./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_10_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_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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_04ad6694-4041-4784-84ef-395f22b704e9/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 99447df758016b1226a8e61ffa6372b526d7654f10ba3fef78e591eb88093ceb --- 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 01:11:08,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:11:08,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:11:08,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:11:08,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:11:08,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:11:08,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:11:08,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:11:08,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:11:08,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:11:08,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:11:08,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:11:08,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:11:08,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:11:08,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:11:08,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:11:08,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:11:08,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:11:08,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:11:08,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:11:08,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:11:08,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:11:08,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:11:08,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:11:08,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:11:08,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:11:08,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:11:08,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:11:08,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:11:08,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:11:08,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:11:08,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:11:08,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:11:08,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:11:08,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:11:08,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:11:08,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:11:08,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:11:08,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:11:08,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:11:08,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:11:08,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 01:11:08,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:11:08,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:11:08,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:11:08,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:11:08,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:11:08,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:11:08,381 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:11:08,381 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:11:08,381 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:11:08,382 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:11:08,382 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:11:08,382 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:11:08,382 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:11:08,383 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:11:08,383 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:11:08,383 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:11:08,383 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:11:08,384 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:11:08,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:11:08,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:11:08,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:11:08,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:11:08,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:11:08,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:11:08,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:11:08,386 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:11:08,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:11:08,386 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:11:08,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:11:08,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:11:08,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:11:08,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:08,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:11:08,388 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:11:08,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:11:08,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:11:08,388 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:11:08,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:11:08,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:11:08,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:11:08,389 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_04ad6694-4041-4784-84ef-395f22b704e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99447df758016b1226a8e61ffa6372b526d7654f10ba3fef78e591eb88093ceb [2022-11-26 01:11:08,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:11:08,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:11:08,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:11:08,652 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:11:08,653 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:11:08,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_10_bad.i [2022-11-26 01:11:11,674 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:11:12,047 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:11:12,049 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_10_bad.i [2022-11-26 01:11:12,077 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/data/67ccab666/0677a799eb1f4ca3a60f0ce8d9bc4d0c/FLAG04e1d91f0 [2022-11-26 01:11:12,091 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/data/67ccab666/0677a799eb1f4ca3a60f0ce8d9bc4d0c [2022-11-26 01:11:12,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:11:12,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:11:12,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:12,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:11:12,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:11:12,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:12" (1/1) ... [2022-11-26 01:11:12,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8bd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:12, skipping insertion in model container [2022-11-26 01:11:12,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:12" (1/1) ... [2022-11-26 01:11:12,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:11:12,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:11:12,603 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:13,050 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:13,056 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:13,059 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:13,061 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:13,062 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:13,094 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:13,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:13,105 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:11:13,122 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:13,168 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:13,170 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:13,180 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:13,182 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:13,183 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:13,189 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:13,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:13,338 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:11:13,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13 WrapperNode [2022-11-26 01:11:13,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:13,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:13,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:11:13,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:11:13,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,406 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-26 01:11:13,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:13,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:11:13,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:11:13,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:11:13,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:11:13,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:11:13,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:11:13,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:11:13,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:13,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:13,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:11:13,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:11:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:11:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:11:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:11:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:11:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:11:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:11:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:11:13,727 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:11:13,729 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:11:13,885 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:11:14,088 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:11:14,088 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:11:14,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:14 BoogieIcfgContainer [2022-11-26 01:11:14,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:11:14,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:11:14,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:11:14,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:11:14,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:11:12" (1/3) ... [2022-11-26 01:11:14,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cecc2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:14, skipping insertion in model container [2022-11-26 01:11:14,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (2/3) ... [2022-11-26 01:11:14,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cecc2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:14, skipping insertion in model container [2022-11-26 01:11:14,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:14" (3/3) ... [2022-11-26 01:11:14,098 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_10_bad.i [2022-11-26 01:11:14,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:11:14,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:11:14,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:11:14,187 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3615123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:11:14,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:11:14,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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 01:11:14,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 01:11:14,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:14,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:14,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:14,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:14,214 INFO L85 PathProgramCache]: Analyzing trace with hash 184305098, now seen corresponding path program 1 times [2022-11-26 01:11:14,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:14,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592141231] [2022-11-26 01:11:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:14,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:11:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:14,555 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:11:14,557 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:11:14,558 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:11:14,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:11:14,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:11:14,604 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 01:11:14,609 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:11:14,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:11:14 BoogieIcfgContainer [2022-11-26 01:11:14,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:11:14,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:11:14,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:11:14,655 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:11:14,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:14" (3/4) ... [2022-11-26 01:11:14,659 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:11:14,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:11:14,661 INFO L158 Benchmark]: Toolchain (without parser) took 2565.74ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 100.7MB in the beginning and 168.4MB in the end (delta: -67.