./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_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_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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 a377bfbcc5d1345c9b2331463ab5428defe5d6d47cbd79ed0c8a1d2033e748be --- 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 22:42:26,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:42:26,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:42:26,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:42:26,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:42:26,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:42:26,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:42:26,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:42:26,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:42:26,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:42:26,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:42:26,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:42:26,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:42:26,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:42:26,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:42:26,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:42:26,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:42:26,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:42:26,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:42:26,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:42:26,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:42:26,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:42:26,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:42:26,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:42:26,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:42:26,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:42:26,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:42:26,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:42:26,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:42:26,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:42:26,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:42:26,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:42:26,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:42:26,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:42:26,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:42:26,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:42:26,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:42:26,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:42:26,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:42:26,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:42:26,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:42:26,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 22:42:26,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:42:26,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:42:26,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:42:26,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:42:26,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:42:26,233 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:42:26,233 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:42:26,233 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:42:26,234 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:42:26,234 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:42:26,235 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:42:26,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:42:26,236 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:42:26,236 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:42:26,236 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:42:26,237 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:42:26,237 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:42:26,237 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:42:26,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:42:26,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:42:26,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:42:26,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:42:26,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:42:26,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:42:26,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:42:26,240 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:42:26,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:42:26,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:42:26,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:42:26,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:42:26,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:42:26,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:42:26,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:42:26,243 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:42:26,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:42:26,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:42:26,244 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:42:26,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:42:26,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:42:26,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:42:26,245 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_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a377bfbcc5d1345c9b2331463ab5428defe5d6d47cbd79ed0c8a1d2033e748be [2022-11-25 22:42:26,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:42:26,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:42:26,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:42:26,637 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:42:26,638 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:42:26,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2022-11-25 22:42:29,854 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:42:30,175 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:42:30,176 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2022-11-25 22:42:30,201 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/data/135168104/8208b0edcca94ddaa6b650626a2df5ae/FLAG2de1c8d56 [2022-11-25 22:42:30,217 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/data/135168104/8208b0edcca94ddaa6b650626a2df5ae [2022-11-25 22:42:30,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:42:30,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:42:30,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:42:30,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:42:30,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:42:30,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:42:30" (1/1) ... [2022-11-25 22:42:30,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c08157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:30, skipping insertion in model container [2022-11-25 22:42:30,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:42:30" (1/1) ... [2022-11-25 22:42:30,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:42:30,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:42:30,658 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:42:31,181 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:42:31,187 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:42:31,189 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:42:31,191 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:42:31,192 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:42:31,223 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:42:31,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:42:31,235 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:42:31,272 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:42:31,361 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:42:31,364 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:42:31,366 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:42:31,376 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:42:31,378 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:42:31,385 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:42:31,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:42:31,565 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:42:31,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31 WrapperNode [2022-11-25 22:42:31,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:42:31,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:42:31,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:42:31,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:42:31,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,664 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2022-11-25 22:42:31,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:42:31,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:42:31,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:42:31,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:42:31,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,691 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:42:31,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:42:31,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:42:31,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:42:31,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (1/1) ... [2022-11-25 22:42:31,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:42:31,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:42:31,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:42:31,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:42:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:42:31,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:42:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:42:31,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:42:31,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:42:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:42:31,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:42:32,020 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:42:32,022 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:42:32,247 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:42:32,339 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:42:32,339 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:42:32,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:42:32 BoogieIcfgContainer [2022-11-25 22:42:32,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:42:32,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:42:32,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:42:32,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:42:32,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:42:30" (1/3) ... [2022-11-25 22:42:32,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b92143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:42:32, skipping insertion in model container [2022-11-25 22:42:32,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:31" (2/3) ... [2022-11-25 22:42:32,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b92143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:42:32, skipping insertion in model container [2022-11-25 22:42:32,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:42:32" (3/3) ... [2022-11-25 22:42:32,350 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2022-11-25 22:42:32,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:42:32,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:42:32,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:42:32,441 