./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW --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 8ee7f8fb024522f94fe2d93950e7d5f7b56bea1019427e75a0d74f3e8129f230 --- 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-4e7fbc6 [2022-11-23 14:13:48,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:13:48,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:13:48,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:13:48,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:13:48,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:13:48,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:13:48,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:13:48,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:13:48,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:13:48,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:13:48,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:13:48,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:13:48,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:13:48,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:13:48,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:13:48,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:13:48,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:13:48,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:13:48,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:13:48,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:13:48,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:13:48,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:13:48,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:13:48,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:13:48,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:13:48,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:13:48,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:13:48,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:13:48,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:13:48,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:13:48,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:13:48,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:13:48,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:13:48,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:13:48,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:13:48,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:13:48,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:13:48,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:13:48,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:13:48,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:13:48,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 14:13:48,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:13:48,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:13:48,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:13:48,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:13:48,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:13:48,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:13:48,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:13:48,333 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:13:48,334 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:13:48,334 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:13:48,347 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:13:48,348 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:13:48,348 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:13:48,348 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:13:48,348 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:13:48,348 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:13:48,349 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:13:48,349 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:13:48,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:13:48,350 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:13:48,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:13:48,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:13:48,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:13:48,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:13:48,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:13:48,351 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:13:48,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:13:48,352 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:13:48,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:13:48,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:13:48,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:13:48,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:13:48,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:13:48,354 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:13:48,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:13:48,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:13:48,354 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:13:48,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:13:48,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:13:48,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:13:48,355 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_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ee7f8fb024522f94fe2d93950e7d5f7b56bea1019427e75a0d74f3e8129f230 [2022-11-23 14:13:48,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:13:48,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:13:48,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:13:48,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:13:48,715 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:13:48,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2022-11-23 14:13:51,684 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:13:52,174 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:13:52,176 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2022-11-23 14:13:52,205 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/data/67eff5207/a4761175f6464dcea4951f8e304c5bbb/FLAGcbd01f9c0 [2022-11-23 14:13:52,227 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/data/67eff5207/a4761175f6464dcea4951f8e304c5bbb [2022-11-23 14:13:52,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:13:52,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:13:52,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:13:52,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:13:52,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:13:52,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:52" (1/1) ... [2022-11-23 14:13:52,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7539cc06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:52, skipping insertion in model container [2022-11-23 14:13:52,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:52" (1/1) ... [2022-11-23 14:13:52,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:13:52,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:13:52,717 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:13:53,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:13:53,258 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:13:53,289 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:13:53,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:13:53,529 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:13:53,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53 WrapperNode [2022-11-23 14:13:53,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:13:53,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:13:53,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:13:53,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:13:53,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,631 INFO L138 Inliner]: procedures = 500, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2022-11-23 14:13:53,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:13:53,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:13:53,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:13:53,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:13:53,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,699 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:13:53,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:13:53,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:13:53,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:13:53,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (1/1) ... [2022-11-23 14:13:53,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:13:53,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:13:53,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:13:53,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:13:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 14:13:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 14:13:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:13:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:13:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:13:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:13:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:13:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:13:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 14:13:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:13:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:13:54,044 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:13:54,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:13:54,309 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:13:54,387 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:13:54,387 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:13:54,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:54 BoogieIcfgContainer [2022-11-23 14:13:54,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:13:54,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:13:54,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:13:54,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:13:54,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:13:52" (1/3) ... [2022-11-23 14:13:54,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f318836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:54, skipping insertion in model container [2022-11-23 14:13:54,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:53" (2/3) ... [2022-11-23 14:13:54,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f318836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:54, skipping insertion in model container [2022-11-23 14:13:54,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:54" (3/3) ... [2022-11-23 14:13:54,400 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2022-11-23 14:13:54,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:13:54,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:13:54,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:13:54,476 