./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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_20f0bf46-6245-4978-8cf1-066ab5194994/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 d0c5194bcdbc4334ef8f15fa14be262c695d88e62204dc921575e1a1f1746219 --- 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 13:32:28,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:32:28,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:32:28,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:32:28,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:32:28,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:32:28,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:32:28,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:32:28,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:32:28,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:32:28,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:32:28,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:32:28,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:32:28,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:32:28,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:32:28,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:32:28,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:32:28,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:32:28,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:32:28,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:32:28,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:32:28,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:32:28,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:32:28,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:32:28,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:32:28,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:32:28,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:32:28,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:32:28,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:32:28,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:32:28,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:32:28,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:32:28,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:32:28,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:32:28,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:32:28,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:32:28,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:32:28,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:32:28,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:32:28,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:32:28,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:32:28,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 13:32:28,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:32:28,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:32:28,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:32:28,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:32:28,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:32:28,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:32:28,424 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:32:28,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:32:28,424 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:32:28,425 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:32:28,425 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:32:28,425 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:32:28,425 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:32:28,425 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:32:28,425 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:32:28,426 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:32:28,426 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:32:28,426 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:32:28,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:32:28,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:32:28,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:32:28,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:32:28,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:32:28,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:32:28,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:32:28,428 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:32:28,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:32:28,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:32:28,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:32:28,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:32:28,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:32:28,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:32:28,430 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_20f0bf46-6245-4978-8cf1-066ab5194994/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0c5194bcdbc4334ef8f15fa14be262c695d88e62204dc921575e1a1f1746219 [2022-12-14 13:32:28,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:32:28,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:32:28,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:32:28,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:32:28,615 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:32:28,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_31_bad.i [2022-12-14 13:32:31,177 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:32:31,381 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:32:31,381 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_31_bad.i [2022-12-14 13:32:31,393 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/data/f09c4ab37/6024016188574ba8bbf2dfe0d9c0396e/FLAG93970d9f8 [2022-12-14 13:32:31,404 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/data/f09c4ab37/6024016188574ba8bbf2dfe0d9c0396e [2022-12-14 13:32:31,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:32:31,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:32:31,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:32:31,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:32:31,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:32:31,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:32:31" (1/1) ... [2022-12-14 13:32:31,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@545d430a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:31, skipping insertion in model container [2022-12-14 13:32:31,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:32:31" (1/1) ... [2022-12-14 13:32:31,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:32:31,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:32:31,687 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:32:31,975 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:32:31,980 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:32:31,981 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:32:31,983 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:32:31,984 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:32:32,005 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:32:32,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:32:32,014 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:32:32,029 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:32:32,061 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:32:32,062 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:32:32,063 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:32:32,065 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:32:32,065 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:32:32,069 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:32:32,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:32:32,181 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:32:32,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32 WrapperNode [2022-12-14 13:32:32,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:32:32,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:32:32,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:32:32,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:32:32,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,223 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 13:32:32,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:32:32,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:32:32,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:32:32,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:32:32,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,239 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:32:32,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:32:32,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:32:32,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:32:32,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (1/1) ... [2022-12-14 13:32:32,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:32:32,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:32,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:32:32,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:32:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:32:32,296 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:32:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:32:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:32:32,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:32:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:32:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:32:32,392 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:32:32,393 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:32:32,504 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:32:32,564 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:32:32,564 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:32:32,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:32 BoogieIcfgContainer [2022-12-14 13:32:32,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:32:32,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:32:32,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:32:32,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:32:32,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:32:31" (1/3) ... [2022-12-14 13:32:32,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778f0aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:32:32, skipping insertion in model container [2022-12-14 13:32:32,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:32" (2/3) ... [2022-12-14 13:32:32,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778f0aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:32:32, skipping insertion in model container [2022-12-14 13:32:32,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:32" (3/3) ... [2022-12-14 13:32:32,574 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_31_bad.i [2022-12-14 13:32:32,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:32:32,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:32:32,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:32:32,625 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;@6b13d42f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:32:32,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:32:32,629 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) [2022-12-14 13:32:32,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:32:32,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:32,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 13:32:32,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:32:32,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:32,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2064490869, now seen corresponding path program 1 times [2022-12-14 13:32:32,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:32:32,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251325670] [2022-12-14 13:32:32,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:32,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:32:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:32:32,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:32:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:32:32,878 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:32:32,880 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:32:32,881 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:32:32,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:32:32,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:32:32,889 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 13:32:32,893 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:32:32,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:32:32 BoogieIcfgContainer [2022-12-14 13:32:32,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:32:32,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:32:32,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:32:32,915 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:32:32,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:32" (3/4) ... [2022-12-14 13:32:32,918 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:32:32,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:32:32,919 INFO L158 Benchmark]: Toolchain (without parser) took 1512.18ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 82.1MB in the beginning and 66.0MB in the end (delta: 16.1MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-12-14 13:32:32,920 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:32:32,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 773.70ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 81.7MB in the beginning and 111.8MB in the end (delta: -30.1MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2022-12-14 13:32:32,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.40ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 108.0MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:32:32,922 INFO L158 Benchmark]: Boogie Preprocessor took 17.60ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 106.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:32:32,922 INFO L158 Benchmark]: RCFGBuilder took 324.60ms. Allocated memory is still 159.4MB. Free memory was 106.8MB in the beginning and 88.8MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 13:32:32,923 INFO L158 Benchmark]: TraceAbstraction took 345.15ms. Allocated memory is still 159.4MB. Free memory was 87.9MB in the beginning and 66.0MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 13:32:32,923 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 159.4MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:32:32,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 773.70ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 81.7MB in the beginning and 111.8MB in the end (delta: -30.1MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.40ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 108.0MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.60ms. Allocated memory is still 159.4MB. Free memory was 108.0MB in the beginning and 106.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 324.60ms. Allocated memory is still 159.4MB. Free memory was 106.8MB in the beginning and 88.8MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 345.15ms. Allocated memory is still 159.4MB. Free memory was 87.9MB in the beginning and 66.0MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 159.4MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1552, overapproximation of bitwiseAnd at line 1552. 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)=2147483648, argc=2147483648, argv={2147483650:2147483649}, argv={2147483650:2147483649}, 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_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; [L1557] data-- VAL [data=-2147483648, data=-2147483648, data--=-2147483648, dataCopy=-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: 1557]: 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: 0.3s, 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 [2022-12-14 13:32:32,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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_20f0bf46-6245-4978-8cf1-066ab5194994/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 d0c5194bcdbc4334ef8f15fa14be262c695d88e62204dc921575e1a1f1746219 --- 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 13:32:34,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:32:34,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:32:34,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:32:34,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:32:34,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:32:34,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:32:34,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:32:34,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:32:34,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:32:34,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:32:34,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:32:34,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:32:34,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:32:34,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:32:34,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:32:34,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:32:34,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:32:34,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:32:34,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:32:34,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:32:34,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:32:34,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:32:34,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:32:34,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:32:34,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:32:34,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:32:34,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:32:34,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:32:34,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:32:34,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:32:34,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:32:34,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:32:34,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:32:34,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:32:34,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:32:34,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:32:34,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:32:34,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:32:34,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:32:34,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:32:34,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 13:32:34,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:32:34,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:32:34,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:32:34,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:32:34,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:32:34,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:32:34,572 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:32:34,572 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:32:34,572 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:32:34,572 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:32:34,573 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:32:34,573 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:32:34,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:32:34,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:32:34,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:32:34,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:32:34,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:32:34,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:32:34,575 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:32:34,575 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:32:34,575 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:32:34,575 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:32:34,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:32:34,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:32:34,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:32:34,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:32:34,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:32:34,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:32:34,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:32:34,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:32:34,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:32:34,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:32:34,582 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:32:34,583 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:32:34,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:32:34,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:32:34,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:32:34,583 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_20f0bf46-6245-4978-8cf1-066ab5194994/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0c5194bcdbc4334ef8f15fa14be262c695d88e62204dc921575e1a1f1746219 [2022-12-14 13:32:34,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:32:34,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:32:34,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:32:34,835 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:32:34,835 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:32:34,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_31_bad.i [2022-12-14 13:32:37,425 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:32:37,634 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:32:37,634 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_31_bad.i [2022-12-14 13:32:37,648 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/data/7ffcad162/1af0b5350f4a438ebe12274eeb81fe28/FLAG71b05ba18 [2022-12-14 13:32:37,974 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/data/7ffcad162/1af0b5350f4a438ebe12274eeb81fe28 [2022-12-14 13:32:37,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:32:37,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:32:37,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:32:37,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:32:37,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:32:37,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:32:37" (1/1) ... [2022-12-14 13:32:37,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cb8679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:37, skipping insertion in model container [2022-12-14 13:32:37,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:32:37" (1/1) ... [2022-12-14 13:32:37,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:32:38,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:32:38,234 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:32:38,552 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:32:38,555 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:32:38,557 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:32:38,559 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:32:38,559 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:32:38,579 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:32:38,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:32:38,592 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:32:38,608 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:32:38,654 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:32:38,655 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:32:38,656 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:32:38,658 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:32:38,658 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:32:38,661 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:32:38,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:32:38,750 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:32:38,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38 WrapperNode [2022-12-14 13:32:38,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:32:38,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:32:38,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:32:38,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:32:38,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,798 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 13:32:38,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:32:38,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:32:38,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:32:38,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:32:38,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:32:38,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:32:38,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:32:38,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:32:38,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (1/1) ... [2022-12-14 13:32:38,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:32:38,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:32:38,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:32:38,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:32:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:32:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:32:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:32:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:32:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:32:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:32:38,874 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:32:38,978 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:32:38,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:32:39,078 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:32:39,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:32:39,082 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:32:39,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:39 BoogieIcfgContainer [2022-12-14 13:32:39,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:32:39,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:32:39,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:32:39,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:32:39,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:32:37" (1/3) ... [2022-12-14 13:32:39,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c72dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:32:39, skipping insertion in model container [2022-12-14 13:32:39,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:32:38" (2/3) ... [2022-12-14 13:32:39,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c72dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:32:39, skipping insertion in model container [2022-12-14 13:32:39,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:39" (3/3) ... [2022-12-14 13:32:39,090 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_31_bad.i [2022-12-14 13:32:39,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:32:39,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:32:39,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:32:39,146 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;@32d2bddc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:32:39,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:32:39,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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 13:32:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:32:39,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:32:39,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:32:39,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:32:39,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:32:39,158 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2022-12-14 13:32:39,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:32:39,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977470185] [2022-12-14 13:32:39,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:32:39,168 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 13:32:39,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:32:39,169 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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 13:32:39,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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 13:32:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:32:39,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:32:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:32:39,305 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:32:39,306 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:32:39,307 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:32:39,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:32:39,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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 13:32:39,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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 13:32:39,516 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 13:32:39,522 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:32:39,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:32:39 BoogieIcfgContainer [2022-12-14 13:32:39,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:32:39,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:32:39,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:32:39,571 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:32:39,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:32:39" (3/4) ... [2022-12-14 13:32:39,578 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 13:32:39,697 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:32:39,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:32:39,698 INFO L158 Benchmark]: Toolchain (without parser) took 1721.09ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 42.1MB in the beginning and 54.9MB in the end (delta: -12.7MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-12-14 13:32:39,699 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:32:39,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 773.55ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 42.0MB in the beginning and 55.6MB in the end (delta: -13.6MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-12-14 13:32:39,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.37ms. Allocated memory is still 83.9MB. Free memory was 55.6MB in the beginning and 52.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:32:39,711 INFO L158 Benchmark]: Boogie Preprocessor took 22.69ms. Allocated memory is still 83.9MB. Free memory was 52.3MB in the beginning and 50.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:32:39,712 INFO L158 Benchmark]: RCFGBuilder took 262.02ms. Allocated memory is still 83.9MB. Free memory was 50.6MB in the beginning and 37.2MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:32:39,712 INFO L158 Benchmark]: TraceAbstraction took 483.82ms. Allocated memory is still 83.9MB. Free memory was 36.4MB in the beginning and 41.3MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:32:39,713 INFO L158 Benchmark]: Witness Printer took 126.46ms. Allocated memory is still 83.9MB. Free memory was 41.3MB in the beginning and 54.9MB in the end (delta: -13.5MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-12-14 13:32:39,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 773.55ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 42.0MB in the beginning and 55.6MB in the end (delta: -13.6MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.37ms. Allocated memory is still 83.9MB. Free memory was 55.6MB in the beginning and 52.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.69ms. Allocated memory is still 83.9MB. Free memory was 52.3MB in the beginning and 50.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 262.02ms. Allocated memory is still 83.9MB. Free memory was 50.6MB in the beginning and 37.2MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 483.82ms. Allocated memory is still 83.9MB. Free memory was 36.4MB in the beginning and 41.3MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 126.46ms. Allocated memory is still 83.9MB. Free memory was 41.3MB in the beginning and 54.9MB in the end (delta: -13.5MB). Peak memory consumption was 2.8MB. 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: 1557]: 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_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] 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()=1, rand()=32767, rand()=0, rand()=32767, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; [L1557] data-- VAL [data=-2147483648, data=-2147483648, data--=-2147483648, dataCopy=-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: 1557]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=21occurred 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, 11 NumberOfCodeBlocks, 11 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! [2022-12-14 13:32:39,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20f0bf46-6245-4978-8cf1-066ab5194994/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)