./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/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_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/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 32bit --witnessprinter.graph.data.programhash 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d --- 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 06:38:04,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:38:04,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:38:04,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:38:04,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:38:04,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:38:04,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:38:04,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:38:04,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:38:04,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:38:04,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:38:04,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:38:04,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:38:04,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:38:04,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:38:04,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:38:04,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:38:04,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:38:04,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:38:04,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:38:04,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:38:04,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:38:04,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:38:04,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:38:04,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:38:04,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:38:04,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:38:04,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:38:04,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:38:04,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:38:04,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:38:04,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:38:04,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:38:04,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:38:04,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:38:04,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:38:04,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:38:04,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:38:04,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:38:04,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:38:04,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:38:04,448 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 06:38:04,467 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:38:04,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:38:04,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:38:04,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:38:04,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:38:04,469 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:38:04,469 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:38:04,469 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:38:04,469 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:38:04,469 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:38:04,469 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:38:04,470 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:38:04,470 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:38:04,470 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:38:04,470 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:38:04,470 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:38:04,470 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:38:04,471 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:38:04,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:38:04,471 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:38:04,472 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:38:04,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:38:04,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:38:04,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:38:04,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:38:04,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:38:04,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:38:04,473 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:38:04,473 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:38:04,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:38:04,473 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:38:04,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:38:04,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:38:04,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:38:04,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:38:04,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:38:04,475 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:38:04,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:38:04,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:38:04,475 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:38:04,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:38:04,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:38:04,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:38:04,476 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_be027305-b3cf-4495-b900-81c6ee45de93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d [2022-12-14 06:38:04,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:38:04,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:38:04,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:38:04,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:38:04,667 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:38:04,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2022-12-14 06:38:07,377 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:38:07,499 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:38:07,499 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2022-12-14 06:38:07,503 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/data/891c04519/bcd7377f3bb54395bc8dfee8003beb1e/FLAGc0aeba36e [2022-12-14 06:38:07,515 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/data/891c04519/bcd7377f3bb54395bc8dfee8003beb1e [2022-12-14 06:38:07,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:38:07,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:38:07,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:38:07,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:38:07,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:38:07,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533dac11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07, skipping insertion in model container [2022-12-14 06:38:07,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:38:07,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:38:07,649 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2022-12-14 06:38:07,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2022-12-14 06:38:07,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:38:07,660 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:38:07,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2022-12-14 06:38:07,671 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2022-12-14 06:38:07,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:38:07,681 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:38:07,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07 WrapperNode [2022-12-14 06:38:07,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:38:07,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:38:07,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:38:07,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:38:07,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,702 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-12-14 06:38:07,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:38:07,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:38:07,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:38:07,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:38:07,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,715 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:38:07,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:38:07,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:38:07,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:38:07,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (1/1) ... [2022-12-14 06:38:07,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:38:07,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:38:07,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:38:07,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:38:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:38:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-14 06:38:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-14 06:38:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:38:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:38:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:38:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-14 06:38:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-14 06:38:07,831 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:38:07,832 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:38:07,922 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:38:07,933 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:38:07,934 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:38:07,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:38:07 