./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur --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 5bddd5658ff9e2d2e177f124d84485d4ea1933fef16d13d695f9a7ad4ae9fbbf --- 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-38b53e6 [2022-11-25 23:31:58,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:31:58,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:31:58,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:31:58,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:31:58,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:31:58,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:31:58,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:31:58,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:31:58,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:31:58,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:31:58,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:31:58,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:31:58,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:31:58,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:31:58,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:31:58,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:31:58,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:31:58,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:31:58,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:31:58,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:31:58,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:31:58,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:31:58,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:31:58,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:31:58,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:31:58,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:31:58,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:31:58,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:31:58,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:31:58,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:31:58,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:31:58,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:31:58,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:31:58,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:31:58,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:31:58,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:31:58,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:31:58,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:31:58,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:31:58,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:31:58,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:31:58,352 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:31:58,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:31:58,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:31:58,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:31:58,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:31:58,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:31:58,358 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:31:58,358 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:31:58,358 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:31:58,358 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:31:58,359 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:31:58,359 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:31:58,360 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:31:58,360 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:31:58,360 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:31:58,360 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:31:58,361 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:31:58,361 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:31:58,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:31:58,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:31:58,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:31:58,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:31:58,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:31:58,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:31:58,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:31:58,363 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:31:58,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:31:58,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:31:58,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:31:58,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:31:58,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:31:58,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:31:58,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:31:58,365 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:31:58,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:31:58,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:31:58,366 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:31:58,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:31:58,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:31:58,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:31:58,367 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_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bddd5658ff9e2d2e177f124d84485d4ea1933fef16d13d695f9a7ad4ae9fbbf [2022-11-25 23:31:58,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:31:58,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:31:58,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:31:58,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:31:58,683 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:31:58,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-11-25 23:32:01,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:32:02,171 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:32:02,171 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-11-25 23:32:02,195 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/data/8a41903f1/572762a92bba4b3ea63563e72b16eb73/FLAG32e348fca [2022-11-25 23:32:02,210 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/data/8a41903f1/572762a92bba4b3ea63563e72b16eb73 [2022-11-25 23:32:02,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:32:02,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:32:02,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:32:02,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:32:02,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:32:02,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:32:02" (1/1) ... [2022-11-25 23:32:02,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8bcbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:02, skipping insertion in model container [2022-11-25 23:32:02,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:32:02" (1/1) ... [2022-11-25 23:32:02,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:32:02,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:32:02,707 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:32:03,183 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:32:03,192 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:32:03,194 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:32:03,196 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:32:03,197 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:32:03,229 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:32:03,231 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:32:03,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:32:03,246 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:32:03,289 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:32:03,356 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:32:03,359 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:32:03,360 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:32:03,365 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:32:03,367 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:32:03,379 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:32:03,387 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:32:03,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:32:03,556 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:32:03,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03 WrapperNode [2022-11-25 23:32:03,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:32:03,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:32:03,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:32:03,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:32:03,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,634 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-11-25 23:32:03,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:32:03,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:32:03,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:32:03,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:32:03,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:32:03,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:32:03,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:32:03,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:32:03,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (1/1) ... [2022-11-25 23:32:03,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:32:03,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:32:03,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:32:03,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:32:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:32:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:32:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:32:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:32:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:32:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:32:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:32:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:32:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:32:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:32:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:32:03,903 