./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_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_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/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_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/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_b663b423-9cb6-4bd0-9186-f4be5313410a/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 60b897a9b8008c7524cfef24ffa178aee0cbd081acd52e3ed30a07a76c5ae5b7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:16:36,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:16:36,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:16:36,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:16:36,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:16:36,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:16:36,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:16:36,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:16:36,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:16:36,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:16:36,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:16:36,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:16:36,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:16:36,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:16:36,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:16:36,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:16:36,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:16:36,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:16:36,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:16:36,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:16:36,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:16:36,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:16:36,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:16:36,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:16:36,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:16:36,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:16:36,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:16:36,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:16:36,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:16:36,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:16:36,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:16:36,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:16:36,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:16:36,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:16:36,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:16:36,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:16:36,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:16:36,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:16:36,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:16:36,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:16:36,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:16:36,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:16:36,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:16:36,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:16:36,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:16:36,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:16:36,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:16:36,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:16:36,189 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:16:36,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:16:36,190 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:16:36,190 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:16:36,191 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:16:36,191 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:16:36,192 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:16:36,192 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:16:36,193 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:16:36,193 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:16:36,193 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:16:36,194 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:16:36,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:16:36,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:16:36,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:16:36,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:16:36,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:16:36,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:16:36,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:16:36,197 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:16:36,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:16:36,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:16:36,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:16:36,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:16:36,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:16:36,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:16:36,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:16:36,200 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:16:36,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:16:36,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:16:36,201 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:16:36,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:16:36,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:16:36,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:16:36,202 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_b663b423-9cb6-4bd0-9186-f4be5313410a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b897a9b8008c7524cfef24ffa178aee0cbd081acd52e3ed30a07a76c5ae5b7 [2022-11-26 00:16:36,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:16:36,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:16:36,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:16:36,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:16:36,505 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:16:36,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-26 00:16:39,505 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:16:39,881 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:16:39,884 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-26 00:16:39,909 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/data/1a040d304/dab6a5ad772340f9bf90998199b8076e/FLAG775631f11 [2022-11-26 00:16:39,923 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/data/1a040d304/dab6a5ad772340f9bf90998199b8076e [2022-11-26 00:16:39,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:16:39,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:16:39,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:16:39,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:16:39,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:16:39,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:16:39" (1/1) ... [2022-11-26 00:16:39,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a09e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:39, skipping insertion in model container [2022-11-26 00:16:39,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:16:39" (1/1) ... [2022-11-26 00:16:39,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:16:40,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:16:40,390 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:16:40,943 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:16:40,949 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:16:40,951 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:16:40,954 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:16:40,955 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:16:40,984 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:16:40,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:16:40,996 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:16:41,015 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:16:41,060 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:16:41,062 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:16:41,064 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:16:41,066 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:16:41,067 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:16:41,073 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:16:41,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:16:41,183 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:16:41,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41 WrapperNode [2022-11-26 00:16:41,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:16:41,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:16:41,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:16:41,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:16:41,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,256 INFO L138 Inliner]: procedures = 499, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2022-11-26 00:16:41,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:16:41,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:16:41,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:16:41,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:16:41,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:16:41,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:16:41,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:16:41,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:16:41,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (1/1) ... [2022-11-26 00:16:41,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:16:41,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:16:41,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:16:41,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:16:41,427 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-26 00:16:41,427 