BoogieIcfgContainer [2022-12-14 06:38:07,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:38:07,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:38:07,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:38:07,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:38:07,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:38:07" (1/3) ... [2022-12-14 06:38:07,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360037af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:38:07, skipping insertion in model container [2022-12-14 06:38:07,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:07" (2/3) ... [2022-12-14 06:38:07,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360037af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:38:07, skipping insertion in model container [2022-12-14 06:38:07,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:38:07" (3/3) ... [2022-12-14 06:38:07,946 INFO L112 eAbstractionObserver]: Analyzing ICFG afterrec_2calls-1.c [2022-12-14 06:38:07,964 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:38:07,964 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 06:38:08,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:38:08,012 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;@7fd40673, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:38:08,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 06:38:08,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:38:08,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:38:08,021 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:08,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:38:08,022 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:38:08,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:08,027 INFO L85 PathProgramCache]: Analyzing trace with hash 65689284, now seen corresponding path program 1 times [2022-12-14 06:38:08,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:08,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414920882] [2022-12-14 06:38:08,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:08,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:08,180 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 06:38:08,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:08,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414920882] [2022-12-14 06:38:08,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414920882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:38:08,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:38:08,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:38:08,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283166219] [2022-12-14 06:38:08,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:38:08,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:38:08,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:38:08,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:38:08,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:38:08,222 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:08,251 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-12-14 06:38:08,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:38:08,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 06:38:08,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:08,260 INFO L225 Difference]: With dead ends: 32 [2022-12-14 06:38:08,260 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 06:38:08,263 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 06:38:08,266 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 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 06:38:08,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:38:08,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 06:38:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 06:38:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 12 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 06:38:08,298 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2022-12-14 06:38:08,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:08,298 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 06:38:08,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,299 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 06:38:08,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:38:08,299 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:08,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:38:08,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:38:08,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:38:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:08,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2036367842, now seen corresponding path program 1 times [2022-12-14 06:38:08,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:08,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451813280] [2022-12-14 06:38:08,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:08,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:08,363 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 06:38:08,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:08,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451813280] [2022-12-14 06:38:08,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451813280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:38:08,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:38:08,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:38:08,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793525705] [2022-12-14 06:38:08,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:38:08,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:38:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:38:08,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:38:08,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:38:08,367 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:08,415 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2022-12-14 06:38:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:38:08,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 06:38:08,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:08,416 INFO L225 Difference]: With dead ends: 21 [2022-12-14 06:38:08,417 INFO L226 Difference]: Without dead ends: 20 [2022-12-14 06:38:08,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:38:08,419 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:38:08,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 38 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:38:08,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-14 06:38:08,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2022-12-14 06:38:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-12-14 06:38:08,424 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2022-12-14 06:38:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:08,425 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-12-14 06:38:08,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-12-14 06:38:08,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 06:38:08,426 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:08,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:38:08,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:38:08,426 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:38:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash -272226633, now seen corresponding path program 1 times [2022-12-14 06:38:08,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:08,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008279699] [2022-12-14 06:38:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:08,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:08,475 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 06:38:08,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:08,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008279699] [2022-12-14 06:38:08,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008279699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:38:08,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:38:08,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:38:08,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877118434] [2022-12-14 06:38:08,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:38:08,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:38:08,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:38:08,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:38:08,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:38:08,478 INFO L87 Difference]: Start difference. First operand 19 states and 19 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), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:08,486 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-14 06:38:08,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:38:08,487 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), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 06:38:08,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:08,487 INFO L225 Difference]: With dead ends: 19 [2022-12-14 06:38:08,487 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 06:38:08,487 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 06:38:08,488 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:38:08,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:38:08,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 06:38:08,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 06:38:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-12-14 06:38:08,492 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 10 [2022-12-14 06:38:08,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:08,493 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-12-14 06:38:08,493 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), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-12-14 06:38:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:38:08,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:38:08,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:38:08,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:38:08,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:38:08,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:38:08,494 INFO L85 PathProgramCache]: Analyzing trace with hash 150909027, now seen corresponding path program 1 times [2022-12-14 06:38:08,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:38:08,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554159655] [2022-12-14 06:38:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:38:08,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:38:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:38:08,607 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 06:38:08,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:38:08,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554159655] [2022-12-14 06:38:08,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554159655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:38:08,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:38:08,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:38:08,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337746753] [2022-12-14 06:38:08,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:38:08,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:38:08,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:38:08,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:38:08,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:38:08,611 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:38:08,685 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-12-14 06:38:08,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:38:08,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 06:38:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:38:08,685 INFO L225 Difference]: With dead ends: 18 [2022-12-14 06:38:08,685 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:38:08,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 06:38:08,687 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:38:08,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:38:08,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:38:08,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:38:08,688 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 06:38:08,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:38:08,689 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-12-14 06:38:08,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:38:08,689 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:38:08,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:38:08,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:38:08,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:38:08,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-14 06:38:08,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-14 06:38:08,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-14 06:38:08,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-14 06:38:08,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:38:08,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:38:08,721 INFO L899 garLoopResultBuilder]: For program point fFINAL(lines 8 13) no Hoare annotation was computed. [2022-12-14 06:38:08,722 INFO L895 garLoopResultBuilder]: At program point L11(line 11) the Hoare annotation is: (or (<= f_~n 3) (not (<= |f_#in~n| 4))) [2022-12-14 06:38:08,722 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-12-14 06:38:08,722 INFO L899 garLoopResultBuilder]: For program point L11-1(lines 8 13) no Hoare annotation was computed. [2022-12-14 06:38:08,722 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 13) the Hoare annotation is: true [2022-12-14 06:38:08,722 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-12-14 06:38:08,723 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2022-12-14 06:38:08,723 INFO L899 garLoopResultBuilder]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-12-14 06:38:08,723 INFO L899 garLoopResultBuilder]: For program point fEXIT(lines 8 13) no Hoare annotation was computed. [2022-12-14 06:38:08,723 INFO L899 garLoopResultBuilder]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2022-12-14 06:38:08,723 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:38:08,723 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:38:08,723 INFO L902 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: true [2022-12-14 06:38:08,724 INFO L899 garLoopResultBuilder]: For program point L23-1(lines 22 24) no Hoare annotation was computed. [2022-12-14 06:38:08,724 INFO L895 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (or (<= f2_~n 3) (not (<= |f2_#in~n| 3))) [2022-12-14 06:38:08,724 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-12-14 06:38:08,724 INFO L899 garLoopResultBuilder]: For program point L18-1(lines 15 20) no Hoare annotation was computed. [2022-12-14 06:38:08,724 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-12-14 06:38:08,724 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-12-14 06:38:08,724 INFO L899 garLoopResultBuilder]: For program point f2EXIT(lines 15 20) no Hoare annotation was computed. [2022-12-14 06:38:08,725 INFO L899 garLoopResultBuilder]: For program point f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-12-14 06:38:08,725 INFO L899 garLoopResultBuilder]: For program point f2FINAL(lines 15 20) no Hoare annotation was computed. [2022-12-14 06:38:08,725 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 15 20) the Hoare annotation is: true [2022-12-14 06:38:08,725 INFO L899 garLoopResultBuilder]: For program point f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-12-14 06:38:08,728 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 06:38:08,730 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:38:08,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:38:08 BoogieIcfgContainer [2022-12-14 06:38:08,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:38:08,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:38:08,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:38:08,734 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:38:08,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:38:07" (3/4) ... [2022-12-14 06:38:08,737 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:38:08,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2022-12-14 06:38:08,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2022-12-14 06:38:08,744 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 06:38:08,744 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 06:38:08,744 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:38:08,744 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:38:08,769 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:38:08,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:38:08,770 INFO L158 Benchmark]: Toolchain (without parser) took 1251.46ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 99.9MB in the beginning and 98.9MB in the end (delta: 931.0kB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2022-12-14 06:38:08,770 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:38:08,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.92ms. Allocated memory is still 136.3MB. Free memory was 99.9MB in the beginning and 89.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:38:08,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.56ms. Allocated memory is still 136.3MB. Free memory was 89.8MB in the beginning and 88.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:38:08,771 INFO L158 Benchmark]: Boogie Preprocessor took 13.51ms. Allocated memory is still 136.3MB. Free memory was 88.6MB in the beginning and 87.7MB in the end (delta: 883.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:38:08,771 INFO L158 Benchmark]: RCFGBuilder took 219.25ms. Allocated memory is still 136.3MB. Free memory was 87.7MB in the beginning and 78.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 06:38:08,771 INFO L158 Benchmark]: TraceAbstraction took 794.27ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 77.2MB in the beginning and 101.0MB in the end (delta: -23.8MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-12-14 06:38:08,771 INFO L158 Benchmark]: Witness Printer took 34.88ms. Allocated memory is still 163.6MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:38:08,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.92ms. Allocated memory is still 136.3MB. Free memory was 99.9MB in the beginning and 89.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.56ms. Allocated memory is still 136.3MB. Free memory was 89.8MB in the beginning and 88.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.51ms. Allocated memory is still 136.3MB. Free memory was 88.6MB in the beginning and 87.7MB in the end (delta: 883.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 219.25ms. Allocated memory is still 136.3MB. Free memory was 87.7MB in the beginning and 78.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 794.27ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 77.2MB in the beginning and 101.0MB in the end (delta: -23.8MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 34.88ms. Allocated memory is still 163.6MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.1MB). 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: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 41 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 19 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! [2022-12-14 06:38:08,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be027305-b3cf-4495-b900-81c6ee45de93/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