./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/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_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/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_66e159a8-913c-4b0c-91c9-055de7a15728/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 6cf48e6f43cdcb1ddba628e3d3c208d4f7410fc9f0e3593c1621578e046c16a6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:48:29,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:48:29,573 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:48:29,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:48:29,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:48:29,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:48:29,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:48:29,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:48:29,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:48:29,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:48:29,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:48:29,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:48:29,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:48:29,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:48:29,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:48:29,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:48:29,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:48:29,663 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:48:29,664 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:48:29,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:48:29,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:48:29,666 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:48:29,666 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:48:29,669 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:48:29,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:48:29,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:29,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:48:29,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:48:29,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:48:29,672 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:48:29,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:48:29,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:48:29,674 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_66e159a8-913c-4b0c-91c9-055de7a15728/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cf48e6f43cdcb1ddba628e3d3c208d4f7410fc9f0e3593c1621578e046c16a6 [2023-11-21 18:48:30,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:48:30,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:48:30,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:48:30,042 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:48:30,043 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:48:30,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_61_bad.i [2023-11-21 18:48:33,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:48:33,582 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:48:33,584 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_61_bad.i [2023-11-21 18:48:33,608 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/data/12f4852e6/ceb687230fae48aaa1ab75bd02698068/FLAG9a84293ff [2023-11-21 18:48:33,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/data/12f4852e6/ceb687230fae48aaa1ab75bd02698068 [2023-11-21 18:48:33,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:48:33,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:48:33,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:33,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:48:33,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:48:33,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:33" (1/1) ... [2023-11-21 18:48:33,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f59522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:33, skipping insertion in model container [2023-11-21 18:48:33,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:33" (1/1) ... [2023-11-21 18:48:33,705 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:48:34,132 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:34,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:34,731 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:48:34,751 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:34,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:35,075 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:35,076 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:35,076 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:35,076 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:35,076 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:35,084 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:48:35,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35 WrapperNode [2023-11-21 18:48:35,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:35,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:35,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:48:35,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:48:35,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,192 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 95 [2023-11-21 18:48:35,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:35,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:48:35,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:48:35,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:48:35,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:48:35,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:48:35,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:48:35,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:48:35,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:35" (1/1) ... [2023-11-21 18:48:35,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:35,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:48:35,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:48:35,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:48:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:48:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:48:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:48:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:48:35,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:48:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:48:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:48:35,489 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:48:35,490 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:48:35,726 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:48:36,023 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:48:36,024 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:48:36,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:36 BoogieIcfgContainer [2023-11-21 18:48:36,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:48:36,027 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:48:36,027 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:48:36,038 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:48:36,039 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:36" (1/1) ... [2023-11-21 18:48:36,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:48:36,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:36,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:48:36,124 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:48:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:48:36,129 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:36,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:36,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:48:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:36,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:48:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:36,781 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:48:36,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:48:36 ImpRootNode [2023-11-21 18:48:36,807 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:48:36,807 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:48:36,807 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:48:36,808 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:48:36,808 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:36" (3/4) ... [2023-11-21 18:48:36,810 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:48:36,811 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:48:36,812 INFO L158 Benchmark]: Toolchain (without parser) took 3184.31ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 117.9MB in the beginning and 121.9MB in the end (delta: -4.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-11-21 18:48:36,813 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:36,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1456.57ms. Allocated memory is still 153.1MB. Free memory was 117.3MB in the beginning and 104.7MB in the end (delta: 12.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-21 18:48:36,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.65ms. Allocated memory is still 153.1MB. Free memory was 104.7MB in the beginning and 101.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:36,815 INFO L158 Benchmark]: Boogie Preprocessor took 56.08ms. Allocated memory is still 153.1MB. Free memory was 101.8MB in the beginning and 100.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:36,816 INFO L158 Benchmark]: RCFGBuilder took 776.32ms. Allocated memory is still 153.1MB. Free memory was 99.7MB in the beginning and 61.5MB in the end (delta: 38.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-21 18:48:36,816 INFO L158 Benchmark]: CodeCheck took 779.74ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 61.5MB in the beginning and 121.9MB in the end (delta: -60.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:36,817 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 184.5MB. Free memory was 121.9MB in the beginning and 121.9MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:36,820 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: 0.7s, 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1570. 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); [L1563] 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) [L1563] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={14:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_predec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_predec_61b_badSource(data) [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1570] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1571] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_predec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_predec_61b_badSource(data) [L1555] --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 0.34ms. Allocated memory is still 123.7MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1456.57ms. Allocated memory is still 153.1MB. Free memory was 117.3MB in the beginning and 104.7MB in the end (delta: 12.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.65ms. Allocated memory is still 153.1MB. Free memory was 104.7MB in the beginning and 101.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.08ms. Allocated memory is still 153.1MB. Free memory was 101.8MB in the beginning and 100.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 776.32ms. Allocated memory is still 153.1MB. Free memory was 99.7MB in the beginning and 61.5MB in the end (delta: 38.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 779.74ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 61.5MB in the beginning and 121.9MB in the end (delta: -60.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 184.5MB. Free memory was 121.9MB in the beginning and 121.9MB in the end (delta: 2.6kB). 