program point L1553(line 1553) the Hoare annotation is: true [2022-12-14 14:23:09,711 INFO L899 garLoopResultBuilder]: For program point L1553-1(lines 1548 1555) no Hoare annotation was computed. [2022-12-14 14:23:09,711 INFO L899 garLoopResultBuilder]: For program point L1551(line 1551) no Hoare annotation was computed. [2022-12-14 14:23:09,711 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1589) no Hoare annotation was computed. [2022-12-14 14:23:09,712 INFO L899 garLoopResultBuilder]: For program point L1551-1(line 1551) no Hoare annotation was computed. [2022-12-14 14:23:09,712 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:23:09,712 INFO L902 garLoopResultBuilder]: At program point L1603(line 1603) the Hoare annotation is: true [2022-12-14 14:23:09,712 INFO L902 garLoopResultBuilder]: At program point L1603-1(line 1603) the Hoare annotation is: true [2022-12-14 14:23:09,712 INFO L902 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: true [2022-12-14 14:23:09,712 INFO L899 garLoopResultBuilder]: For program point L1601-1(line 1601) no Hoare annotation was computed. [2022-12-14 14:23:09,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2022-12-14 14:23:09,713 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1551) no Hoare annotation was computed. [2022-12-14 14:23:09,713 INFO L895 garLoopResultBuilder]: At program point L1573(line 1573) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= |ULTIMATE.start_goodB2GSink_~data#1| 2147483647)) [2022-12-14 14:23:09,713 INFO L899 garLoopResultBuilder]: For program point L1573-1(lines 1563 1575) no Hoare annotation was computed. [2022-12-14 14:23:09,715 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 14:23:09,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:23:09,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:23:09 BoogieIcfgContainer [2022-12-14 14:23:09,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:23:09,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:23:09,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:23:09,723 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:23:09,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:23:08" (3/4) ... [2022-12-14 14:23:09,726 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:23:09,730 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 14:23:09,730 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 14:23:09,733 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-12-14 14:23:09,733 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 14:23:09,733 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 14:23:09,733 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:23:09,757 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:23:09,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:23:09,758 INFO L158 Benchmark]: Toolchain (without parser) took 2096.84ms. Allocated memory is still 167.8MB. Free memory was 129.1MB in the beginning and 102.3MB in the end (delta: 26.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-12-14 14:23:09,758 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory was 85.2MB in the beginning and 85.1MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:23:09,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 857.18ms. Allocated memory is still 167.8MB. Free memory was 128.4MB in the beginning and 126.9MB in the end (delta: 1.5MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2022-12-14 14:23:09,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.05ms. Allocated memory is still 167.8MB. Free memory was 126.9MB in the beginning and 123.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:23:09,759 INFO L158 Benchmark]: Boogie Preprocessor took 17.94ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 122.9MB in the end (delta: 905.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:23:09,759 INFO L158 Benchmark]: RCFGBuilder took 296.87ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 107.0MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:23:09,759 INFO L158 Benchmark]: TraceAbstraction took 843.29ms. Allocated memory is still 167.8MB. Free memory was 106.1MB in the beginning and 105.5MB in the end (delta: 613.3kB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2022-12-14 14:23:09,759 INFO L158 Benchmark]: Witness Printer took 34.09ms. Allocated memory is still 167.8MB. Free memory was 105.5MB in the beginning and 102.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:23:09,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory was 85.2MB in the beginning and 85.1MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 857.18ms. Allocated memory is still 167.8MB. Free memory was 128.4MB in the beginning and 126.9MB in the end (delta: 1.5MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.05ms. Allocated memory is still 167.8MB. Free memory was 126.9MB in the beginning and 123.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.94ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 122.9MB in the end (delta: 905.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 296.87ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 107.0MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 843.29ms. Allocated memory is still 167.8MB. Free memory was 106.1MB in the beginning and 105.5MB in the end (delta: 613.3kB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 34.09ms. Allocated memory is still 167.8MB. Free memory was 105.5MB in the beginning and 102.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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 3 procedures, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 68 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 23 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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 4 specifications checked. All of them hold - InvariantResult [Line: 1603]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 14:23:09,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e991bc3-59ed-4014-836b-053cd8c9e7dc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE