./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_09_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_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/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_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_09_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/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_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/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 62d43669a2226151c501d02bf6429cc7d73e5a386adfcc0413c4e21c1c000bc1 --- 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 10:45:45,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:45:45,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:45:45,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:45:45,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:45:45,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:45:45,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:45:45,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:45:45,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:45:45,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:45:45,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:45:45,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:45:45,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:45:45,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:45:45,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:45:45,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:45:45,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:45:45,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:45:45,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:45:45,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:45:45,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:45:45,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:45:45,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:45:45,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:45:45,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:45:45,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:45:45,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:45:45,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:45:45,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:45:45,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:45:45,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:45:45,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:45:45,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:45:45,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:45:45,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:45:45,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:45:45,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:45:45,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:45:45,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:45:45,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:45:45,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:45:45,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 10:45:45,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:45:45,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:45:45,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:45:45,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:45:45,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:45:45,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:45:45,514 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:45:45,514 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:45:45,514 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:45:45,514 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:45:45,514 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:45:45,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:45:45,515 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:45:45,515 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:45:45,515 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:45:45,515 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:45:45,515 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:45:45,516 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:45:45,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:45:45,516 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:45:45,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:45:45,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:45:45,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:45:45,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:45:45,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:45:45,517 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:45:45,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:45:45,518 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:45:45,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:45:45,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:45:45,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:45:45,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:45:45,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:45:45,519 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:45:45,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:45:45,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:45:45,519 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:45:45,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:45:45,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:45:45,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:45:45,520 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_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62d43669a2226151c501d02bf6429cc7d73e5a386adfcc0413c4e21c1c000bc1 [2022-12-14 10:45:45,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:45:45,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:45:45,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:45:45,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:45:45,730 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:45:45,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_09_good.i [2022-12-14 10:45:48,389 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:45:48,622 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:45:48,622 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_09_good.i [2022-12-14 10:45:48,638 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/data/9087ad568/40bd068d79b749afa416d0c955328554/FLAGaece96dd4 [2022-12-14 10:45:48,650 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/data/9087ad568/40bd068d79b749afa416d0c955328554 [2022-12-14 10:45:48,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:45:48,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:45:48,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:45:48,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:45:48,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:45:48,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:45:48" (1/1) ... [2022-12-14 10:45:48,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200ab85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:48, skipping insertion in model container [2022-12-14 10:45:48,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:45:48" (1/1) ... [2022-12-14 10:45:48,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:45:48,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:45:48,918 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:45:49,221 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:45:49,225 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:45:49,226 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:45:49,228 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:45:49,229 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:45:49,246 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:45:49,251 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:45:49,258 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:45:49,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:45:49,267 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:45:49,281 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:45:49,311 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:45:49,312 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:45:49,313 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:45:49,314 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:45:49,315 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:45:49,317 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:45:49,319 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:45:49,322 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:45:49,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:45:49,434 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:45:49,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49 WrapperNode [2022-12-14 10:45:49,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:45:49,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:45:49,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:45:49,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:45:49,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,487 INFO L138 Inliner]: procedures = 504, calls = 85, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 119 [2022-12-14 10:45:49,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:45:49,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:45:49,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:45:49,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:45:49,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:45:49,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:45:49,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:45:49,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:45:49,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (1/1) ... [2022-12-14 10:45:49,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:45:49,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:45:49,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:45:49,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:45:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 10:45:49,587 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 10:45:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 10:45:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:45:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:45:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:45:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 10:45:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:45:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:45:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:45:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:45:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:45:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:45:49,701 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:45:49,702 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:45:49,882 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:45:49,916 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:45:49,916 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:45:49,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:45:49 BoogieIcfgContainer [2022-12-14 10:45:49,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:45:49,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:45:49,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:45:49,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:45:49,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:45:48" (1/3) ... [2022-12-14 10:45:49,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7981f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:45:49, skipping insertion in model container [2022-12-14 10:45:49,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:45:49" (2/3) ... [2022-12-14 10:45:49,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7981f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:45:49, skipping insertion in model container [2022-12-14 10:45:49,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:45:49" (3/3) ... [2022-12-14 10:45:49,926 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_09_good.i [2022-12-14 10:45:49,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:45:49,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 10:45:49,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:45:49,986 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;@15662a95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:45:49,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 10:45:49,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 47 states have internal predecessors, (49), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 10:45:49,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:45:49,996 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:49,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:49,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:45:50,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:50,001 INFO L85 PathProgramCache]: Analyzing trace with hash -906031154, now seen corresponding path program 1 times [2022-12-14 10:45:50,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:50,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129134364] [2022-12-14 10:45:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:50,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:50,226 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 10:45:50,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:50,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129134364] [2022-12-14 10:45:50,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129134364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:50,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:50,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:45:50,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479761567] [2022-12-14 10:45:50,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:50,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:45:50,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:50,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:45:50,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,263 INFO L87 Difference]: Start difference. First operand has 53 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 47 states have internal predecessors, (49), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 2.3333333333333335) 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 10:45:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:50,310 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2022-12-14 10:45:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:45:50,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) 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 10:45:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:50,318 INFO L225 Difference]: With dead ends: 99 [2022-12-14 10:45:50,318 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 10:45:50,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,323 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:50,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 57 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:45:50,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 10:45:50,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-12-14 10:45:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 41 states have internal predecessors, (41), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 10:45:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-12-14 10:45:50,353 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 9 [2022-12-14 10:45:50,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:50,355 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-12-14 10:45:50,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) 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 10:45:50,355 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-12-14 10:45:50,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:45:50,356 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:50,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:50,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:45:50,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:45:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:50,357 INFO L85 PathProgramCache]: Analyzing trace with hash 882841139, now seen corresponding path program 1 times [2022-12-14 10:45:50,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:50,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846364290] [2022-12-14 10:45:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:50,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:50,430 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 10:45:50,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:50,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846364290] [2022-12-14 10:45:50,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846364290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:50,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:50,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:45:50,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077001537] [2022-12-14 10:45:50,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:50,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:45:50,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:50,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:45:50,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,434 INFO L87 Difference]: Start difference. First operand 48 states and 61 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, (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 10:45:50,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:50,455 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2022-12-14 10:45:50,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:45:50,456 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, (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 11 [2022-12-14 10:45:50,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:50,457 INFO L225 Difference]: With dead ends: 48 [2022-12-14 10:45:50,457 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 10:45:50,458 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 10:45:50,459 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 31 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:50,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 62 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:45:50,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 10:45:50,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-14 10:45:50,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 40 states have internal predecessors, (40), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 10:45:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2022-12-14 10:45:50,467 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 60 transitions. Word has length 11 [2022-12-14 10:45:50,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:50,467 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 60 transitions. [2022-12-14 10:45:50,467 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, (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 10:45:50,467 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions. [2022-12-14 10:45:50,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:45:50,467 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:50,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:50,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:45:50,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:45:50,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:50,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1598271604, now seen corresponding path program 1 times [2022-12-14 10:45:50,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:50,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620083719] [2022-12-14 10:45:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:50,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:50,506 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 10:45:50,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:50,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620083719] [2022-12-14 10:45:50,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620083719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:50,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:50,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:45:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679687023] [2022-12-14 10:45:50,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:50,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:45:50,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:50,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:45:50,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,508 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10:45:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:50,538 INFO L93 Difference]: Finished difference Result 112 states and 141 transitions. [2022-12-14 10:45:50,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:45:50,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-12-14 10:45:50,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:50,540 INFO L225 Difference]: With dead ends: 112 [2022-12-14 10:45:50,540 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 10:45:50,541 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 10:45:50,542 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 30 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:50,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 144 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:45:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 10:45:50,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 49. [2022-12-14 10:45:50,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 41 states have internal predecessors, (43), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 10:45:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2022-12-14 10:45:50,551 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 12 [2022-12-14 10:45:50,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:50,552 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2022-12-14 10:45:50,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10:45:50,552 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2022-12-14 10:45:50,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 10:45:50,552 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:50,553 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:50,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:45:50,553 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:45:50,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:50,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1023207007, now seen corresponding path program 1 times [2022-12-14 10:45:50,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:50,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617705745] [2022-12-14 10:45:50,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:50,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:50,591 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 10:45:50,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:50,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617705745] [2022-12-14 10:45:50,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617705745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:50,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:50,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:45:50,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949389481] [2022-12-14 10:45:50,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:50,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:45:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:50,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:45:50,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,594 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:45:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:50,610 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2022-12-14 10:45:50,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:45:50,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-12-14 10:45:50,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:50,612 INFO L225 Difference]: With dead ends: 80 [2022-12-14 10:45:50,612 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 10:45:50,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,613 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:50,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 47 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:45:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 10:45:50,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-14 10:45:50,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 39 states have internal predecessors, (40), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 10:45:50,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2022-12-14 10:45:50,618 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 19 [2022-12-14 10:45:50,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:50,618 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2022-12-14 10:45:50,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:45:50,619 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2022-12-14 10:45:50,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 10:45:50,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:50,619 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:50,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:45:50,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:45:50,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:50,620 INFO L85 PathProgramCache]: Analyzing trace with hash 172725796, now seen corresponding path program 1 times [2022-12-14 10:45:50,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:50,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791795183] [2022-12-14 10:45:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:50,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:50,669 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 10:45:50,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:50,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791795183] [2022-12-14 10:45:50,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791795183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:50,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:50,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:45:50,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523221867] [2022-12-14 10:45:50,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:50,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:45:50,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:50,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:45:50,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,671 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 10:45:50,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:50,689 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2022-12-14 10:45:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:45:50,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 20 [2022-12-14 10:45:50,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:50,690 INFO L225 Difference]: With dead ends: 47 [2022-12-14 10:45:50,690 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 10:45:50,690 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 10:45:50,691 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 17 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:50,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 65 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:45:50,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 10:45:50,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 10:45:50,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 38 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 10:45:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-12-14 10:45:50,696 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 20 [2022-12-14 10:45:50,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:50,696 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-12-14 10:45:50,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 10:45:50,697 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-12-14 10:45:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 10:45:50,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:50,697 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:50,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:45:50,697 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:45:50,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:50,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1059532481, now seen corresponding path program 1 times [2022-12-14 10:45:50,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:50,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452943178] [2022-12-14 10:45:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:50,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:50,730 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 10:45:50,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:50,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452943178] [2022-12-14 