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:32:03,905 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:32:04,035 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:32:04,086 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:32:04,086 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:32:04,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:04 BoogieIcfgContainer [2022-11-25 23:32:04,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:32:04,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:32:04,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:32:04,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:32:04,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:32:02" (1/3) ... [2022-11-25 23:32:04,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56475b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:32:04, skipping insertion in model container [2022-11-25 23:32:04,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:03" (2/3) ... [2022-11-25 23:32:04,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56475b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:32:04, skipping insertion in model container [2022-11-25 23:32:04,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:04" (3/3) ... [2022-11-25 23:32:04,097 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-11-25 23:32:04,140 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:32:04,140 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:32:04,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:32:04,187 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;@7d893b7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:32:04,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:32:04,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:32:04,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:32:04,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:04,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:32:04,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:32:04,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:04,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1634005509, now seen corresponding path program 1 times [2022-11-25 23:32:04,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:32:04,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728859189] [2022-11-25 23:32:04,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:04,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:32:04,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:32:04,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728859189] [2022-11-25 23:32:04,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728859189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:04,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:32:04,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:32:04,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815383389] [2022-11-25 23:32:04,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:04,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:32:04,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:32:04,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:32:04,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:32:04,696 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-25 23:32:04,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:04,748 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-25 23:32:04,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:32:04,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 8 [2022-11-25 23:32:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:04,758 INFO L225 Difference]: With dead ends: 15 [2022-11-25 23:32:04,759 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 23:32:04,762 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 [2022-11-25 23:32:04,770 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:32:04,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:32:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 23:32:04,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-25 23:32:04,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-11-25 23:32:04,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-25 23:32:04,811 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-11-25 23:32:04,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:32:04,813 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-25 23:32:04,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-25 23:32:04,813 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-25 23:32:04,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:32:04,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:04,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:32:04,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:32:04,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:32:04,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:04,816 INFO L85 PathProgramCache]: Analyzing trace with hash 885436829, now seen corresponding path program 1 times [2022-11-25 23:32:04,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:32:04,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647564325] [2022-11-25 23:32:04,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:04,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:32:04,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:32:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:32:04,903 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:32:04,905 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:32:04,907 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:32:04,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:32:04,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:32:04,916 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:32:04,920 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:32:04,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:32:04 BoogieIcfgContainer [2022-11-25 23:32:04,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:32:04,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:32:04,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:32:04,947 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:32:04,947 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:04" (3/4) ... [2022-11-25 23:32:04,950 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:32:04,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:32:04,951 INFO L158 Benchmark]: Toolchain (without parser) took 2737.58ms. Allocated memory is still 190.8MB. Free memory was 157.4MB in the beginning and 90.5MB in the end (delta: 66.9MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2022-11-25 23:32:04,951 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:32:04,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1344.94ms. Allocated memory is still 190.8MB. Free memory was 157.4MB in the beginning and 146.1MB in the end (delta: 11.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:04,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.68ms. Allocated memory is still 190.8MB. Free memory was 146.1MB in the beginning and 142.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:04,953 INFO L158 Benchmark]: Boogie Preprocessor took 44.63ms. Allocated memory is still 190.8MB. Free memory was 142.9MB in the beginning and 141.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:04,954 INFO L158 Benchmark]: RCFGBuilder took 407.96ms. Allocated memory is still 190.8MB. Free memory was 141.9MB in the beginning and 127.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:32:04,954 INFO L158 Benchmark]: TraceAbstraction took 855.17ms. Allocated memory is still 190.8MB. Free memory was 126.2MB in the beginning and 91.5MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 23:32:04,955 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 190.8MB. Free memory was 91.5MB in the beginning and 90.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:32:04,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1344.94ms. Allocated memory is still 190.8MB. Free memory was 157.4MB in the beginning and 146.1MB in the end (delta: 11.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.68ms. Allocated memory is still 190.8MB. Free memory was 146.1MB in the beginning and 142.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.63ms. Allocated memory is still 190.8MB. Free memory was 142.9MB in the beginning and 141.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.96ms. Allocated memory is still 190.8MB. Free memory was 141.9MB in the beginning and 127.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 855.17ms. Allocated memory is still 190.8MB. Free memory was 126.2MB in the beginning and 91.5MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 190.8MB. Free memory was 91.5MB in the beginning and 90.5MB in the end (delta: 1.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1573. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1562] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE190_Integer_Overflow__int_fgets_add_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1571] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1573] data = atoi(inputBuffer) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1580] return data; [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1555] data + 1 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:32:04,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur --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 5bddd5658ff9e2d2e177f124d84485d4ea1933fef16d13d695f9a7ad4ae9fbbf --- 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-38b53e6 [2022-11-25 23:32:07,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:32:07,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:32:07,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:32:07,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:32:07,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:32:07,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:32:07,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:32:07,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:32:07,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:32:07,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:32:07,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:32:07,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:32:07,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:32:07,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:32:07,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:32:07,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:32:07,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:32:07,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:32:07,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:32:07,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:32:07,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:32:07,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:32:07,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:32:07,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:32:07,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:32:07,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:32:07,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:32:07,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:32:07,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:32:07,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:32:07,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:32:07,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:32:07,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:32:07,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:32:07,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:32:07,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:32:07,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:32:07,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:32:07,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:32:07,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:32:07,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:32:07,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:32:07,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:32:07,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:32:07,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:32:07,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:32:07,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:32:07,460 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:32:07,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:32:07,461 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:32:07,461 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:32:07,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:32:07,462 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:32:07,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:32:07,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:32:07,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:32:07,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:32:07,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:32:07,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:32:07,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:32:07,465 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:32:07,465 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:32:07,465 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:32:07,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:32:07,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:32:07,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:32:07,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:32:07,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:32:07,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:32:07,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:32:07,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:32:07,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:32:07,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:32:07,468 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:32:07,468 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:32:07,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:32:07,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:32:07,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:32:07,470 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bddd5658ff9e2d2e177f124d84485d4ea1933fef16d13d695f9a7ad4ae9fbbf [2022-11-25 23:32:07,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:32:07,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:32:07,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:32:07,852 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:32:07,853 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:32:07,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-11-25 23:32:10,866 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:32:11,221 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:32:11,227 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-11-25 23:32:11,256 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/data/e14be472e/14152f1c35004480bc0047f6c137d99f/FLAG9ef8e0129 [2022-11-25 23:32:11,271 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/data/e14be472e/14152f1c35004480bc0047f6c137d99f [2022-11-25 23:32:11,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:32:11,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:32:11,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:32:11,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:32:11,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:32:11,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:32:11" (1/1) ... [2022-11-25 23:32:11,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497b012a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:11, skipping insertion in model container [2022-11-25 23:32:11,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:32:11" (1/1) ... [2022-11-25 23:32:11,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:32:11,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:32:11,876 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:32:12,401 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:32:12,406 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:32:12,410 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:32:12,414 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:32:12,416 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:32:12,445 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:32:12,448 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:32:12,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:32:12,463 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:32:12,481 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:32:12,548 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:32:12,555 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:32:12,558 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:32:12,560 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:32:12,561 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:32:12,564 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:32:12,566 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:32:12,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:32:12,696 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:32:12,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12 WrapperNode [2022-11-25 23:32:12,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:32:12,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:32:12,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:32:12,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:32:12,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,767 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-11-25 23:32:12,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:32:12,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:32:12,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:32:12,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:32:12,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:32:12,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:32:12,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:32:12,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:32:12,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (1/1) ... [2022-11-25 23:32:12,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:32:12,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:32:12,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:32:12,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:32:12,903 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:32:12,903 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:32:12,904 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:32:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:32:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:32:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:32:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:32:12,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:32:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:32:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:32:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 23:32:13,112 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:32:13,114 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:32:13,316 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:32:13,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:32:13,322 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:32:13,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:13 BoogieIcfgContainer [2022-11-25 