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:14,661 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory was 52.7MB in the beginning and 52.6MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:14,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1242.90ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 95.7MB in the end (delta: 5.0MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2022-11-26 01:11:14,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.61ms. Allocated memory is still 146.8MB. Free memory was 95.7MB in the beginning and 92.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:14,668 INFO L158 Benchmark]: Boogie Preprocessor took 58.87ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 90.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:14,669 INFO L158 Benchmark]: RCFGBuilder took 624.01ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 70.6MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 01:11:14,670 INFO L158 Benchmark]: TraceAbstraction took 559.54ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 69.9MB in the beginning and 168.4MB in the end (delta: -98.4MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2022-11-26 01:11:14,672 INFO L158 Benchmark]: Witness Printer took 6.13ms. Allocated memory is still 205.5MB. Free memory is still 168.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:14,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory was 52.7MB in the beginning and 52.6MB in the end (delta: 46.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1242.90ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 95.7MB in the end (delta: 5.0MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.61ms. Allocated memory is still 146.8MB. Free memory was 95.7MB in the beginning and 92.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.87ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 90.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.01ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 70.6MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 559.54ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 69.9MB in the beginning and 168.4MB in the end (delta: -98.4MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Witness Printer took 6.13ms. Allocated memory is still 205.5MB. Free memory is still 168.4MB. 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: 1559]: 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); [L1568] 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) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=6442450946, argc=6442450946, argv={6442450948:6442450947}, argv={6442450948:6442450947}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_10_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE \read(globalTrue) [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)) [L1556] COND TRUE \read(globalTrue) VAL [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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=6442450945] [L1559] --data VAL [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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=6442450945] - UnprovableResult [Line: 1559]: 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, 14 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=14occurred 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, 7 NumberOfCodeBlocks, 7 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 01:11:14,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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_04ad6694-4041-4784-84ef-395f22b704e9/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 99447df758016b1226a8e61ffa6372b526d7654f10ba3fef78e591eb88093ceb --- 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 01:11:17,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:11:17,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:11:17,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:11:17,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:11:17,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:11:17,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:11:17,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:11:17,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:11:17,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:11:17,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:11:17,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:11:17,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:11:17,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:11:17,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:11:17,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:11:17,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:11:17,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:11:17,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:11:17,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:11:17,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:11:17,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:11:17,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:11:17,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:11:17,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:11:17,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:11:17,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:11:17,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:11:17,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:11:17,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:11:17,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:11:17,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:11:17,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:11:17,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:11:17,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:11:17,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:11:17,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:11:17,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:11:17,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:11:17,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:11:17,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:11:17,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 01:11:17,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:11:17,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:11:17,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:11:17,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:11:17,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:11:17,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:11:17,417 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:11:17,418 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:11:17,418 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:11:17,418 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:11:17,419 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:11:17,420 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:11:17,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:11:17,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:11:17,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:11:17,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:11:17,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:11:17,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:11:17,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:11:17,423 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:11:17,423 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:11:17,424 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:11:17,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:11:17,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:11:17,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:11:17,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:11:17,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:11:17,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:11:17,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:17,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:11:17,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:11:17,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:11:17,427 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:11:17,428 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:11:17,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:11:17,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:11:17,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:11:17,429 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_04ad6694-4041-4784-84ef-395f22b704e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99447df758016b1226a8e61ffa6372b526d7654f10ba3fef78e591eb88093ceb [2022-11-26 01:11:17,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:11:17,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:11:17,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:11:17,849 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:11:17,849 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:11:17,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_10_bad.i [2022-11-26 01:11:20,982 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:11:21,376 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:11:21,377 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_10_bad.i [2022-11-26 01:11:21,399 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/data/ba5f3f212/79bb29c4b29f428cbc3971cf09527543/FLAG6dc8c9413 [2022-11-26 01:11:21,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/data/ba5f3f212/79bb29c4b29f428cbc3971cf09527543 [2022-11-26 01:11:21,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:11:21,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:11:21,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:21,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:11:21,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:11:21,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:21" (1/1) ... [2022-11-26 01:11:21,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4642a3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:21, skipping insertion in model container [2022-11-26 01:11:21,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:21" (1/1) ... [2022-11-26 01:11:21,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:11:21,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:11:21,976 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:22,443 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:22,449 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:22,451 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:22,454 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:22,455 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:22,480 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:22,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:22,499 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:11:22,540 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:22,618 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:22,629 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:22,631 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:22,636 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:22,637 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:22,645 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:22,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:22,814 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:11:22,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22 WrapperNode [2022-11-26 01:11:22,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:22,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:22,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:11:22,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:11:22,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,885 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-26 01:11:22,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:22,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:11:22,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:11:22,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:11:22,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:11:22,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:11:22,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:11:22,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:11:22,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (1/1) ... [2022-11-26 01:11:22,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:22,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:23,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:11:23,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:11:23,051 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:11:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:11:23,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 01:11:23,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:11:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:11:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:11:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:11:23,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:11:23,317 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:11:23,492 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:11:23,498 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:11:23,498 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:11:23,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:23 BoogieIcfgContainer [2022-11-26 01:11:23,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:11:23,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:11:23,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:11:23,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:11:23,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:11:21" (1/3) ... [2022-11-26 01:11:23,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd402f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:23, skipping insertion in model container [2022-11-26 01:11:23,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:22" (2/3) ... [2022-11-26 01:11:23,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd402f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:23, skipping insertion in model container [2022-11-26 01:11:23,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:23" (3/3) ... [2022-11-26 01:11:23,517 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_10_bad.i [2022-11-26 01:11:23,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:11:23,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:11:23,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:11:23,640 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;@164ef40a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:11:23,640 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:11:23,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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 01:11:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 01:11:23,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:23,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:23,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:23,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:23,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-11-26 01:11:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:11:23,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627697193] [2022-11-26 01:11:23,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:23,685 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 01:11:23,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:11:23,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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 01:11:23,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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 01:11:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:23,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 01:11:23,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:11:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:11:23,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:11:23,970 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:11:23,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627697193] [2022-11-26 01:11:23,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627697193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:11:23,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:11:23,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:11:23,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177930360] [2022-11-26 01:11:23,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:11:23,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:11:23,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:11:24,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:11:24,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:24,058 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 01:11:24,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:24,158 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-26 01:11:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:11:24,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-26 01:11:24,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:24,168 INFO L225 Difference]: With dead ends: 38 [2022-11-26 01:11:24,168 INFO L226 Difference]: Without dead ends: 14 [2022-11-26 01:11:24,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:24,185 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:24,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:11:24,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-26 01:11:24,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-26 01:11:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 01:11:24,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-26 01:11:24,242 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-26 01:11:24,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:24,243 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-26 01:11:24,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 01:11:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-26 01:11:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 01:11:24,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:24,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:24,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-26 01:11:24,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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 01:11:24,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:24,460 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-11-26 01:11:24,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:11:24,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259436672] [2022-11-26 01:11:24,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:24,464 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 01:11:24,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:11:24,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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 01:11:24,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 01:11:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:24,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:11:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:24,604 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 01:11:24,604 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:11:24,606 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:11:24,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:11:24,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 01:11:24,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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 01:11:24,830 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:11:24,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:11:24,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:11:24 BoogieIcfgContainer [2022-11-26 01:11:24,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:11:24,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:11:24,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:11:24,906 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:11:24,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:23" (3/4) ... [2022-11-26 01:11:24,914 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 01:11:24,976 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 01:11:24,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:11:24,977 INFO L158 Benchmark]: Toolchain (without parser) took 3553.79ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.2MB in the beginning and 50.7MB in the end (delta: 3.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-11-26 01:11:24,978 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 35.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:24,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1390.39ms. Allocated memory is still 79.7MB. Free memory was 54.0MB in the beginning and 51.0MB in the end (delta: 3.0MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-26 01:11:24,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.87ms. Allocated memory is still 79.7MB. Free memory was 51.0MB in the beginning and 48.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:24,979 INFO L158 Benchmark]: Boogie Preprocessor took 61.72ms. Allocated memory is still 79.7MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:24,979 INFO L158 Benchmark]: RCFGBuilder took 555.10ms. Allocated memory is still 79.7MB. Free memory was 46.0MB in the beginning and 32.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 01:11:24,980 INFO L158 Benchmark]: TraceAbstraction took 1397.75ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 31.8MB in the beginning and 53.3MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:24,980 INFO L158 Benchmark]: Witness Printer took 70.93ms. Allocated memory is still 96.5MB. Free memory was 52.8MB in the beginning and 50.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:24,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 35.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1390.39ms. Allocated memory is still 79.7MB. Free memory was 54.0MB in the beginning and 51.0MB in the end (delta: 3.0MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.87ms. Allocated memory is still 79.7MB. Free memory was 51.0MB in the beginning and 48.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.72ms. Allocated memory is still 79.7MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.10ms. Allocated memory is still 79.7MB. Free memory was 46.0MB in the beginning and 32.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1397.75ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 31.8MB in the beginning and 53.3MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.93ms. Allocated memory is still 96.5MB. Free memory was 52.8MB in the beginning and 50.7MB in the end (delta: 2.1MB). 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: 1559]: 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] [L1568] 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) [L1568] 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] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_10_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] [L1552] COND TRUE \read(globalTrue) [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()=1, rand()=65536, rand()=0, 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)) [L1556] COND TRUE \read(globalTrue) VAL [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] [L1559] --data VAL [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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 01:11:25,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ad6694-4041-4784-84ef-395f22b704e9/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)