./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c01bf64283f24db5109bd67f2495754004ac7861f5a753a7a5eef8291688cf79 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:55:52,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:55:52,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:55:52,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:55:52,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:55:52,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:55:52,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:55:52,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:55:52,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:55:52,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:55:52,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:55:52,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:55:52,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:55:52,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:55:52,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:55:52,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:55:52,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:55:52,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:55:52,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:55:52,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:55:52,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:55:52,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:55:52,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:55:52,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:55:52,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:55:52,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:55:52,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:55:52,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:55:52,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:55:52,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:55:52,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:55:52,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:55:52,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:55:52,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:55:52,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:55:52,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:55:52,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:55:52,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:55:52,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:55:52,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:55:52,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:55:52,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 13:55:52,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:55:52,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:55:52,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:55:52,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:55:52,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:55:52,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:55:52,225 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:55:52,225 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:55:52,225 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:55:52,226 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:55:52,226 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:55:52,226 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:55:52,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:55:52,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:55:52,226 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:55:52,227 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:55:52,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:55:52,227 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:55:52,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:55:52,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:55:52,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:55:52,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:55:52,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:55:52,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:55:52,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:55:52,228 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:55:52,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:55:52,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:55:52,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:55:52,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:55:52,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:55:52,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:55:52,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:55:52,229 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:55:52,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:55:52,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:55:52,230 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:55:52,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:55:52,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:55:52,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:55:52,230 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_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c01bf64283f24db5109bd67f2495754004ac7861f5a753a7a5eef8291688cf79 [2022-12-14 13:55:52,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:55:52,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:55:52,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:55:52,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:55:52,439 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:55:52,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i [2022-12-14 13:55:55,007 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:55:55,250 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:55:55,251 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i [2022-12-14 13:55:55,263 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/data/9b15bc604/2903f2a929954be3b28d39ebcd4d4a26/FLAG3ac97788c [2022-12-14 13:55:55,566 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/data/9b15bc604/2903f2a929954be3b28d39ebcd4d4a26 [2022-12-14 13:55:55,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:55:55,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:55:55,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:55:55,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:55:55,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:55:55,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:55:55" (1/1) ... [2022-12-14 13:55:55,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfa26cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:55, skipping insertion in model container [2022-12-14 13:55:55,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:55:55" (1/1) ... [2022-12-14 13:55:55,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:55:55,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:55:55,832 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:55:56,130 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:55:56,134 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:55:56,136 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:55:56,137 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:55:56,138 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:55:56,156 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:55:56,158 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:55:56,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:55:56,169 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:55:56,183 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:55:56,216 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:55:56,217 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:55:56,218 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:55:56,220 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:55:56,220 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:55:56,223 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:55:56,225 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:55:56,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:55:56,302 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:55:56,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56 WrapperNode [2022-12-14 13:55:56,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:55:56,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:55:56,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:55:56,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:55:56,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,337 INFO L138 Inliner]: procedures = 501, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-14 13:55:56,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:55:56,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:55:56,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:55:56,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:55:56,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:55:56,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:55:56,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:55:56,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:55:56,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (1/1) ... [2022-12-14 13:55:56,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:55:56,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:55:56,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:55:56,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:55:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 13:55:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:55:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:55:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:55:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 13:55:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:55:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:55:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:55:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:55:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:55:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:55:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:55:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:55:56,508 