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-26 00:16:41,427 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-11-26 00:16:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-11-26 00:16:41,428 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:16:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:16:41,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:16:41,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:16:41,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:16:41,429 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:16:41,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:16:41,653 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:16:41,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:16:41,836 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:16:41,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:16:41,928 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:16:41,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:16:41 BoogieIcfgContainer [2022-11-26 00:16:41,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:16:41,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:16:41,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:16:41,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:16:41,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:16:39" (1/3) ... [2022-11-26 00:16:41,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409dc56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:16:41, skipping insertion in model container [2022-11-26 00:16:41,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:41" (2/3) ... [2022-11-26 00:16:41,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409dc56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:16:41, skipping insertion in model container [2022-11-26 00:16:41,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:16:41" (3/3) ... [2022-11-26 00:16:41,941 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-26 00:16:41,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:16:41,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:16:42,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:16:42,019 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;@a998549, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:16:42,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-26 00:16:42,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 15 states have (on average 1.4) internal successors, (21), 21 states have internal predecessors, (21), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-26 00:16:42,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:16:42,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:42,033 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:42,034 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:16:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:42,039 INFO L85 PathProgramCache]: Analyzing trace with hash -228049344, now seen corresponding path program 1 times [2022-11-26 00:16:42,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:16:42,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410082809] [2022-11-26 00:16:42,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:42,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:16:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:16:42,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:16:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:16:42,411 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:16:42,413 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:16:42,415 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-26 00:16:42,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-26 00:16:42,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-26 00:16:42,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-26 00:16:42,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:16:42,428 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:16:42,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:16:42,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:16:42 BoogieIcfgContainer [2022-11-26 00:16:42,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:16:42,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:16:42,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:16:42,495 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:16:42,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:16:41" (3/4) ... [2022-11-26 00:16:42,500 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:16:42,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:16:42,501 INFO L158 Benchmark]: Toolchain (without parser) took 2574.02ms. Allocated memory is still 161.5MB. Free memory was 126.6MB in the beginning and 85.1MB in the end (delta: 41.5MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2022-11-26 00:16:42,502 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:16:42,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1254.95ms. Allocated memory is still 161.5MB. Free memory was 126.6MB in the beginning and 65.2MB in the end (delta: 61.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-26 00:16:42,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.68ms. Allocated memory is still 161.5MB. Free memory was 65.2MB in the beginning and 61.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:16:42,510 INFO L158 Benchmark]: Boogie Preprocessor took 29.60ms. Allocated memory is still 161.5MB. Free memory was 61.8MB in the beginning and 60.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:16:42,511 INFO L158 Benchmark]: RCFGBuilder took 642.70ms. Allocated memory is still 161.5MB. Free memory was 60.4MB in the beginning and 111.5MB in the end (delta: -51.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-26 00:16:42,512 INFO L158 Benchmark]: TraceAbstraction took 558.55ms. Allocated memory is still 161.5MB. Free memory was 111.5MB in the beginning and 85.1MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 00:16:42,513 INFO L158 Benchmark]: Witness Printer took 6.07ms. Allocated memory is still 161.5MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:16:42,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1254.95ms. Allocated memory is still 161.5MB. Free memory was 126.6MB in the beginning and 65.2MB in the end (delta: 61.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.68ms. Allocated memory is still 161.5MB. Free memory was 65.2MB in the beginning and 61.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.60ms. Allocated memory is still 161.5MB. Free memory was 61.8MB in the beginning and 60.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 642.70ms. Allocated memory is still 161.5MB. Free memory was 60.4MB in the beginning and 111.5MB in the end (delta: -51.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 558.55ms. Allocated memory is still 161.5MB. Free memory was 111.5MB in the beginning and 85.1MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 6.07ms. Allocated memory is still 161.5MB. Free memory is still 85.1MB. 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: 1563]: 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); [L1585] 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={3:0}] [L1414] COND TRUE line != ((void *)0) [L1585] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1586] CALL CWE191_Integer_Underflow__int_rand_predec_12_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] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [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)) [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483652] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483652] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: 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 4 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 2, 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=30occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:16:42,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/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 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_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/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_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/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_b663b423-9cb6-4bd0-9186-f4be5313410a/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 60b897a9b8008c7524cfef24ffa178aee0cbd081acd52e3ed30a07a76c5ae5b7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:16:45,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:16:45,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:16:45,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:16:45,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:16:45,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:16:45,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:16:45,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:16:45,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:16:45,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:16:45,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:16:45,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:16:45,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:16:45,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:16:45,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:16:45,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:16:45,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:16:45,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:16:45,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:16:45,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:16:45,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:16:45,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:16:45,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:16:45,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:16:45,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:16:45,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:16:45,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:16:45,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:16:45,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:16:45,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:16:45,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:16:45,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:16:45,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:16:45,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:16:45,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:16:45,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:16:45,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:16:45,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:16:45,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:16:45,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:16:45,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:16:45,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:16:45,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:16:45,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:16:45,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:16:45,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:16:45,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:16:45,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:16:45,269 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:16:45,269 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:16:45,270 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:16:45,270 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:16:45,271 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:16:45,271 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:16:45,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:16:45,272 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:16:45,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:16:45,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:16:45,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:16:45,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:16:45,273 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:16:45,273 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:16:45,273 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:16:45,274 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:16:45,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:16:45,274 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:16:45,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:16:45,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:16:45,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:16:45,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:16:45,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:16:45,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:16:45,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:16:45,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:16:45,276 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:16:45,276 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:16:45,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:16:45,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:16:45,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:16:45,277 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_b663b423-9cb6-4bd0-9186-f4be5313410a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b897a9b8008c7524cfef24ffa178aee0cbd081acd52e3ed30a07a76c5ae5b7 [2022-11-26 00:16:45,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:16:45,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:16:45,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:16:45,707 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:16:45,708 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:16:45,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-26 00:16:48,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:16:49,225 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:16:49,226 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-26 00:16:49,264 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/data/94d503cca/7c15e281e21443edab0bbe412eb2fc45/FLAG13951f859 [2022-11-26 00:16:49,280 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/data/94d503cca/7c15e281e21443edab0bbe412eb2fc45 [2022-11-26 00:16:49,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:16:49,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:16:49,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:16:49,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:16:49,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:16:49,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:16:49" (1/1) ... [2022-11-26 00:16:49,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a186d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:49, skipping insertion in model container [2022-11-26 00:16:49,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:16:49" (1/1) ... [2022-11-26 00:16:49,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:16:49,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:16:49,829 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:16:50,564 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:16:50,572 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:16:50,574 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:16:50,576 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:16:50,576 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:16:50,605 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:16:50,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:16:50,619 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:16:50,638 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:16:50,680 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:16:50,682 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:16:50,689 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:16:50,692 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:16:50,692 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:16:50,698 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:16:50,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:16:50,849 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:16:50,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50 WrapperNode [2022-11-26 00:16:50,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:16:50,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:16:50,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:16:50,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:16:50,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,910 INFO L138 Inliner]: procedures = 504, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-26 00:16:50,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:16:50,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:16:50,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:16:50,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:16:50,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,965 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:16:50,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:16:50,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:16:50,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:16:50,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (1/1) ... [2022-11-26 00:16:50,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:16:50,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:16:51,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:16:51,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:16:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-26 00:16:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-26 00:16:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-11-26 00:16:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-11-26 00:16:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:16:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:16:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:16:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:16:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:16:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:16:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:16:51,255 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:16:51,271 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:16:51,517 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:16:51,523 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:16:51,524 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:16:51,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:16:51 BoogieIcfgContainer [2022-11-26 00:16:51,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:16:51,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:16:51,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:16:51,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:16:51,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:16:49" (1/3) ... [2022-11-26 00:16:51,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d167c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:16:51, skipping insertion in model container [2022-11-26 00:16:51,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:16:50" (2/3) ... [2022-11-26 00:16:51,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d167c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:16:51, skipping insertion in model container [2022-11-26 00:16:51,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:16:51" (3/3) ... [2022-11-26 00:16:51,535 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_12_bad.i [2022-11-26 00:16:51,554 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:16:51,555 