./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_add_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/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_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_add_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/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_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/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 ac0087c766cc1b03cb6dbeb149b27730aa5d0c1239e40b9fedc40179a0fb039c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:17:02,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:17:02,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:17:02,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:17:02,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:17:02,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:17:02,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:17:02,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:17:02,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:17:02,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:17:02,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:17:02,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:17:02,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:17:02,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:17:02,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:17:02,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:17:02,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:17:02,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:17:02,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:17:02,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:17:02,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:17:02,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:17:02,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:17:02,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:17:02,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:17:02,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:17:02,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:17:02,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:17:02,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:17:02,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:17:02,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:17:02,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:17:02,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:17:02,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:17:02,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:17:02,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:17:02,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:17:02,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:17:02,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:17:02,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:17:02,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:17:02,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:17:02,310 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:17:02,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:17:02,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:17:02,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:17:02,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:17:02,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:17:02,313 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:17:02,313 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:17:02,314 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:17:02,314 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:17:02,315 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:17:02,315 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:17:02,316 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:17:02,316 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:17:02,316 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:17:02,317 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:17:02,317 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:17:02,317 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:17:02,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:17:02,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:17:02,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:17:02,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:17:02,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:17:02,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:17:02,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:17:02,320 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:17:02,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:17:02,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:17:02,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:17:02,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:17:02,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:17:02,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:17:02,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:17:02,322 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:17:02,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:17:02,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:17:02,323 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:17:02,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:17:02,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:17:02,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:17:02,324 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_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac0087c766cc1b03cb6dbeb149b27730aa5d0c1239e40b9fedc40179a0fb039c [2022-11-25 23:17:02,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:17:02,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:17:02,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:17:02,690 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:17:02,691 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:17:02,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_add_08_bad.i [2022-11-25 23:17:05,876 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:17:06,270 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:17:06,270 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_add_08_bad.i [2022-11-25 23:17:06,301 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/data/3c9eb750d/57f08be4a6a54c1b9fc7ab181831922f/FLAG8faf34b07 [2022-11-25 23:17:06,321 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/data/3c9eb750d/57f08be4a6a54c1b9fc7ab181831922f [2022-11-25 23:17:06,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:17:06,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:17:06,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:17:06,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:17:06,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:17:06,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:17:06" (1/1) ... [2022-11-25 23:17:06,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6cba95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:06, skipping insertion in model container [2022-11-25 23:17:06,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:17:06" (1/1) ... [2022-11-25 23:17:06,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:17:06,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:17:06,882 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:17:07,459 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:17:07,465 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:17:07,468 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:17:07,483 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:17:07,484 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:17:07,535 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:17:07,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:17:07,559 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:17:07,602 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:17:07,713 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:17:07,714 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:17:07,716 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:17:07,718 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:17:07,719 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:17:07,724 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:17:07,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:17:07,889 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:17:07,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07 WrapperNode [2022-11-25 23:17:07,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:17:07,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:17:07,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:17:07,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:17:07,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:07,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:07,968 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-11-25 23:17:07,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:17:07,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:17:07,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:17:07,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:17:07,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:07,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:07,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:07,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:07,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:07,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:07,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:08,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:08,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:17:08,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:17:08,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:17:08,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:17:08,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (1/1) ... [2022-11-25 23:17:08,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:17:08,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:17:08,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:17:08,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:17:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:17:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:17:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:17:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:17:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:17:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-11-25 23:17:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-11-25 23:17:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:17:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:17:08,241 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:17:08,244 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:17:08,438 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:17:08,565 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:17:08,565 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:17:08,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:17:08 BoogieIcfgContainer [2022-11-25 23:17:08,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:17:08,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:17:08,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:17:08,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:17:08,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:17:06" (1/3) ... [2022-11-25 23:17:08,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5026284c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:17:08, skipping insertion in model container [2022-11-25 23:17:08,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:17:07" (2/3) ... [2022-11-25 23:17:08,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5026284c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:17:08, skipping insertion in model container [2022-11-25 23:17:08,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:17:08" (3/3) ... [2022-11-25 23:17:08,577 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_rand_add_08_bad.i [2022-11-25 23:17:08,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:17:08,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:17:08,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:17:08,650 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;@2b583a0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:17:08,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:17:08,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 23:17:08,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 23:17:08,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:17:08,664 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:17:08,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:17:08,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:17:08,670 INFO L85 PathProgramCache]: Analyzing trace with hash 251383402, now seen corresponding path program 1 times [2022-11-25 23:17:08,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:17:08,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332109204] [2022-11-25 23:17:08,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:08,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:17:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:09,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 23:17:09,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:17:09,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332109204] [2022-11-25 23:17:09,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332109204] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:17:09,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027445402] [2022-11-25 23:17:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:17:09,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:17:09,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:17:09,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:17:09,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c95cbc-db0b-44ce-94aa-f9303f8d4eb2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:17:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:17:09,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:17:09,665 INFO L286 TraceCheckSpWp]: Computing forward predicates...