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;@62c107a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:42:32,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:42:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:42:32,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:42:32,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:32,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:42:32,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:42:32,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:32,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2142650544, now seen corresponding path program 1 times [2022-11-25 22:42:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:42:32,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295821639] [2022-11-25 22:42:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:32,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:42:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:42:32,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:42:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:42:32,912 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:42:32,914 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:42:32,915 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:42:32,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:42:32,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:42:32,923 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:42:32,928 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:42:32,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:42:32 BoogieIcfgContainer [2022-11-25 22:42:32,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:42:32,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:42:32,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:42:32,975 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:42:32,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:42:32" (3/4) ... [2022-11-25 22:42:32,980 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:42:32,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:42:32,982 INFO L158 Benchmark]: Toolchain (without parser) took 2760.63ms. Allocated memory is still 178.3MB. Free memory was 132.5MB in the beginning and 73.9MB in the end (delta: 58.6MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2022-11-25 22:42:32,983 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 134.2MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:42:32,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1345.00ms. Allocated memory is still 178.3MB. Free memory was 132.0MB in the beginning and 121.0MB in the end (delta: 11.0MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2022-11-25 22:42:32,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.14ms. Allocated memory is still 178.3MB. Free memory was 121.0MB in the beginning and 117.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:42:32,986 INFO L158 Benchmark]: Boogie Preprocessor took 25.78ms. Allocated memory is still 178.3MB. Free memory was 117.8MB in the beginning and 115.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:42:32,991 INFO L158 Benchmark]: RCFGBuilder took 646.39ms. Allocated memory is still 178.3MB. Free memory was 115.9MB in the beginning and 97.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 22:42:32,992 INFO L158 Benchmark]: TraceAbstraction took 628.94ms. Allocated memory is still 178.3MB. Free memory was 96.8MB in the beginning and 73.9MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 22:42:32,993 INFO L158 Benchmark]: Witness Printer took 6.43ms. Allocated memory is still 178.3MB. Free memory was 73.9MB in the beginning and 73.9MB in the end (delta: 3.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:42:33,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 134.2MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1345.00ms. Allocated memory is still 178.3MB. Free memory was 132.0MB in the beginning and 121.0MB in the end (delta: 11.0MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.14ms. Allocated memory is still 178.3MB. Free memory was 121.0MB in the beginning and 117.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.78ms. Allocated memory is still 178.3MB. Free memory was 117.8MB in the beginning and 115.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 646.39ms. Allocated memory is still 178.3MB. Free memory was 115.9MB in the beginning and 97.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 628.94ms. Allocated memory is still 178.3MB. Free memory was 96.8MB in the beginning and 73.9MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.43ms. Allocated memory is still 178.3MB. Free memory was 73.9MB in the beginning and 73.9MB in the end (delta: 3.3kB). 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1564, overapproximation of bitwiseAnd at line 1564. 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); [L1548] static int CWE191_Integer_Underflow__int_rand_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, 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) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=6442483713, argc=6442483713, argv={6442483715:6442483714}, argv={6442483715:6442483714}, CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] CWE191_Integer_Underflow__int_rand_predec_45_badData = data [L1566] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_rand_predec_45_badData; VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, 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] [L1555] --data VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:42:33,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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 a377bfbcc5d1345c9b2331463ab5428defe5d6d47cbd79ed0c8a1d2033e748be --- 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 22:42:35,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:42:35,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:42:35,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:42:35,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:42:35,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:42:35,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:42:35,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:42:35,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:42:35,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:42:35,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:42:35,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:42:35,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:42:35,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:42:35,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:42:35,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:42:35,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:42:35,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:42:35,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:42:35,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:42:35,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:42:35,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:42:35,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:42:35,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:42:35,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:42:35,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:42:35,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:42:35,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:42:35,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:42:35,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:42:35,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:42:35,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:42:35,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:42:35,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:42:35,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:42:35,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:42:35,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:42:35,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:42:35,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:42:35,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:42:35,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:42:35,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 22:42:35,732 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:42:35,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:42:35,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:42:35,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:42:35,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:42:35,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:42:35,735 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:42:35,735 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:42:35,735 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:42:35,735 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:42:35,736 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:42:35,736 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:42:35,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:42:35,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:42:35,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:42:35,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:42:35,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:42:35,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:42:35,738 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:42:35,739 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:42:35,739 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:42:35,739 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:42:35,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:42:35,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:42:35,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:42:35,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:42:35,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:42:35,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:42:35,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:42:35,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:42:35,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:42:35,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:42:35,741 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:42:35,742 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:42:35,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:42:35,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:42:35,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:42:35,742 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_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a377bfbcc5d1345c9b2331463ab5428defe5d6d47cbd79ed0c8a1d2033e748be [2022-11-25 22:42:36,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:42:36,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:42:36,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:42:36,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:42:36,158 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:42:36,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2022-11-25 22:42:39,272 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:42:39,649 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:42:39,653 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2022-11-25 22:42:39,688 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/data/bc7d2dc81/5c8e65da537248508312e827922117d0/FLAGf31ee5bd7 [2022-11-25 22:42:39,701 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/data/bc7d2dc81/5c8e65da537248508312e827922117d0 [2022-11-25 22:42:39,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:42:39,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:42:39,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:42:39,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:42:39,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:42:39,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:42:39" (1/1) ... [2022-11-25 22:42:39,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136062f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:39, skipping insertion in model container [2022-11-25 22:42:39,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:42:39" (1/1) ... [2022-11-25 22:42:39,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:42:39,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:42:40,261 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:42:41,047 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:42:41,053 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:42:41,055 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:42:41,063 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:42:41,064 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:42:41,100 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:42:41,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:42:41,123 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:42:41,155 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:42:41,216 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:42:41,218 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:42:41,219 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:42:41,221 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:42:41,222 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:42:41,227 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:42:41,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:42:41,397 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:42:41,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41 WrapperNode [2022-11-25 22:42:41,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:42:41,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:42:41,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:42:41,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:42:41,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,497 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2022-11-25 22:42:41,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:42:41,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:42:41,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:42:41,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:42:41,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:42:41,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:42:41,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:42:41,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:42:41,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (1/1) ... [2022-11-25 22:42:41,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:42:41,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:42:41,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:42:41,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:42:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:42:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:42:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:42:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:42:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:42:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:42:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:42:41,816 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:42:41,818 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:42:41,955 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:42:41,960 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:42:41,960 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:42:41,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:42:41 BoogieIcfgContainer [2022-11-25 22:42:41,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:42:41,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:42:41,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:42:41,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:42:41,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:42:39" (1/3) ... [2022-11-25 22:42:41,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b11e0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:42:41, skipping insertion in model container [2022-11-25 22:42:41,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:42:41" (2/3) ... [2022-11-25 22:42:41,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b11e0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:42:41, skipping insertion in model container [2022-11-25 22:42:41,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:42:41" (3/3) ... [2022-11-25 22:42:41,970 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2022-11-25 22:42:41,989 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:42:41,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:42:42,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:42:42,083 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;@25e1af46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:42:42,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:42:42,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-11-25 22:42:42,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:42:42,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:42,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:42,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:42:42,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:42,102 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2022-11-25 22:42:42,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:42:42,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359079507] [2022-11-25 22:42:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:42,117 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 [2022-11-25 22:42:42,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:42:42,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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) [2022-11-25 22:42:42,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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 [2022-11-25 22:42:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:42:42,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:42:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:42:42,394 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 22:42:42,400 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:42:42,401 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:42:42,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:42:42,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:42,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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 [2022-11-25 22:42:42,627 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:42:42,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:42:42,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:42:42 BoogieIcfgContainer [2022-11-25 22:42:42,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:42:42,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:42:42,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:42:42,685 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:42:42,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:42:41" (3/4) ... [2022-11-25 22:42:42,688 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:42:42,734 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:42:42,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:42:42,735 INFO L158 Benchmark]: Toolchain (without parser) took 3030.44ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 32.5MB in the beginning and 41.6MB in the end (delta: -9.1MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-11-25 22:42:42,736 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:42:42,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1691.71ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 32.0MB in the beginning and 36.5MB in the end (delta: -4.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-11-25 22:42:42,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.70ms. Allocated memory is still 79.7MB. Free memory was 36.5MB in the beginning and 33.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:42:42,738 INFO L158 Benchmark]: Boogie Preprocessor took 74.01ms. Allocated memory is still 79.7MB. Free memory was 33.5MB in the beginning and 53.8MB in the end (delta: -20.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:42:42,739 INFO L158 Benchmark]: RCFGBuilder took 389.45ms. Allocated memory is still 79.7MB. Free memory was 53.8MB in the beginning and 40.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:42:42,739 INFO L158 Benchmark]: TraceAbstraction took 719.67ms. Allocated memory is still 79.7MB. Free memory was 39.9MB in the beginning and 44.1MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:42:42,740 INFO L158 Benchmark]: Witness Printer took 49.59ms. Allocated memory is still 79.7MB. Free memory was 44.1MB in the beginning and 41.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:42:42,743 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1691.71ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 32.0MB in the beginning and 36.5MB in the end (delta: -4.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.70ms. Allocated memory is still 79.7MB. Free memory was 36.5MB in the beginning and 33.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.01ms. Allocated memory is still 79.7MB. Free memory was 33.5MB in the beginning and 53.8MB in the end (delta: -20.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 389.45ms. Allocated memory is still 79.7MB. Free memory was 53.8MB in the beginning and 40.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 719.67ms. Allocated memory is still 79.7MB. Free memory was 39.9MB in the beginning and 44.1MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.59ms. Allocated memory is still 79.7MB. Free memory was 44.1MB in the beginning and 41.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. 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: 1555]: 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); [L1548] static int CWE191_Integer_Underflow__int_rand_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, 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) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, 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()=65535, rand()=0, rand()=0, rand()=32767, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] CWE191_Integer_Underflow__int_rand_predec_45_badData = data [L1566] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_rand_predec_45_badData; VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, 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] [L1555] --data VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, 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: 1555]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 22:42:42,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26f9da3a-2f4b-4e17-b6be-11e0dcc2d4e7/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)