./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_09_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3c5b13f3462c1dd603533bd6acd01b05b8e67e197df2d54bbd0b4c9776b5d765 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:18:26,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:18:26,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:18:26,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:18:26,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:18:26,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:18:26,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:18:26,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:18:26,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:18:26,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:18:26,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:18:26,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:18:26,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:18:26,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:18:26,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:18:26,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:18:26,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:18:26,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:18:26,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:18:26,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:18:26,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:18:26,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:18:26,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:18:26,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:18:26,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:18:26,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:18:26,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:18:26,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:18:26,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:18:26,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:18:26,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:18:26,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:18:26,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:18:26,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:18:26,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:18:26,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:18:26,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:18:26,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:18:26,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:18:26,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:18:26,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:18:26,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 09:18:26,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:18:26,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:18:26,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:18:26,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:18:26,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:18:26,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:18:26,248 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:18:26,248 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:18:26,249 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:18:26,249 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:18:26,249 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:18:26,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:18:26,249 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:18:26,249 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:18:26,249 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:18:26,249 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:18:26,250 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:18:26,250 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:18:26,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:18:26,250 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:18:26,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:18:26,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:18:26,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:18:26,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:18:26,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:18:26,251 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:18:26,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:18:26,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:18:26,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:18:26,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:18:26,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:18:26,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:18:26,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:18:26,252 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:18:26,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:18:26,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:18:26,252 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:18:26,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:18:26,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:18:26,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:18:26,253 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_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c5b13f3462c1dd603533bd6acd01b05b8e67e197df2d54bbd0b4c9776b5d765 [2022-12-14 09:18:26,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:18:26,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:18:26,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:18:26,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:18:26,466 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:18:26,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_09_bad.i [2022-12-14 09:18:29,039 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:18:29,323 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:18:29,324 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_09_bad.i [2022-12-14 09:18:29,343 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/data/adc1a73c2/f89d889abe524538b5e1913625e2c843/FLAG335d97689 [2022-12-14 09:18:29,357 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/data/adc1a73c2/f89d889abe524538b5e1913625e2c843 [2022-12-14 09:18:29,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:18:29,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:18:29,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:18:29,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:18:29,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:18:29,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:18:29" (1/1) ... [2022-12-14 09:18:29,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2156d58e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:29, skipping insertion in model container [2022-12-14 09:18:29,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:18:29" (1/1) ... [2022-12-14 09:18:29,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:18:29,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:18:29,713 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:18:30,034 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:18:30,038 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:18:30,040 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:18:30,043 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:18:30,043 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:18:30,066 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:18:30,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:18:30,076 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:18:30,092 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:18:30,136 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:18:30,138 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:18:30,139 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:18:30,141 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:18:30,142 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:18:30,146 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:18:30,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:18:30,249 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:18:30,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30 WrapperNode [2022-12-14 09:18:30,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:18:30,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:18:30,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:18:30,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:18:30,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,289 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 09:18:30,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:18:30,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:18:30,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:18:30,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:18:30,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,305 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:18:30,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:18:30,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:18:30,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:18:30,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (1/1) ... [2022-12-14 09:18:30,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:18:30,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:18:30,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:18:30,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:18:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 09:18:30,363 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 09:18:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:18:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:18:30,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:18:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 09:18:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:18:30,469 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:18:30,470 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:18:30,582 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:18:30,656 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:18:30,656 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:18:30,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:18:30 BoogieIcfgContainer [2022-12-14 09:18:30,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:18:30,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:18:30,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:18:30,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:18:30,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:18:29" (1/3) ... [2022-12-14 09:18:30,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd31b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:18:30, skipping insertion in model container [2022-12-14 09:18:30,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:30" (2/3) ... [2022-12-14 09:18:30,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd31b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:18:30, skipping insertion in model container [2022-12-14 09:18:30,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:18:30" (3/3) ... [2022-12-14 09:18:30,664 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_09_bad.i [2022-12-14 09:18:30,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:18:30,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 09:18:30,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:18:30,722 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;@48582e70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:18:30,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 09:18:30,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:18:30,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:18:30,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:18:30,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:18:30,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:18:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:18:30,739 INFO L85 PathProgramCache]: Analyzing trace with hash 184305098, now seen corresponding path program 1 times [2022-12-14 09:18:30,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:18:30,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502665091] [2022-12-14 09:18:30,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:18:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:18:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:18:30,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:18:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:18:30,950 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:18:30,952 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:18:30,952 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 09:18:30,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 09:18:30,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:18:30,958 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 09:18:30,961 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:18:30,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:18:30 BoogieIcfgContainer [2022-12-14 09:18:30,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:18:30,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:18:30,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:18:30,976 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:18:30,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:18:30" (3/4) ... [2022-12-14 09:18:30,979 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:18:30,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:18:30,980 INFO L158 Benchmark]: Toolchain (without parser) took 1619.63ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 85.2MB in the beginning and 105.4MB in the end (delta: -20.