./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4520eb0b0d8926e69b6bb597f4dba875b441bb352d43c1e5b4eee1e6dc28536d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:42:54,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:42:54,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:42:54,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:42:54,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:42:54,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:42:54,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:42:54,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:42:54,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:42:54,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:42:54,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:42:54,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:42:54,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:42:54,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:42:54,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:42:54,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:42:54,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:42:54,523 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:42:54,524 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:42:54,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:42:54,525 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:42:54,529 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:42:54,530 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:42:54,530 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:42:54,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:42:54,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:42:54,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:42:54,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:42:54,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:42:54,534 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:42:54,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:42:54,536 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:42:54,536 INFO L153 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_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4520eb0b0d8926e69b6bb597f4dba875b441bb352d43c1e5b4eee1e6dc28536d [2023-11-21 18:42:54,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:42:54,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:42:54,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:42:54,924 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:42:54,924 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:42:54,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i [2023-11-21 18:42:57,993 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:42:58,440 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:42:58,441 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i [2023-11-21 18:42:58,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/data/574272007/fe2c974540c24f8eb590bf53a849262d/FLAGc9dfd8a6e [2023-11-21 18:42:58,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/data/574272007/fe2c974540c24f8eb590bf53a849262d [2023-11-21 18:42:58,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:42:58,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:42:58,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:42:58,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:42:58,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:42:58,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:58" (1/1) ... [2023-11-21 18:42:58,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f576ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:42:58, skipping insertion in model container [2023-11-21 18:42:58,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:42:58" (1/1) ... [2023-11-21 18:42:58,594 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:42:59,021 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:42:59,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:42:59,720 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:42:59,774 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:42:59,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:43:00,086 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:00,089 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:00,090 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:00,090 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:00,090 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:00,098 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:43:00,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00 WrapperNode [2023-11-21 18:43:00,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:43:00,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:43:00,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:43:00,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:43:00,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,191 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2023-11-21 18:43:00,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:43:00,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:43:00,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:43:00,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:43:00,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:43:00,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:43:00,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:43:00,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:43:00,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:43:00,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:43:00,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:43:00,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:43:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:43:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:43:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:43:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:43:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:43:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:43:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:43:00,465 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:43:00,467 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:43:00,673 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:43:00,946 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:43:00,946 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:43:00,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:43:00 BoogieIcfgContainer [2023-11-21 18:43:00,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:43:00,949 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:43:00,950 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:43:00,960 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:43:00,960 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:43:00" (1/1) ... [2023-11-21 18:43:00,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:43:01,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:01,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:43:01,024 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:43:01,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:43:01,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:01,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:43:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:43:01,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:43:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:43:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:43:01,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:43:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:43:01,845 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:43:01,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:43:01 ImpRootNode [2023-11-21 18:43:01,879 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:43:01,880 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:43:01,880 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:43:01,881 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:43:01,881 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:43:00" (3/4) ... [2023-11-21 18:43:01,884 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:43:01,885 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:43:01,886 INFO L158 Benchmark]: Toolchain (without parser) took 3383.68ms. Allocated memory was 165.7MB in the beginning and 209.7MB in the end (delta: 44.0MB). Free memory was 133.8MB in the beginning and 156.7MB in the end (delta: -22.9MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-11-21 18:43:01,887 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:43:01,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1593.68ms. Allocated memory is still 165.7MB. Free memory was 133.8MB in the beginning and 120.5MB in the end (delta: 13.3MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-21 18:43:01,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.62ms. Allocated memory is still 165.7MB. Free memory was 120.5MB in the beginning and 116.5MB in the end (delta: 4.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:43:01,889 INFO L158 Benchmark]: Boogie Preprocessor took 43.01ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:43:01,890 INFO L158 Benchmark]: RCFGBuilder took 712.69ms. Allocated memory is still 165.7MB. Free memory was 115.4MB in the beginning and 77.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-21 18:43:01,891 INFO L158 Benchmark]: CodeCheck took 930.05ms. Allocated memory was 165.7MB in the beginning and 209.7MB in the end (delta: 44.0MB). Free memory was 77.6MB in the beginning and 156.7MB in the end (delta: -79.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:43:01,891 INFO L158 Benchmark]: Witness Printer took 5.25ms. Allocated memory is still 209.7MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:43:01,895 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s 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, 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: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr 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); [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={16:14}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_18_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [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)) [L1558] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1593.68ms. Allocated memory is still 165.7MB. Free memory was 133.8MB in the beginning and 120.5MB in the end (delta: 13.3MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.62ms. Allocated memory is still 165.7MB. Free memory was 120.5MB in the beginning and 116.5MB in the end (delta: 4.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.01ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 712.69ms. Allocated memory is still 165.7MB. Free memory was 115.4MB in the beginning and 77.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 930.05ms. Allocated memory was 165.7MB in the beginning and 209.7MB in the end (delta: 44.0MB). Free memory was 77.6MB in the beginning and 156.7MB in the end (delta: -79.