./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a5452b108c7f0f61426de0e0299f4c8f6249a1c631578efbf002f9f7ea1f6e8a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:10:54,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:10:54,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:10:54,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:10:54,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:10:54,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:10:54,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:10:54,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:10:54,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:10:54,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:10:54,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:10:54,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:10:54,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:10:54,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:10:54,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:10:54,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:10:54,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:10:54,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:10:54,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:10:54,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:10:54,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:10:54,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:10:54,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:10:54,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:10:54,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:10:54,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:10:54,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:10:54,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:10:54,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:10:54,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:10:54,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:10:54,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:10:54,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:10:54,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:10:54,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:10:54,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:10:54,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:10:54,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:10:54,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:10:54,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:10:54,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:10:54,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 01:10:54,259 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:10:54,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:10:54,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:10:54,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:10:54,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:10:54,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:10:54,262 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:10:54,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:10:54,263 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:10:54,263 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:10:54,264 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:10:54,264 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:10:54,264 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:10:54,265 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:10:54,265 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:10:54,265 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:10:54,265 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:10:54,266 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:10:54,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:10:54,267 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:10:54,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:10:54,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:10:54,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:10:54,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:10:54,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:10:54,268 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:10:54,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:10:54,268 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:10:54,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:10:54,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:10:54,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:10:54,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:10:54,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:10:54,270 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:10:54,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:10:54,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:10:54,271 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:10:54,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:10:54,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:10:54,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:10:54,272 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_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5452b108c7f0f61426de0e0299f4c8f6249a1c631578efbf002f9f7ea1f6e8a [2022-11-26 01:10:54,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:10:54,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:10:54,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:10:54,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:10:54,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:10:54,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2022-11-26 01:10:58,154 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:10:58,632 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:10:58,633 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2022-11-26 01:10:58,670 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/data/3f6f7bacf/5e6406d2f72842408242cd506e2a6260/FLAGfb192412b [2022-11-26 01:10:58,693 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/data/3f6f7bacf/5e6406d2f72842408242cd506e2a6260 [2022-11-26 01:10:58,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:10:58,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:10:58,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:10:58,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:10:58,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:10:58,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:10:58" (1/1) ... [2022-11-26 01:10:58,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19efb6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:10:58, skipping insertion in model container [2022-11-26 01:10:58,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:10:58" (1/1) ... [2022-11-26 01:10:58,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:10:58,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:10:59,274 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:00,074 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:00,081 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:00,084 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:00,088 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:00,089 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:00,119 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:00,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:00,130 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:11:00,153 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:00,266 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:00,268 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:00,295 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:00,297 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:00,298 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:00,303 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:00,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:00,453 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:11:00,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00 WrapperNode [2022-11-26 01:11:00,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:00,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:00,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:11:00,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:11:00,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,552 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-11-26 01:11:00,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:00,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:11:00,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:11:00,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:11:00,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,610 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:11:00,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:11:00,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:11:00,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:11:00,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (1/1) ... [2022-11-26 01:11:00,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:00,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:00,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:11:00,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:11:00,729 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:11:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:11:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:11:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:11:00,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:11:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:11:00,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:11:00,984 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:11:00,987 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:11:01,241 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:11:01,413 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:11:01,421 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:11:01,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:01 BoogieIcfgContainer [2022-11-26 01:11:01,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:11:01,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:11:01,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:11:01,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:11:01,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:10:58" (1/3) ... [2022-11-26 01:11:01,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be4b4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:01, skipping insertion in model container [2022-11-26 01:11:01,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:00" (2/3) ... [2022-11-26 01:11:01,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be4b4a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:01, skipping insertion in model container [2022-11-26 01:11:01,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:01" (3/3) ... [2022-11-26 01:11:01,438 