10:45:50,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452943178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:50,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:50,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:45:50,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599034819] [2022-12-14 10:45:50,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:50,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:45:50,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:50,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:45:50,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,732 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 10:45:50,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:50,752 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2022-12-14 10:45:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:45:50,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 21 [2022-12-14 10:45:50,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:50,753 INFO L225 Difference]: With dead ends: 68 [2022-12-14 10:45:50,753 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 10:45:50,754 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 10:45:50,755 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:50,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 85 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:45:50,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 10:45:50,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-12-14 10:45:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 39 states have internal predecessors, (41), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 10:45:50,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2022-12-14 10:45:50,763 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 21 [2022-12-14 10:45:50,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:50,763 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2022-12-14 10:45:50,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 10:45:50,764 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2022-12-14 10:45:50,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 10:45:50,764 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:50,764 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:50,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:45:50,765 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:45:50,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:50,765 INFO L85 PathProgramCache]: Analyzing trace with hash -768304261, now seen corresponding path program 1 times [2022-12-14 10:45:50,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:50,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69602033] [2022-12-14 10:45:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:50,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 10:45:50,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:50,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69602033] [2022-12-14 10:45:50,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69602033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:50,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:50,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:45:50,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537880869] [2022-12-14 10:45:50,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:50,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:45:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:45:50,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:45:50,824 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 10:45:50,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:50,841 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2022-12-14 10:45:50,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:45:50,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2022-12-14 10:45:50,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:50,842 INFO L225 Difference]: With dead ends: 48 [2022-12-14 10:45:50,842 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 10:45:50,843 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 10:45:50,843 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:50,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 83 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:45:50,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 10:45:50,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 10:45:50,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 37 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 10:45:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-12-14 10:45:50,848 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 26 [2022-12-14 10:45:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:50,848 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-12-14 10:45:50,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 10:45:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-12-14 10:45:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 10:45:50,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:45:50,849 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:50,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:45:50,850 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:45:50,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:45:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash 462357975, now seen corresponding path program 1 times [2022-12-14 10:45:50,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:45:50,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377019794] [2022-12-14 10:45:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:45:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:45:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:45:50,918 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 10:45:50,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:45:50,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377019794] [2022-12-14 10:45:50,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377019794] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:45:50,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:45:50,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:45:50,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597932655] [2022-12-14 10:45:50,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:45:50,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:45:50,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:45:50,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:45:50,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:45:50,920 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 10:45:50,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:45:50,945 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-12-14 10:45:50,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:45:50,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-12-14 10:45:50,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:45:50,946 INFO L225 Difference]: With dead ends: 46 [2022-12-14 10:45:50,946 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:45:50,946 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 10:45:50,947 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:45:50,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 74 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:45:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:45:50,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:45:50,948 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 10:45:50,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:45:50,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-12-14 10:45:50,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:45:50,948 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:45:50,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 10:45:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:45:50,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:45:50,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 10:45:50,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 10:45:50,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 10:45:50,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 10:45:50,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 10:45:50,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 10:45:50,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 10:45:50,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 10:45:50,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:45:50,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:45:51,070 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-14 10:45:51,070 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-14 10:45:51,070 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-14 10:45:51,070 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-14 10:45:51,070 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2022-12-14 10:45:51,070 INFO L899 garLoopResultBuilder]: For program point L1588(lines 1588 1601) no Hoare annotation was computed. [2022-12-14 10:45:51,071 INFO L899 garLoopResultBuilder]: For program point L1588-2(lines 1585 1615) no Hoare annotation was computed. [2022-12-14 10:45:51,071 INFO L895 garLoopResultBuilder]: At program point L1580(line 1580) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648))) [2022-12-14 10:45:51,071 INFO L899 garLoopResultBuilder]: For program point L1580-1(lines 1548 1583) no Hoare annotation was computed. [2022-12-14 10:45:51,071 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1648) no Hoare annotation was computed. [2022-12-14 10:45:51,071 INFO L899 garLoopResultBuilder]: For program point L1572(lines 1572 1581) no Hoare annotation was computed. [2022-12-14 10:45:51,071 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1574) no Hoare annotation was computed. [2022-12-14 10:45:51,071 INFO L895 garLoopResultBuilder]: At program point L1622(line 1622) the Hoare annotation is: false [2022-12-14 10:45:51,071 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2022-12-14 10:45:51,072 INFO L899 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2022-12-14 10:45:51,072 INFO L899 garLoopResultBuilder]: For program point L1606-1(line 1606) no Hoare annotation was computed. [2022-12-14 10:45:51,072 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1574) no Hoare annotation was computed. [2022-12-14 10:45:51,072 INFO L895 garLoopResultBuilder]: At program point L1664(line 1664) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1)) [2022-12-14 10:45:51,072 INFO L899 garLoopResultBuilder]: For program point L1664-1(line 1664) no Hoare annotation was computed. [2022-12-14 10:45:51,072 INFO L899 garLoopResultBuilder]: For program point L1631(line 1631) no Hoare annotation was computed. [2022-12-14 10:45:51,072 INFO L895 garLoopResultBuilder]: At program point L1598(line 1598) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483646) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648))) [2022-12-14 10:45:51,072 INFO L899 garLoopResultBuilder]: For program point L1631-1(line 1631) no Hoare annotation was computed. [2022-12-14 10:45:51,072 INFO L899 garLoopResultBuilder]: For program point L1598-1(lines 1592 1599) no Hoare annotation was computed. [2022-12-14 10:45:51,073 INFO L899 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2022-12-14 10:45:51,073 INFO L899 garLoopResultBuilder]: For program point L1648-1(line 1648) no Hoare annotation was computed. [2022-12-14 10:45:51,073 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 10:45:51,073 INFO L899 garLoopResultBuilder]: For program point L1574(line 1574) no Hoare annotation was computed. [2022-12-14 10:45:51,073 INFO L899 garLoopResultBuilder]: For program point L1574-1(line 1574) no Hoare annotation was computed. [2022-12-14 10:45:51,073 INFO L899 garLoopResultBuilder]: For program point L1616(lines 1616 1636) no Hoare annotation was computed. [2022-12-14 10:45:51,073 INFO L895 garLoopResultBuilder]: At program point L1608(line 1608) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648))) [2022-12-14 10:45:51,073 INFO L899 garLoopResultBuilder]: For program point L1641-2(lines 1638 1653) no Hoare annotation was computed. [2022-12-14 10:45:51,073 INFO L895 garLoopResultBuilder]: At program point L1666(line 1666) the Hoare annotation is: (= ~GLOBAL_CONST_TRUE~0 1) [2022-12-14 10:45:51,073 INFO L895 garLoopResultBuilder]: At program point L1633(line 1633) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648))) [2022-12-14 10:45:51,074 INFO L895 garLoopResultBuilder]: At program point L1666-1(line 1666) the Hoare annotation is: (= ~GLOBAL_CONST_TRUE~0 1) [2022-12-14 10:45:51,074 INFO L899 garLoopResultBuilder]: For program point L1592(lines 1592 1599) no Hoare annotation was computed. [2022-12-14 10:45:51,074 INFO L895 garLoopResultBuilder]: At program point L1650(line 1650) the Hoare annotation is: (= ~GLOBAL_CONST_TRUE~0 1) [2022-12-14 10:45:51,074 INFO L899 garLoopResultBuilder]: For program point L1584(lines 1584 1615) no Hoare annotation was computed. [2022-12-14 10:45:51,074 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648))) [2022-12-14 10:45:51,074 INFO L895 garLoopResultBuilder]: At program point L1568(line 1568) the Hoare annotation is: false [2022-12-14 10:45:51,074 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1631) no Hoare annotation was computed. [2022-12-14 10:45:51,074 INFO L899 garLoopResultBuilder]: For program point L1552(lines 1552 1565) no Hoare annotation was computed. [2022-12-14 10:45:51,074 INFO L899 garLoopResultBuilder]: For program point L1552-2(lines 1549 1583) no Hoare annotation was computed. [2022-12-14 10:45:51,075 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 10:45:51,075 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1631) no Hoare annotation was computed. [2022-12-14 10:45:51,075 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2022-12-14 10:45:51,075 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483646) (= ~GLOBAL_CONST_TRUE~0 1) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648))) [2022-12-14 10:45:51,075 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2022-12-14 10:45:51,075 INFO L899 garLoopResultBuilder]: For program point L1620(lines 1620 1627) no Hoare annotation was computed. [2022-12-14 10:45:51,075 INFO L899 garLoopResultBuilder]: For program point L1620-1(lines 1617 1636) no Hoare annotation was computed. [2022-12-14 10:45:51,075 INFO L895 garLoopResultBuilder]: At program point L1612(line 1612) the Hoare annotation is: (and (= ~GLOBAL_CONST_FALSE~0 0) (= ~GLOBAL_CONST_TRUE~0 1) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648))) [2022-12-14 10:45:51,075 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1648) no Hoare annotation was computed. [2022-12-14 10:45:51,076 INFO L899 garLoopResultBuilder]: For program point L1637(lines 1637 1653) no Hoare annotation was computed. [2022-12-14 10:45:51,076 INFO L899 garLoopResultBuilder]: For program point L1604(lines 1604 1613) no Hoare annotation was computed. [2022-12-14 10:45:51,079 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:45:51,081 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:45:51,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:45:51 BoogieIcfgContainer [2022-12-14 10:45:51,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:45:51,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:45:51,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:45:51,094 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:45:51,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:45:49" (3/4) ... [2022-12-14 10:45:51,097 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:45:51,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 10:45:51,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 10:45:51,107 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-14 10:45:51,107 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 10:45:51,107 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 10:45:51,107 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:45:51,108 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:45:51,136 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:45:51,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:45:51,137 INFO L158 Benchmark]: Toolchain (without parser) took 2483.88ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 108.5MB in the beginning and 104.4MB in the end (delta: 4.1MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2022-12-14 10:45:51,137 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 144.7MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:45:51,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 780.25ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 108.5MB in the beginning and 128.0MB in the end (delta: -19.5MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-12-14 10:45:51,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.02ms. Allocated memory is still 174.1MB. Free memory was 128.0MB in the beginning and 124.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:45:51,138 INFO L158 Benchmark]: Boogie Preprocessor took 26.61ms. Allocated memory is still 174.1MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:45:51,138 INFO L158 Benchmark]: RCFGBuilder took 403.82ms. Allocated memory is still 174.1MB. Free memory was 122.7MB in the beginning and 103.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 10:45:51,138 INFO L158 Benchmark]: TraceAbstraction took 1172.16ms. Allocated memory is still 174.1MB. Free memory was 103.7MB in the beginning and 108.6MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:45:51,138 INFO L158 Benchmark]: Witness Printer took 42.57ms. Allocated memory is still 174.1MB. Free memory was 108.6MB in the beginning and 104.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:45:51,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 144.7MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 780.25ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 108.5MB in the beginning and 128.0MB in the end (delta: -19.5MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.02ms. Allocated memory is still 174.1MB. Free memory was 128.0MB in the beginning and 124.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.61ms. Allocated memory is still 174.1MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.82ms. Allocated memory is still 174.1MB. Free memory was 122.7MB in the beginning and 103.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1172.16ms. Allocated memory is still 174.1MB. Free memory was 103.7MB in the beginning and 108.6MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.57ms. Allocated memory is still 174.1MB. Free memory was 108.6MB in the beginning and 104.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1648]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1648]: 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, 53 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 223 mSDsluCounter, 617 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 200 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 417 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 29 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 47 PreInvPairs, 56 NumberOfFragments, 130 HoareAnnotationTreeSize, 47 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 108 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 18/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1666]: Loop Invariant Derived loop invariant: GLOBAL_CONST_TRUE == 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 10:45:51,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b52ad760-9afc-4ef7-8e1b-776b3045f5dd/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