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.25ms. Allocated memory is still 209.7MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:43:01,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4520eb0b0d8926e69b6bb597f4dba875b441bb352d43c1e5b4eee1e6dc28536d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:43:04,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:43:04,833 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:43:04,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:43:04,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:43:04,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:43:04,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:43:04,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:43:04,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:43:04,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:43:04,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:43:04,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:43:04,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:43:04,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:43:04,902 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:43:04,903 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:43:04,903 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:43:04,904 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:43:04,904 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:43:04,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:43:04,905 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:43:04,906 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:43:04,906 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:43:04,907 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:43:04,907 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:04,908 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:43:04,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:43:04,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:43:04,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:43:04,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:43:04,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:43:04,911 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:43:04,912 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:04,912 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:43:04,912 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:43:04,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:43:04,913 INFO L153 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_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4520eb0b0d8926e69b6bb597f4dba875b441bb352d43c1e5b4eee1e6dc28536d [2023-11-21 18:43:05,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:43:05,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:43:05,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:43:05,393 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:43:05,393 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:43:05,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i [2023-11-21 18:43:08,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:43:09,258 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:43:09,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i [2023-11-21 18:43:09,289 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/data/667d3b1d9/50a4cf33c1c34d1c8fb51806cef2156f/FLAG4651872ad [2023-11-21 18:43:09,309 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/data/667d3b1d9/50a4cf33c1c34d1c8fb51806cef2156f [2023-11-21 18:43:09,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:43:09,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:43:09,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:43:09,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:43:09,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:43:09,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:43:09" (1/1) ... [2023-11-21 18:43:09,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c70d108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:09, skipping insertion in model container [2023-11-21 18:43:09,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:43:09" (1/1) ... [2023-11-21 18:43:09,409 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:43:09,898 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:43:10,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:43:10,808 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:43:10,840 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:43:10,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:43:11,087 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:11,087 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:11,087 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:11,087 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:11,088 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:43:11,095 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:43:11,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11 WrapperNode [2023-11-21 18:43:11,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:43:11,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:43:11,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:43:11,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:43:11,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,183 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-11-21 18:43:11,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:43:11,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:43:11,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:43:11,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:43:11,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,210 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,212 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:43:11,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:43:11,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:43:11,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:43:11,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:43:11,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:43:11,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:43:11,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:43:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:43:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:43:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:43:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:43:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:43:11,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:43:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:43:11,525 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:43:11,528 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:43:11,726 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:43:11,847 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:43:11,848 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:43:11,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:43:11 BoogieIcfgContainer [2023-11-21 18:43:11,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:43:11,853 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:43:11,854 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:43:11,864 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:43:11,865 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:43:11" (1/1) ... [2023-11-21 18:43:11,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:43:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:43:11,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:43:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:43:11,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:43:11,957 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:43:11,958 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:43:11,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:43:11,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:43:11,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:43:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:43:12,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:43:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:43:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:43:12,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:43:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:43:12,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:43:12,476 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:43:12,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:43:12 ImpRootNode [2023-11-21 18:43:12,506 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:43:12,507 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:43:12,507 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:43:12,507 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:43:12,508 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:43:11" (3/4) ... [2023-11-21 18:43:12,509 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:43:12,563 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:43:12,563 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:43:12,565 INFO L158 Benchmark]: Toolchain (without parser) took 3247.68ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 54.1MB in the beginning and 47.9MB in the end (delta: 6.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-11-21 18:43:12,568 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 58.7MB. Free memory was 34.2MB in the beginning and 34.2MB in the end (delta: 65.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:43:12,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1777.83ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 49.7MB in the end (delta: 4.2MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-21 18:43:12,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.61ms. Allocated memory is still 81.8MB. Free memory was 49.7MB in the beginning and 46.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:43:12,573 INFO L158 Benchmark]: Boogie Preprocessor took 37.92ms. Allocated memory is still 81.8MB. Free memory was 46.5MB in the beginning and 44.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:43:12,574 INFO L158 Benchmark]: RCFGBuilder took 628.65ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 44.4MB in the beginning and 65.3MB in the end (delta: -20.9MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-11-21 18:43:12,574 INFO L158 Benchmark]: CodeCheck took 652.87ms. Allocated memory is still 98.6MB. Free memory was 65.3MB in the beginning and 50.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:43:12,575 INFO L158 Benchmark]: Witness Printer took 56.49ms. Allocated memory is still 98.6MB. Free memory was 50.1MB in the beginning and 47.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:43:12,583 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s 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, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1558]: 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); [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_18_bad() [L1550] int data; [L1551] data = 0 [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)) [L1558] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 58.7MB. Free memory was 34.2MB in the beginning and 34.2MB in the end (delta: 65.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1777.83ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 49.7MB in the end (delta: 4.2MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.61ms. Allocated memory is still 81.8MB. Free memory was 49.7MB in the beginning and 46.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.92ms. Allocated memory is still 81.8MB. Free memory was 46.5MB in the beginning and 44.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.65ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 44.4MB in the beginning and 65.3MB in the end (delta: -20.9MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * CodeCheck took 652.87ms. Allocated memory is still 98.6MB. Free memory was 65.3MB in the beginning and 50.1MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 56.49ms. Allocated memory is still 98.6MB. Free memory was 50.1MB in the beginning and 47.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:43:12,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_714b9a00-f338-4e59-8f15-0c437b873dd4/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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)