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;@4a30b2a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:13:54,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:13:54,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:13:54,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:13:54,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:13:54,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:13:54,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 14:13:54,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:13:54,496 INFO L85 PathProgramCache]: Analyzing trace with hash 2123776881, now seen corresponding path program 1 times [2022-11-23 14:13:54,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:13:54,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665267997] [2022-11-23 14:13:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:13:54,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:13:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:13:54,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:13:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:13:54,922 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:13:54,925 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:13:54,927 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 14:13:54,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 14:13:54,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:13:54,936 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:13:54,944 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:13:54,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:13:54 BoogieIcfgContainer [2022-11-23 14:13:54,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:13:54,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:13:54,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:13:54,991 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:13:54,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:54" (3/4) ... [2022-11-23 14:13:54,994 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:13:54,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:13:54,996 INFO L158 Benchmark]: Toolchain (without parser) took 2760.78ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 131.0MB in the beginning and 147.5MB in the end (delta: -16.4MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2022-11-23 14:13:54,997 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 167.8MB. Free memory is still 137.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:13:54,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1293.48ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 68.9MB in the end (delta: 62.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-23 14:13:54,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.33ms. Allocated memory is still 167.8MB. Free memory was 68.5MB in the beginning and 65.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:13:55,000 INFO L158 Benchmark]: Boogie Preprocessor took 68.83ms. Allocated memory is still 167.8MB. Free memory was 65.6MB in the beginning and 136.1MB in the end (delta: -70.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-23 14:13:55,006 INFO L158 Benchmark]: RCFGBuilder took 686.59ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 136.0MB in the beginning and 172.6MB in the end (delta: -36.6MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-11-23 14:13:55,006 INFO L158 Benchmark]: TraceAbstraction took 595.92ms. Allocated memory is still 222.3MB. Free memory was 171.6MB in the beginning and 148.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 14:13:55,008 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 222.3MB. Free memory was 148.5MB in the beginning and 147.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:13:55,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 167.8MB. Free memory is still 137.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1293.48ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 68.9MB in the end (delta: 62.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.33ms. Allocated memory is still 167.8MB. Free memory was 68.5MB in the beginning and 65.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.83ms. Allocated memory is still 167.8MB. Free memory was 65.6MB in the beginning and 136.1MB in the end (delta: -70.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 686.59ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 136.0MB in the beginning and 172.6MB in the end (delta: -36.6MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * TraceAbstraction took 595.92ms. Allocated memory is still 222.3MB. Free memory was 171.6MB in the beginning and 148.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.35ms. Allocated memory is still 222.3MB. Free memory was 148.5MB in the beginning and 147.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1553, overapproximation of bitwiseAnd at line 1553. 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); [L1559] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [#in~argv={2147483655:2147483653}, argc=2147483651, argv={2147483655:2147483653}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=2147483651] [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_postdec_64b_badSink(&data) [L1566] int * dataPtr = (int *)dataVoidPtr; [L1567] EXPR \read(*dataPtr) [L1567] int data = (*dataPtr); [L1569] data-- VAL [#in~dataVoidPtr={5:0}, data=-2147483648, data--=-2147483648, dataPtr={5:0}, dataVoidPtr={5:0}, 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:13:55,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW --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 8ee7f8fb024522f94fe2d93950e7d5f7b56bea1019427e75a0d74f3e8129f230 --- 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-4e7fbc6 [2022-11-23 14:13:57,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:13:57,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:13:57,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:13:57,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:13:57,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:13:57,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:13:57,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:13:57,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:13:57,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:13:57,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:13:57,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:13:57,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:13:57,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:13:57,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:13:57,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:13:57,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:13:57,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:13:57,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:13:57,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:13:57,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:13:57,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:13:57,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:13:57,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:13:57,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:13:57,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:13:57,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:13:57,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:13:57,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:13:57,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:13:57,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:13:57,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:13:57,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:13:57,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:13:57,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:13:57,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:13:57,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:13:57,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:13:57,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:13:57,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:13:57,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:13:57,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 14:13:57,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:13:57,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:13:57,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:13:57,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:13:57,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:13:57,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:13:57,683 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:13:57,683 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:13:57,684 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:13:57,684 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:13:57,685 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:13:57,685 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:13:57,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:13:57,686 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:13:57,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:13:57,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:13:57,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:13:57,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:13:57,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:13:57,687 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:13:57,687 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:13:57,688 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:13:57,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:13:57,688 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:13:57,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:13:57,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:13:57,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:13:57,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:13:57,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:13:57,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:13:57,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:13:57,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:13:57,690 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:13:57,690 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:13:57,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:13:57,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:13:57,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:13:57,691 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_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ee7f8fb024522f94fe2d93950e7d5f7b56bea1019427e75a0d74f3e8129f230 [2022-11-23 14:13:58,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:13:58,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:13:58,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:13:58,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:13:58,083 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:13:58,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2022-11-23 14:14:01,234 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:14:01,617 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:14:01,618 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2022-11-23 14:14:01,654 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/data/5cb7def9b/9c44e065fb1e4862b49cb7b677ec31a5/FLAG572f4328b [2022-11-23 14:14:01,673 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/data/5cb7def9b/9c44e065fb1e4862b49cb7b677ec31a5 [2022-11-23 14:14:01,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:14:01,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:14:01,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:14:01,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:14:01,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:14:01,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:01" (1/1) ... [2022-11-23 14:14:01,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff2c042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:01, skipping insertion in model container [2022-11-23 14:14:01,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:01" (1/1) ... [2022-11-23 14:14:01,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:14:01,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:14:02,148 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:14:02,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:14:02,700 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 14:14:02,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:14:02,733 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:14:02,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:14:02,785 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:14:02,819 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:14:02,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:14:03,067 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:14:03,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03 WrapperNode [2022-11-23 14:14:03,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:14:03,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:14:03,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:14:03,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:14:03,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,163 INFO L138 Inliner]: procedures = 505, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2022-11-23 14:14:03,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:14:03,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:14:03,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:14:03,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:14:03,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,204 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:14:03,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:14:03,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:14:03,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:14:03,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (1/1) ... [2022-11-23 14:14:03,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:14:03,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:14:03,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:14:03,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:14:03,296 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 14:14:03,297 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 14:14:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:14:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:14:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:14:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:14:03,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:14:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:14:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:14:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 14:14:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 14:14:03,552 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:14:03,554 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:14:03,854 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:14:03,860 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:14:03,860 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:14:03,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:03 BoogieIcfgContainer [2022-11-23 14:14:03,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:14:03,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:14:03,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:14:03,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:14:03,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:14:01" (1/3) ... [2022-11-23 14:14:03,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70474e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:03, skipping insertion in model container [2022-11-23 14:14:03,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:03" (2/3) ... [2022-11-23 14:14:03,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70474e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:03, skipping insertion in model container [2022-11-23 14:14:03,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:03" (3/3) ... [2022-11-23 14:14:03,886 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_64_bad.i [2022-11-23 14:14:03,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:14:03,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:14:03,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:14:03,974 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;@22cfbaa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:14:03,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:14:03,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:14:03,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:14:03,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:14:03,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:14:03,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 14:14:03,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:14:03,999 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2022-11-23 14:14:04,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:14:04,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062843911] [2022-11-23 14:14:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:14:04,017 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 [2022-11-23 14:14:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:14:04,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:14:04,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:14:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:14:04,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:14:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:14:04,519 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 14:14:04,521 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:14:04,523 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 14:14:04,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 14:14:04,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:14:04,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:14:04,730 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:14:04,736 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:14:04,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:14:04 BoogieIcfgContainer [2022-11-23 14:14:04,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:14:04,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:14:04,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:14:04,795 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:14:04,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:03" (3/4) ... [2022-11-23 14:14:04,797 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 14:14:04,842 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:14:04,842 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:14:04,843 INFO L158 Benchmark]: Toolchain (without parser) took 3162.38ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 62.7MB in the end (delta: -16.4MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-11-23 14:14:04,844 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 54.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:14:04,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1385.10ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 46.1MB in the beginning and 51.6MB in the end (delta: -5.4MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2022-11-23 14:14:04,845 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.89ms. Allocated memory is still 94.4MB. Free memory was 51.6MB in the beginning and 48.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:14:04,846 INFO L158 Benchmark]: Boogie Preprocessor took 44.23ms. Allocated memory is still 94.4MB. Free memory was 48.6MB in the beginning and 46.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:14:04,846 INFO L158 Benchmark]: RCFGBuilder took 652.26ms. Allocated memory is still 94.4MB. Free memory was 46.0MB in the beginning and 56.4MB in the end (delta: -10.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-11-23 14:14:04,847 INFO L158 Benchmark]: TraceAbstraction took 908.71ms. Allocated memory is still 94.4MB. Free memory was 55.9MB in the beginning and 64.7MB in the end (delta: -8.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 14:14:04,847 INFO L158 Benchmark]: Witness Printer took 47.64ms. Allocated memory is still 94.4MB. Free memory was 64.7MB in the beginning and 62.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:14:04,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 54.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1385.10ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 46.1MB in the beginning and 51.6MB in the end (delta: -5.4MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.89ms. Allocated memory is still 94.4MB. Free memory was 51.6MB in the beginning and 48.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.23ms. Allocated memory is still 94.4MB. Free memory was 48.6MB in the beginning and 46.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.26ms. Allocated memory is still 94.4MB. Free memory was 46.0MB in the beginning and 56.4MB in the end (delta: -10.4MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 908.71ms. Allocated memory is still 94.4MB. Free memory was 55.9MB in the beginning and 64.7MB in the end (delta: -8.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 47.64ms. Allocated memory is still 94.4MB. Free memory was 64.7MB in the beginning and 62.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1569]: 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] [L1559] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=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, unknown-#in~argc-unknown=12] [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data={7:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=1073741823, rand()=1, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_postdec_64b_badSink(&data) [L1566] int * dataPtr = (int *)dataVoidPtr; [L1567] EXPR \read(*dataPtr) [L1567] int data = (*dataPtr); [L1569] data-- VAL [#in~dataVoidPtr={7:0}, data=-2147483648, data--=-2147483648, dataPtr={7:0}, dataVoidPtr={7:0}, 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 14:14:04,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4024f95-3cbb-4940-8429-47ec715d0b20/bin/utaipan-Q6hlc19bkW/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)