23:32:13,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:32:13,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:32:13,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:32:13,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:32:13,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:32:11" (1/3) ... [2022-11-25 23:32:13,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d4e391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:32:13, skipping insertion in model container [2022-11-25 23:32:13,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:32:12" (2/3) ... [2022-11-25 23:32:13,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d4e391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:32:13, skipping insertion in model container [2022-11-25 23:32:13,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:13" (3/3) ... [2022-11-25 23:32:13,332 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-11-25 23:32:13,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:32:13,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:32:13,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:32:13,425 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;@3ee476e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:32:13,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:32:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:32:13,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:32:13,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:13,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:32:13,440 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:32:13,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:13,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-11-25 23:32:13,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:32:13,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840655258] [2022-11-25 23:32:13,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:32:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:32:13,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:32:13,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:32:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:13,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:32:13,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:32:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:32:13,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:32:13,634 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:32:13,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840655258] [2022-11-25 23:32:13,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840655258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:13,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:32:13,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:32:13,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636185534] [2022-11-25 23:32:13,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:13,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:32:13,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:32:13,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:32:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:32:13,672 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 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) [2022-11-25 23:32:13,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:13,689 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-25 23:32:13,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:32:13,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 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 [2022-11-25 23:32:13,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:13,698 INFO L225 Difference]: With dead ends: 23 [2022-11-25 23:32:13,698 INFO L226 Difference]: Without dead ends: 15 [2022-11-25 23:32:13,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:32:13,704 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:32:13,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:32:13,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-25 23:32:13,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-25 23:32:13,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2022-11-25 23:32:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-25 23:32:13,737 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-25 23:32:13,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:32:13,738 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-25 23:32:13,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 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) [2022-11-25 23:32:13,738 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-25 23:32:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:32:13,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:13,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:32:13,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-25 23:32:13,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:32:13,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:32:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:13,947 INFO L85 PathProgramCache]: Analyzing trace with hash -509435128, now seen corresponding path program 1 times [2022-11-25 23:32:13,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:32:13,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286597668] [2022-11-25 23:32:13,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:13,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:32:13,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:32:13,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:32:13,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 23:32:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:32:14,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:32:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:32:14,159 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:32:14,160 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:32:14,163 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:32:14,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:32:14,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-25 23:32:14,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:32:14,387 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:32:14,391 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:32:14,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:32:14 BoogieIcfgContainer [2022-11-25 23:32:14,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:32:14,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:32:14,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:32:14,430 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:32:14,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:32:13" (3/4) ... [2022-11-25 23:32:14,435 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:32:14,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:32:14,437 INFO L158 Benchmark]: Toolchain (without parser) took 3157.91ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 35.8MB in the beginning and 50.1MB in the end (delta: -14.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-11-25 23:32:14,443 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 79.7MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:32:14,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1414.99ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 35.4MB in the beginning and 70.1MB in the end (delta: -34.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2022-11-25 23:32:14,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.29ms. Allocated memory is still 104.9MB. Free memory was 69.6MB in the beginning and 67.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:14,445 INFO L158 Benchmark]: Boogie Preprocessor took 32.80ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 64.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:32:14,445 INFO L158 Benchmark]: RCFGBuilder took 521.75ms. Allocated memory is still 104.9MB. Free memory was 64.8MB in the beginning and 50.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:32:14,446 INFO L158 Benchmark]: TraceAbstraction took 1103.13ms. Allocated memory is still 104.9MB. Free memory was 50.2MB in the beginning and 50.1MB in the end (delta: 93.5kB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-25 23:32:14,448 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 104.9MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:32:14,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 79.7MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1414.99ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 35.4MB in the beginning and 70.1MB in the end (delta: -34.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.29ms. Allocated memory is still 104.9MB. Free memory was 69.6MB in the beginning and 67.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.80ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 64.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.75ms. Allocated memory is still 104.9MB. Free memory was 64.8MB in the beginning and 50.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1103.13ms. Allocated memory is still 104.9MB. Free memory was 50.2MB in the beginning and 50.1MB in the end (delta: 93.5kB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 104.9MB. Free memory is still 50.1MB. There was no memory consumed. 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 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1573. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE190_Integer_Overflow__int_fgets_add_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1571] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1573] data = atoi(inputBuffer) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1580] return data; VAL [\old(data)=0, \result=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1555] data + 1 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:32:14,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e747c06-c7b1-409a-aff0-838c0f86b3cb/bin/utaipan-ByfvJB40ur/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: UNKNOWN: Overapproximated counterexample