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2022-11-26 01:11:01,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:11:01,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:11:01,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:11:01,532 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;@62b3396b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:11:01,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:11:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 01:11:01,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 01:11:01,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:01,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 01:11:01,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:01,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:01,563 INFO L85 PathProgramCache]: Analyzing trace with hash -2083453808, now seen corresponding path program 1 times [2022-11-26 01:11:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:01,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786759739] [2022-11-26 01:11:01,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:01,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:01,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:11:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:02,033 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:11:02,038 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:11:02,040 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:11:02,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:11:02,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:11:02,052 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 01:11:02,060 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:11:02,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:11:02 BoogieIcfgContainer [2022-11-26 01:11:02,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:11:02,098 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:11:02,098 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:11:02,099 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:11:02,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:01" (3/4) ... [2022-11-26 01:11:02,107 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:11:02,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:11:02,109 INFO L158 Benchmark]: Toolchain (without parser) took 3407.22ms. Allocated memory is still 159.4MB. Free memory was 112.3MB in the beginning and 100.0MB in the end (delta: 12.2MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-11-26 01:11:02,110 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:02,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1747.36ms. Allocated memory is still 159.4MB. Free memory was 111.9MB in the beginning and 89.4MB in the end (delta: 22.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:02,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.75ms. Allocated memory is still 159.4MB. Free memory was 89.4MB in the beginning and 86.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:11:02,114 INFO L158 Benchmark]: Boogie Preprocessor took 66.08ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 85.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:02,122 INFO L158 Benchmark]: RCFGBuilder took 801.12ms. Allocated memory is still 159.4MB. Free memory was 85.1MB in the beginning and 121.9MB in the end (delta: -36.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 01:11:02,122 INFO L158 Benchmark]: TraceAbstraction took 670.50ms. Allocated memory is still 159.4MB. Free memory was 121.0MB in the beginning and 100.9MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 01:11:02,123 INFO L158 Benchmark]: Witness Printer took 9.57ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 100.0MB in the end (delta: 854.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:02,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1747.36ms. Allocated memory is still 159.4MB. Free memory was 111.9MB in the beginning and 89.4MB in the end (delta: 22.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.75ms. Allocated memory is still 159.4MB. Free memory was 89.4MB in the beginning and 86.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.08ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 85.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 801.12ms. Allocated memory is still 159.4MB. Free memory was 85.1MB in the beginning and 121.9MB in the end (delta: -36.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 670.50ms. Allocated memory is still 159.4MB. Free memory was 121.0MB in the beginning and 100.9MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 9.57ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 100.0MB in the end (delta: 854.8kB). 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: 1558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. 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); [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [\old(argc)=6442450945, argc=6442450945, argv={6442450947:6442450946}, argv={6442450947:6442450946}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_18_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] data-- VAL [data=-2147483648, data--=-2147483648, 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: 1558]: 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 01:11:02,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a5452b108c7f0f61426de0e0299f4c8f6249a1c631578efbf002f9f7ea1f6e8a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:11:04,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:11:04,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:11:04,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:11:04,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:11:04,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:11:04,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:11:04,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:11:04,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:11:04,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:11:04,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:11:04,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:11:04,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:11:04,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:11:04,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:11:04,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:11:05,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:11:05,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:11:05,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:11:05,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:11:05,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:11:05,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:11:05,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:11:05,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:11:05,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:11:05,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:11:05,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:11:05,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:11:05,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:11:05,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:11:05,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:11:05,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:11:05,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:11:05,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:11:05,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:11:05,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:11:05,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:11:05,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:11:05,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:11:05,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:11:05,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:11:05,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 01:11:05,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:11:05,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:11:05,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:11:05,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:11:05,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:11:05,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:11:05,116 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:11:05,116 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:11:05,117 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:11:05,117 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:11:05,118 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:11:05,118 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:11:05,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:11:05,120 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:11:05,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:11:05,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:11:05,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:11:05,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:11:05,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:11:05,121 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:11:05,121 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:11:05,122 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:11:05,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:11:05,122 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:11:05,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:11:05,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:11:05,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:11:05,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:11:05,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:05,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:11:05,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:11:05,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:11:05,125 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:11:05,125 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:11:05,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:11:05,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:11:05,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:11:05,126 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_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5452b108c7f0f61426de0e0299f4c8f6249a1c631578efbf002f9f7ea1f6e8a [2022-11-26 01:11:05,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:11:05,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:11:05,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:11:05,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:11:05,581 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:11:05,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2022-11-26 01:11:08,985 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:11:09,588 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:11:09,589 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2022-11-26 01:11:09,611 