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 18:48:36,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/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_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/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_66e159a8-913c-4b0c-91c9-055de7a15728/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 6cf48e6f43cdcb1ddba628e3d3c208d4f7410fc9f0e3593c1621578e046c16a6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:48:39,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:48:39,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:48:39,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:48:39,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:48:39,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:48:39,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:48:39,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:48:39,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:48:39,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:48:39,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:48:39,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:48:39,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:48:39,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:48:39,592 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:48:39,592 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:48:39,593 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:48:39,593 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:48:39,594 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:48:39,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:48:39,596 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:48:39,597 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:48:39,597 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:48:39,598 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:48:39,598 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:48:39,599 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:48:39,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:48:39,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:39,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:48:39,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:48:39,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:48:39,602 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:48:39,603 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:48:39,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:48:39,604 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:48:39,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:48:39,604 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_66e159a8-913c-4b0c-91c9-055de7a15728/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cf48e6f43cdcb1ddba628e3d3c208d4f7410fc9f0e3593c1621578e046c16a6 [2023-11-21 18:48:40,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:48:40,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:48:40,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:48:40,089 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:48:40,090 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:48:40,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_61_bad.i [2023-11-21 18:48:43,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:48:43,738 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:48:43,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_61_bad.i [2023-11-21 18:48:43,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/data/e7870a5e1/3e2073dcbe334f19b2b4c5361b560b13/FLAG81cd12f69 [2023-11-21 18:48:43,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/data/e7870a5e1/3e2073dcbe334f19b2b4c5361b560b13 [2023-11-21 18:48:43,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:48:43,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:48:43,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:43,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:48:43,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:48:43,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:43" (1/1) ... [2023-11-21 18:48:43,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451329bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:43, skipping insertion in model container [2023-11-21 18:48:43,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:43" (1/1) ... [2023-11-21 18:48:43,890 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:48:44,331 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:45,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:45,246 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:48:45,281 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:45,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:45,525 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:45,526 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:45,526 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:45,526 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:45,526 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:45,535 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:48:45,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45 WrapperNode [2023-11-21 18:48:45,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:45,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:45,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:48:45,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:48:45,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,606 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-11-21 18:48:45,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:45,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:48:45,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:48:45,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:48:45,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:48:45,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:48:45,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:48:45,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:48:45,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:45" (1/1) ... [2023-11-21 18:48:45,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:45,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:48:45,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:48:45,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:48:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:48:45,746 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:48:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:48:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:48:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:48:45,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:48:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:48:45,937 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:48:45,939 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:48:46,066 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:48:46,130 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:48:46,134 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:48:46,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:46 BoogieIcfgContainer [2023-11-21 18:48:46,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:48:46,140 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:48:46,140 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:48:46,150 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:48:46,150 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:46" (1/1) ... [2023-11-21 18:48:46,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:48:46,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:48:46,222 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:48:46,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:48:46,229 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:46,230 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:48:46,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:48:46,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:48:46,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:48:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:46,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:48:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:46,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:48:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:46,640 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:48:46,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:48:46,648 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:48:46,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:48:46 ImpRootNode [2023-11-21 18:48:46,678 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:48:46,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:48:46,679 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:48:46,679 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:48:46,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:46" (3/4) ... [2023-11-21 18:48:46,680 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:48:46,750 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:48:46,750 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:48:46,751 INFO L158 Benchmark]: Toolchain (without parser) took 2951.65ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 50.0MB in the beginning and 46.0MB in the end (delta: 4.0MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2023-11-21 18:48:46,752 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 77.6MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:46,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1733.20ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 49.8MB in the beginning and 56.9MB in the end (delta: -7.2MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2023-11-21 18:48:46,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.09ms. Allocated memory is still 104.9MB. Free memory was 56.9MB in the beginning and 53.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:46,755 INFO L158 Benchmark]: Boogie Preprocessor took 38.01ms. Allocated memory is still 104.9MB. Free memory was 53.8MB in the beginning and 51.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:46,756 INFO L158 Benchmark]: RCFGBuilder took 492.97ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 63.2MB in the end (delta: -11.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-11-21 18:48:46,756 INFO L158 Benchmark]: CodeCheck took 537.55ms. Allocated memory is still 104.9MB. Free memory was 63.2MB in the beginning and 48.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:48:46,757 INFO L158 Benchmark]: Witness Printer took 72.16ms. Allocated memory is still 104.9MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:46,764 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: 0.5s, 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: 1555]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1563] 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) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_rand_predec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_predec_61b_badSource(data) [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1570] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1571] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_predec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_predec_61b_badSource(data) [L1555] --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 0.63ms. Allocated memory is still 77.6MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1733.20ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 49.8MB in the beginning and 56.9MB in the end (delta: -7.2MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.09ms. Allocated memory is still 104.9MB. Free memory was 56.9MB in the beginning and 53.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.01ms. Allocated memory is still 104.9MB. Free memory was 53.8MB in the beginning and 51.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 492.97ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 63.2MB in the end (delta: -11.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * CodeCheck took 537.55ms. Allocated memory is still 104.9MB. Free memory was 63.2MB in the beginning and 48.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 72.16ms. Allocated memory is still 104.9MB. Free memory was 48.1MB in the beginning and 46.0MB 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 18:48:46,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66e159a8-913c-4b0c-91c9-055de7a15728/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)