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:55:56,509 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:55:56,616 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:55:56,638 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:55:56,639 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:55:56,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:55:56 BoogieIcfgContainer [2022-12-14 13:55:56,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:55:56,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:55:56,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:55:56,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:55:56,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:55:55" (1/3) ... [2022-12-14 13:55:56,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c185e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:55:56, skipping insertion in model container [2022-12-14 13:55:56,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:55:56" (2/3) ... [2022-12-14 13:55:56,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c185e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:55:56, skipping insertion in model container [2022-12-14 13:55:56,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:55:56" (3/3) ... [2022-12-14 13:55:56,654 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i [2022-12-14 13:55:56,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:55:56,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:55:56,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:55:56,719 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;@44b5add0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:55:56,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:55:56,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-12-14 13:55:56,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 13:55:56,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:55:56,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:55:56,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:55:56,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:55:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1767842661, now seen corresponding path program 1 times [2022-12-14 13:55:56,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:55:56,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128992944] [2022-12-14 13:55:56,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:55:56,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:55:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:55:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:55:56,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:55:56,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128992944] [2022-12-14 13:55:56,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128992944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:55:56,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:55:56,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:55:56,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413484512] [2022-12-14 13:55:56,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:55:56,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:55:56,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:55:56,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:55:56,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:55:56,966 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:55:56,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:55:56,998 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-14 13:55:56,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:55:57,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-12-14 13:55:57,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:55:57,005 INFO L225 Difference]: With dead ends: 21 [2022-12-14 13:55:57,005 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 13:55:57,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:55:57,009 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:55:57,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:55:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 13:55:57,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 13:55:57,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 13:55:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 13:55:57,036 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-12-14 13:55:57,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:55:57,037 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 13:55:57,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:55:57,037 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 13:55:57,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:55:57,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:55:57,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:55:57,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:55:57,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:55:57,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:55:57,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1031452300, now seen corresponding path program 1 times [2022-12-14 13:55:57,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:55:57,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827684880] [2022-12-14 13:55:57,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:55:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:55:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:55:57,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:55:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:55:57,126 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:55:57,126 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:55:57,128 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:55:57,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:55:57,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:55:57,134 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:55:57,137 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:55:57,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:55:57 BoogieIcfgContainer [2022-12-14 13:55:57,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:55:57,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:55:57,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:55:57,155 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:55:57,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:55:56" (3/4) ... [2022-12-14 13:55:57,157 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:55:57,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:55:57,158 INFO L158 Benchmark]: Toolchain (without parser) took 1589.06ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 107.1MB in the beginning and 98.5MB in the end (delta: 8.6MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2022-12-14 13:55:57,158 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 102.8MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:55:57,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 732.83ms. Allocated memory is still 140.5MB. Free memory was 106.7MB in the beginning and 82.6MB in the end (delta: 24.1MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2022-12-14 13:55:57,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.63ms. Allocated memory is still 140.5MB. Free memory was 82.6MB in the beginning and 79.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:55:57,159 INFO L158 Benchmark]: Boogie Preprocessor took 16.80ms. Allocated memory is still 140.5MB. Free memory was 79.8MB in the beginning and 78.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:55:57,160 INFO L158 Benchmark]: RCFGBuilder took 285.43ms. Allocated memory is still 140.5MB. Free memory was 78.4MB in the beginning and 62.4MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:55:57,160 INFO L158 Benchmark]: TraceAbstraction took 506.63ms. Allocated memory is still 169.9MB. Free memory was 135.2MB in the beginning and 98.5MB in the end (delta: 36.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-14 13:55:57,160 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 169.9MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:55:57,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 102.8MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 732.83ms. Allocated memory is still 140.5MB. Free memory was 106.7MB in the beginning and 82.6MB in the end (delta: 24.1MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.63ms. Allocated memory is still 140.5MB. Free memory was 82.6MB in the beginning and 79.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.80ms. Allocated memory is still 140.5MB. Free memory was 79.8MB in the beginning and 78.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.43ms. Allocated memory is still 140.5MB. Free memory was 78.4MB in the beginning and 62.4MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 506.63ms. Allocated memory is still 169.9MB. Free memory was 135.2MB in the beginning and 98.5MB in the end (delta: 36.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 169.9MB. Free memory is still 98.5MB. 