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/data/c4078338a/bdde9e30b8324de0b529654e7807053a/FLAGa19d801c9 [2022-11-26 01:11:09,636 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/data/c4078338a/bdde9e30b8324de0b529654e7807053a [2022-11-26 01:11:09,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:11:09,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:11:09,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:09,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:11:09,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:11:09,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:09" (1/1) ... [2022-11-26 01:11:09,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9e5345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:09, skipping insertion in model container [2022-11-26 01:11:09,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:09" (1/1) ... [2022-11-26 01:11:09,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:11:09,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:11:10,323 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:11,030 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:11,037 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:11,039 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:11,045 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:11,046 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:11,078 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:11,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:11,096 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:11:11,120 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:11,177 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:11,178 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:11,180 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:11,182 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:11,183 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:11,188 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:11,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:11,336 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:11:11,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11 WrapperNode [2022-11-26 01:11:11,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:11,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:11,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:11:11,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:11:11,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,429 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-11-26 01:11:11,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:11,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:11:11,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:11:11,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:11:11,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,478 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:11:11,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:11:11,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:11:11,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:11:11,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (1/1) ... [2022-11-26 01:11:11,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:11,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:11,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:11:11,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:11:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:11:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:11:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 01:11:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:11:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:11:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:11:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:11:11,886 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:11:11,888 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:11:12,125 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:11:12,132 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:11:12,132 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:11:12,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:12 BoogieIcfgContainer [2022-11-26 01:11:12,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:11:12,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:11:12,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:11:12,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:11:12,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:11:09" (1/3) ... [2022-11-26 01:11:12,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7067add4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:12, skipping insertion in model container [2022-11-26 01:11:12,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:11" (2/3) ... [2022-11-26 01:11:12,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7067add4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:12, skipping insertion in model container [2022-11-26 01:11:12,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:12" (3/3) ... [2022-11-26 01:11:12,150 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_18_bad.i [2022-11-26 01:11:12,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:11:12,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:11:12,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:11:12,267 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;@7036d6fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:11:12,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:11:12,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 01:11:12,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 01:11:12,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:12,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:12,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:12,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:12,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1419896693, now seen corresponding path program 1 times [2022-11-26 01:11:12,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:11:12,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834589289] [2022-11-26 01:11:12,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:12,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:11:12,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:11:12,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 01:11:12,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 01:11:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:12,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:11:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:12,556 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 01:11:12,558 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:11:12,560 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:11:12,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:11:12,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:11:12,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:11:12,807 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 01:11:12,814 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:11:12,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:11:12 BoogieIcfgContainer [2022-11-26 01:11:12,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:11:12,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:11:12,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:11:12,850 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:11:12,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:12" (3/4) ... [2022-11-26 01:11:12,853 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 01:11:12,906 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 01:11:12,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:11:12,908 INFO L158 Benchmark]: Toolchain (without parser) took 3262.89ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 59.0MB in the beginning and 72.4MB in the end (delta: -13.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-11-26 01:11:12,909 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:12,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1688.16ms. Allocated memory is still 83.9MB. Free memory was 58.8MB in the beginning and 37.8MB in the end (delta: 21.0MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2022-11-26 01:11:12,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.19ms. Allocated memory is still 83.9MB. Free memory was 37.4MB in the beginning and 34.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:12,911 INFO L158 Benchmark]: Boogie Preprocessor took 64.85ms. Allocated memory is still 83.9MB. Free memory was 34.4MB in the beginning and 32.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:12,911 INFO L158 Benchmark]: RCFGBuilder took 638.64ms. Allocated memory is still 83.9MB. Free memory was 32.4MB in the beginning and 45.7MB in the end (delta: -13.4MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:12,912 INFO L158 Benchmark]: TraceAbstraction took 711.68ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 45.3MB in the beginning and 75.1MB in the end (delta: -29.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 01:11:12,913 INFO L158 Benchmark]: Witness Printer took 56.97ms. Allocated memory is still 104.9MB. Free memory was 75.1MB in the beginning and 72.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:12,917 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1688.16ms. Allocated memory is still 83.9MB. Free memory was 58.8MB in the beginning and 37.8MB in the end (delta: 21.0MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.19ms. Allocated memory is still 83.9MB. Free memory was 37.4MB in the beginning and 34.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.85ms. Allocated memory is still 83.9MB. Free memory was 34.4MB in the beginning and 32.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.64ms. Allocated memory is still 83.9MB. Free memory was 32.4MB in the beginning and 45.7MB in the end (delta: -13.4MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * TraceAbstraction took 711.68ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 45.3MB in the beginning and 75.1MB in the end (delta: -29.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 56.97ms. Allocated memory is still 104.9MB. Free memory was 75.1MB in the beginning and 72.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1558]: integer overflow possible integer overflow possible We found a 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] [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_18_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=0, rand()=1, rand()=65536, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] data-- VAL [data=-2147483648, data--=-2147483648, 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: 1558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2022-11-26 01:11:12,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189a838f-37c0-499b-9bdf-71ca365dc4aa/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)