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:16:51,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:16:51,617 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;@8e32fe8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:16:51,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-26 00:16:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-26 00:16:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-26 00:16:51,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:51,635 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:51,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:16:51,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1566579328, now seen corresponding path program 1 times [2022-11-26 00:16:51,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:51,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104983009] [2022-11-26 00:16:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:51,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:51,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:51,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:51,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:16:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:16:51,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:16:51,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:16:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:16:51,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:16:51,900 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:16:51,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104983009] [2022-11-26 00:16:51,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104983009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:16:51,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:16:51,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:16:51,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074972681] [2022-11-26 00:16:51,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:16:51,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:16:51,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:16:51,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:16:51,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:16:51,942 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:16:52,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:16:52,021 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2022-11-26 00:16:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:16:52,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-11-26 00:16:52,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:16:52,031 INFO L225 Difference]: With dead ends: 58 [2022-11-26 00:16:52,031 INFO L226 Difference]: Without dead ends: 22 [2022-11-26 00:16:52,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:16:52,038 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 4 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:16:52,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 80 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:16:52,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-26 00:16:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-26 00:16:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:16:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-11-26 00:16:52,074 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 19 [2022-11-26 00:16:52,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:16:52,075 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-11-26 00:16:52,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:16:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-11-26 00:16:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:16:52,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:16:52,078 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:16:52,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-26 00:16:52,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:52,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:16:52,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:16:52,293 INFO L85 PathProgramCache]: Analyzing trace with hash -393790821, now seen corresponding path program 1 times [2022-11-26 00:16:52,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:16:52,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818980638] [2022-11-26 00:16:52,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:16:52,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:52,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:16:52,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:16:52,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:16:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:16:52,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:16:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:16:52,532 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:16:52,533 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:16:52,535 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-26 00:16:52,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-26 00:16:52,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-26 00:16:52,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-26 00:16:52,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:16:52,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:16:52,758 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:16:52,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:16:52,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:16:52 BoogieIcfgContainer [2022-11-26 00:16:52,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:16:52,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:16:52,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:16:52,799 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:16:52,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:16:51" (3/4) ... [2022-11-26 00:16:52,802 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:16:52,849 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:16:52,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:16:52,850 INFO L158 Benchmark]: Toolchain (without parser) took 3566.20ms. Allocated memory was 77.6MB in the beginning and 111.1MB in the end (delta: 33.6MB). Free memory was 48.9MB in the beginning and 63.2MB in the end (delta: -14.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-11-26 00:16:52,851 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 77.6MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:16:52,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1564.74ms. Allocated memory was 77.6MB in the beginning and 111.1MB in the end (delta: 33.6MB). Free memory was 48.7MB in the beginning and 57.3MB in the end (delta: -8.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2022-11-26 00:16:52,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.98ms. Allocated memory is still 111.1MB. Free memory was 57.3MB in the beginning and 54.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:16:52,852 INFO L158 Benchmark]: Boogie Preprocessor took 63.53ms. Allocated memory is still 111.1MB. Free memory was 54.2MB in the beginning and 83.3MB in the end (delta: -29.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-11-26 00:16:52,853 INFO L158 Benchmark]: RCFGBuilder took 550.38ms. Allocated memory is still 111.1MB. Free memory was 83.3MB in the beginning and 68.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:16:52,854 INFO L158 Benchmark]: TraceAbstraction took 1270.14ms. Allocated memory is still 111.1MB. Free memory was 67.7MB in the beginning and 66.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2022-11-26 00:16:52,854 INFO L158 Benchmark]: Witness Printer took 50.84ms. Allocated memory is still 111.1MB. Free memory was 66.0MB in the beginning and 63.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:16:52,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 77.6MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1564.74ms. Allocated memory was 77.6MB in the beginning and 111.1MB in the end (delta: 33.6MB). Free memory was 48.7MB in the beginning and 57.3MB in the end (delta: -8.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.98ms. Allocated memory is still 111.1MB. Free memory was 57.3MB in the beginning and 54.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.53ms. Allocated memory is still 111.1MB. Free memory was 54.2MB in the beginning and 83.3MB in the end (delta: -29.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * RCFGBuilder took 550.38ms. Allocated memory is still 111.1MB. Free memory was 83.3MB in the beginning and 68.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1270.14ms. Allocated memory is still 111.1MB. Free memory was 67.7MB in the beginning and 66.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 50.84ms. Allocated memory is still 111.1MB. Free memory was 66.0MB in the beginning and 63.2MB in the end (delta: 2.8MB). 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: 1563]: 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] [L1585] 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={3:0}] [L1414] COND TRUE line != ((void *)0) [L1585] 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] [L1586] CALL CWE191_Integer_Underflow__int_rand_predec_12_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] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [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()=65536, rand()=1, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: 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 4 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 47 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:16:52,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b663b423-9cb6-4bd0-9186-f4be5313410a/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)