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); [L1569] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741831:1073741829}, argv={1073741831:1073741829}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1577] COND TRUE data > 0 VAL [data=1073741824, dataPtr={7:0}, dataPtr={7:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] data * 2 VAL [data=1073741824, dataPtr={7:0}, dataPtr={7:0}, 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: 1579]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 15 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=17occurred 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, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2022-12-14 13:55:57,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c01bf64283f24db5109bd67f2495754004ac7861f5a753a7a5eef8291688cf79 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:55:58,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:55:58,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:55:58,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:55:58,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:55:58,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:55:58,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:55:58,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:55:58,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:55:58,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:55:58,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:55:58,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:55:58,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:55:58,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:55:58,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:55:58,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:55:58,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:55:58,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:55:58,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:55:58,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:55:58,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:55:58,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:55:58,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:55:58,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:55:58,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:55:58,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:55:58,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:55:58,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:55:58,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:55:58,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:55:58,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:55:58,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:55:58,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:55:58,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:55:58,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:55:58,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:55:58,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:55:58,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:55:58,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:55:58,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:55:58,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:55:58,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 13:55:58,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:55:58,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:55:58,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:55:58,965 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:55:58,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:55:58,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:55:58,966 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:55:58,966 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:55:58,966 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:55:58,966 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:55:58,967 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:55:58,967 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:55:58,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:55:58,968 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:55:58,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:55:58,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:55:58,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:55:58,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:55:58,968 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:55:58,968 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:55:58,969 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:55:58,969 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:55:58,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:55:58,969 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:55:58,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:55:58,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:55:58,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:55:58,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:55:58,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:55:58,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:55:58,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:55:58,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:55:58,971 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:55:58,971 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:55:58,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:55:58,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:55:58,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:55:58,971 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_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c01bf64283f24db5109bd67f2495754004ac7861f5a753a7a5eef8291688cf79 [2022-12-14 13:55:59,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:55:59,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:55:59,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:55:59,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:55:59,227 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:55:59,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i [2022-12-14 13:56:01,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:56:02,122 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:56:02,122 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i [2022-12-14 13:56:02,141 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/data/fd02e4db8/736f34c082574c0a8417e5baec715782/FLAG19ffa8c75 [2022-12-14 13:56:02,154 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/data/fd02e4db8/736f34c082574c0a8417e5baec715782 [2022-12-14 13:56:02,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:56:02,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:56:02,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:56:02,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:56:02,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:56:02,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:56:02" (1/1) ... [2022-12-14 13:56:02,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26782182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:02, skipping insertion in model container [2022-12-14 13:56:02,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:56:02" (1/1) ... [2022-12-14 13:56:02,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:56:02,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:56:02,512 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:56:02,823 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:56:02,827 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:56:02,828 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:56:02,830 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:56:02,831 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:56:02,848 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:56:02,851 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:56:02,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:56:02,868 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:56:02,884 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:56:02,931 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:56:02,933 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:56:02,934 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:56:02,936 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:56:02,936 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:56:02,940 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:56:02,942 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:56:02,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:56:03,027 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:56:03,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03 WrapperNode [2022-12-14 13:56:03,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:56:03,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:56:03,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:56:03,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:56:03,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,079 INFO L138 Inliner]: procedures = 506, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-12-14 13:56:03,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:56:03,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:56:03,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:56:03,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:56:03,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,105 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:56:03,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:56:03,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:56:03,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:56:03,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (1/1) ... [2022-12-14 13:56:03,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:56:03,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:56:03,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:56:03,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:56:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 13:56:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:56:03,180 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:56:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:56:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:56:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:56:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:56:03,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:56:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 13:56:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:56:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 13:56:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:56:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 13:56:03,301 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:56:03,302 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:56:03,458 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:56:03,464 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:56:03,464 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:56:03,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:03 BoogieIcfgContainer [2022-12-14 