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-12-14 09:18:30,980 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:18:30,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 887.71ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 84.8MB in the beginning and 90.6MB in the end (delta: -5.8MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2022-12-14 09:18:30,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.03ms. Allocated memory is still 148.9MB. Free memory was 90.6MB in the beginning and 87.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:18:30,982 INFO L158 Benchmark]: Boogie Preprocessor took 17.83ms. Allocated memory is still 148.9MB. Free memory was 87.5MB in the beginning and 85.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:18:30,982 INFO L158 Benchmark]: RCFGBuilder took 350.75ms. Allocated memory is still 148.9MB. Free memory was 85.5MB in the beginning and 65.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 09:18:30,982 INFO L158 Benchmark]: TraceAbstraction took 315.91ms. Allocated memory is still 148.9MB. Free memory was 64.5MB in the beginning and 105.4MB in the end (delta: -40.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:18:30,983 INFO L158 Benchmark]: Witness Printer took 3.20ms. Allocated memory is still 148.9MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:18:30,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 887.71ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 84.8MB in the beginning and 90.6MB in the end (delta: -5.8MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.03ms. Allocated memory is still 148.9MB. Free memory was 90.6MB in the beginning and 87.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.83ms. Allocated memory is still 148.9MB. Free memory was 87.5MB in the beginning and 85.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.75ms. Allocated memory is still 148.9MB. Free memory was 85.5MB in the beginning and 65.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 315.91ms. Allocated memory is still 148.9MB. Free memory was 64.5MB in the beginning and 105.4MB in the end (delta: -40.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.20ms. Allocated memory is still 148.9MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=3221225473, argc=3221225473, argv={3221225475:3221225474}, argv={3221225475:3221225474}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_09_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE \read(GLOBAL_CONST_TRUE) [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE \read(GLOBAL_CONST_TRUE) [L1559] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=3221225476] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 09:18:31,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3c5b13f3462c1dd603533bd6acd01b05b8e67e197df2d54bbd0b4c9776b5d765 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:18:32,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:18:32,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:18:32,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:18:32,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:18:32,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:18:32,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:18:32,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:18:32,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:18:32,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:18:32,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:18:32,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:18:32,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:18:32,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:18:32,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:18:32,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:18:32,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:18:32,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:18:32,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:18:32,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:18:32,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:18:32,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:18:32,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:18:32,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:18:32,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:18:32,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:18:32,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:18:32,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:18:32,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:18:32,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:18:32,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:18:32,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:18:32,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:18:32,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:18:32,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:18:32,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:18:32,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:18:32,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:18:32,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:18:32,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:18:32,724 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:18:32,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 09:18:32,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:18:32,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:18:32,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:18:32,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:18:32,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:18:32,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:18:32,750 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:18:32,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:18:32,750 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:18:32,750 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:18:32,750 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:18:32,750 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:18:32,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:18:32,751 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:18:32,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:18:32,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:18:32,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:18:32,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:18:32,752 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:18:32,753 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 09:18:32,753 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:18:32,753 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 09:18:32,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:18:32,753 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:18:32,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:18:32,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:18:32,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 09:18:32,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:18:32,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:18:32,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:18:32,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:18:32,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:18:32,755 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 09:18:32,755 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 09:18:32,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:18:32,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:18:32,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 09:18:32,756 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_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c5b13f3462c1dd603533bd6acd01b05b8e67e197df2d54bbd0b4c9776b5d765 [2022-12-14 09:18:33,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:18:33,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:18:33,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:18:33,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:18:33,046 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:18:33,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_09_bad.i [2022-12-14 09:18:35,614 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:18:35,828 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:18:35,828 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_09_bad.i [2022-12-14 09:18:35,851 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/data/6e25cefb9/76344ddd685b416a8323edee85f26485/FLAGf345411bb [2022-12-14 09:18:35,861 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/data/6e25cefb9/76344ddd685b416a8323edee85f26485 [2022-12-14 09:18:35,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:18:35,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:18:35,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:18:35,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:18:35,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:18:35,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:18:35" (1/1) ... [2022-12-14 09:18:35,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ce5e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:35, skipping insertion in model container [2022-12-14 09:18:35,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:18:35" (1/1) ... [2022-12-14 09:18:35,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:18:35,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:18:36,149 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:18:36,432 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:18:36,437 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:18:36,438 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:18:36,440 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:18:36,441 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:18:36,465 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:18:36,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:18:36,484 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:18:36,501 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:18:36,551 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:18:36,553 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:18:36,554 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:18:36,556 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:18:36,557 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:18:36,562 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:18:36,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:18:36,654 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:18:36,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36 WrapperNode [2022-12-14 09:18:36,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:18:36,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:18:36,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:18:36,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:18:36,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,703 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 09:18:36,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:18:36,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:18:36,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:18:36,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:18:36,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:18:36,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:18:36,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:18:36,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:18:36,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (1/1) ... [2022-12-14 09:18:36,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:18:36,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:18:36,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:18:36,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:18:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 09:18:36,785 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 09:18:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 09:18:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:18:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:18:36,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:18:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 09:18:36,891 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:18:36,892 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:18:37,008 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:18:37,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:18:37,014 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:18:37,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:18:37 BoogieIcfgContainer [2022-12-14 09:18:37,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:18:37,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:18:37,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:18:37,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:18:37,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:18:35" (1/3) ... [2022-12-14 09:18:37,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798c6988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:18:37, skipping insertion in model container [2022-12-14 09:18:37,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:18:36" (2/3) ... [2022-12-14 09:18:37,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798c6988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:18:37, skipping insertion in model container [2022-12-14 09:18:37,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:18:37" (3/3) ... [2022-12-14 09:18:37,024 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_09_bad.i [2022-12-14 09:18:37,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:18:37,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 09:18:37,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:18:37,086 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;@5daf8f36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:18:37,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 09:18:37,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:18:37,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:18:37,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:18:37,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:18:37,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:18:37,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:18:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-14 09:18:37,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:18:37,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112057551] [2022-12-14 09:18:37,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:18:37,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:18:37,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:18:37,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:18:37,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 09:18:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:18:37,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 09:18:37,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:18:37,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:18:37,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:18:37,262 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:18:37,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112057551] [2022-12-14 09:18:37,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112057551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:18:37,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:18:37,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:18:37,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659692695] [2022-12-14 09:18:37,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:18:37,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:18:37,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:18:37,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:18:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:18:37,290 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:18:37,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:18:37,309 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-12-14 09:18:37,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:18:37,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 09:18:37,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:18:37,315 INFO L225 Difference]: With dead ends: 38 [2022-12-14 09:18:37,315 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 09:18:37,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:18:37,320 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:18:37,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:18:37,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 09:18:37,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 09:18:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:18:37,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 09:18:37,344 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-14 09:18:37,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:18:37,344 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 09:18:37,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:18:37,344 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 09:18:37,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:18:37,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:18:37,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:18:37,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:18:37,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:18:37,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:18:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:18:37,550 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-14 09:18:37,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:18:37,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089635944] [2022-12-14 09:18:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:18:37,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:18:37,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:18:37,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 09:18:37,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 09:18:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:18:37,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:18:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:18:37,825 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 09:18:37,826 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:18:37,827 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 09:18:37,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 09:18:37,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-14 09:18:38,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 09:18:38,040 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:18:38,065 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:18:38,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:18:38 BoogieIcfgContainer [2022-12-14 09:18:38,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:18:38,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:18:38,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:18:38,120 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:18:38,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:18:37" (3/4) ... [2022-12-14 09:18:38,123 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 09:18:38,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:18:38,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:18:38,149 INFO L158 Benchmark]: Toolchain (without parser) took 2284.46ms. Allocated memory is still 83.9MB. Free memory was 64.2MB in the beginning and 52.8MB in the end (delta: 11.4MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-12-14 09:18:38,149 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:18:38,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 789.67ms. Allocated memory is still 83.9MB. Free memory was 63.9MB in the beginning and 38.9MB in the end (delta: 25.0MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2022-12-14 09:18:38,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.29ms. Allocated memory is still 83.9MB. Free memory was 38.9MB in the beginning and 36.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:18:38,150 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 83.9MB. Free memory was 36.1MB in the beginning and 57.2MB in the end (delta: -21.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 09:18:38,150 INFO L158 Benchmark]: RCFGBuilder took 287.51ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 43.8MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 09:18:38,150 INFO L158 Benchmark]: TraceAbstraction took 1101.40ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 55.3MB in the end (delta: -11.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-12-14 09:18:38,151 INFO L158 Benchmark]: Witness Printer took 28.34ms. Allocated memory is still 83.9MB. Free memory was 55.3MB in the beginning and 52.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:18:38,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 789.67ms. Allocated memory is still 83.9MB. Free memory was 63.9MB in the beginning and 38.9MB in the end (delta: 25.0MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.29ms. Allocated memory is still 83.9MB. Free memory was 38.9MB in the beginning and 36.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 83.9MB. Free memory was 36.1MB in the beginning and 57.2MB in the end (delta: -21.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 287.51ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 43.8MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1101.40ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 55.3MB in the end (delta: -11.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Witness Printer took 28.34ms. Allocated memory is still 83.9MB. Free memory was 55.3MB in the beginning and 52.8MB in the end (delta: 2.5MB). 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 - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_09_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(GLOBAL_CONST_TRUE) [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=0, rand()=2, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE \read(GLOBAL_CONST_TRUE) [L1559] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 09:18:38,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbf3a2b4-b4b2-4e80-bb9b-f5681183b70e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)