13:56:03,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:56:03,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:56:03,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:56:03,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:56:03,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:56:02" (1/3) ... [2022-12-14 13:56:03,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0580d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:56:03, skipping insertion in model container [2022-12-14 13:56:03,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:03" (2/3) ... [2022-12-14 13:56:03,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0580d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:56:03, skipping insertion in model container [2022-12-14 13:56:03,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:03" (3/3) ... [2022-12-14 13:56:03,474 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_63_bad.i [2022-12-14 13:56:03,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:56:03,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:56:03,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:56:03,544 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;@1f7ef199, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:56:03,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:56:03,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-12-14 13:56:03,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:56:03,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:56:03,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:56:03,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:56:03,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:56:03,559 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-14 13:56:03,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:56:03,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430521798] [2022-12-14 13:56:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:03,570 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 [2022-12-14 13:56:03,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:56:03,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/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) [2022-12-14 13:56:03,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:56:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:56:03,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 13:56:03,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:56:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:56:03,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:56:03,717 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:56:03,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430521798] [2022-12-14 13:56:03,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430521798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:56:03,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:56:03,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:56:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709118185] [2022-12-14 13:56:03,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:56:03,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:56:03,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:56:03,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:56:03,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:56:03,753 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:56:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:56:03,784 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-12-14 13:56:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:56:03,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-14 13:56:03,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:56:03,792 INFO L225 Difference]: With dead ends: 31 [2022-12-14 13:56:03,792 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 13:56:03,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:56:03,797 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:56:03,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 49 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:56:03,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 13:56:03,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 13:56:03,821 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) [2022-12-14 13:56:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-14 13:56:03,823 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-14 13:56:03,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:56:03,824 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-14 13:56:03,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:56:03,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 13:56:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 13:56:03,825 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:56:03,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:56:03,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 13:56:04,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:56:04,027 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:56:04,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:56:04,028 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-12-14 13:56:04,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:56:04,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988586339] [2022-12-14 13:56:04,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:04,028 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 [2022-12-14 13:56:04,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:56:04,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/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) [2022-12-14 13:56:04,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:56:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:56:04,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:56:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:56:04,271 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:56:04,271 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:56:04,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:56:04,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:56:04,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:56:04,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/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 [2022-12-14 13:56:04,486 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:56:04,495 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:56:04,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:56:04 BoogieIcfgContainer [2022-12-14 13:56:04,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:56:04,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:56:04,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:56:04,558 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:56:04,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:03" (3/4) ... [2022-12-14 13:56:04,562 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:56:04,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:56:04,563 INFO L158 Benchmark]: Toolchain (without parser) took 2405.06ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.3MB in the beginning and 36.1MB in the end (delta: 18.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-12-14 13:56:04,564 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 30.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:56:04,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 868.40ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.1MB in the beginning and 67.0MB in the end (delta: -12.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2022-12-14 13:56:04,565 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.68ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 63.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:56:04,566 INFO L158 Benchmark]: Boogie Preprocessor took 29.85ms. Allocated memory is still 96.5MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:56:04,566 INFO L158 Benchmark]: RCFGBuilder took 355.16ms. Allocated memory is still 96.5MB. Free memory was 61.7MB in the beginning and 46.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:56:04,567 INFO L158 Benchmark]: TraceAbstraction took 1088.95ms. Allocated memory is still 96.5MB. Free memory was 46.1MB in the beginning and 36.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-12-14 13:56:04,567 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 96.5MB. Free memory was 36.8MB in the beginning and 36.1MB in the end (delta: 632.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:56:04,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 30.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 868.40ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.1MB in the beginning and 67.0MB in the end (delta: -12.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.68ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 63.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.85ms. Allocated memory is still 96.5MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.16ms. Allocated memory is still 96.5MB. Free memory was 61.7MB in the beginning and 46.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1088.95ms. Allocated memory is still 96.5MB. Free memory was 46.1MB in the beginning and 36.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 96.5MB. Free memory was 36.8MB in the beginning and 36.1MB in the end (delta: 632.6kB). 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] 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] [L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1577] COND TRUE data > 0 VAL [data=1073741824, dataPtr={7:0}, dataPtr={7:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] data * 2 VAL [data=1073741824, dataPtr={7:0}, dataPtr={7:0}, 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: 1579]: 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, 24 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, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 2 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 [2022-12-14 13:56:04,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f17089-d856-4a03-867a-69cb4dce2cc1/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample