./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 0e0057cc 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_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/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_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9 --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 0.2.4-dev-0e0057c [2023-12-03 02:54:10,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:54:10,119 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 02:54:10,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:54:10,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:54:10,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:54:10,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:54:10,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:54:10,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:54:10,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:54:10,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:54:10,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:54:10,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:54:10,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:54:10,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:54:10,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:54:10,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:54:10,157 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:54:10,157 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:54:10,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:54:10,158 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:54:10,161 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:54:10,161 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:54:10,162 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:54:10,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:54:10,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:54:10,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:54:10,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:54:10,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:54:10,165 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:54:10,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:54:10,166 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:54:10,166 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_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4520eb0b0d8926e69b6bb597f4dba875b441bb352d43c1e5b4eee1e6dc28536d [2023-12-03 02:54:10,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:54:10,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:54:10,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:54:10,415 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:54:10,416 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:54:10,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i [2023-12-03 02:54:13,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:54:13,492 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:54:13,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i [2023-12-03 02:54:13,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/data/d4b2c9d29/d4b27fff40cd4a71b0e827b436563acf/FLAG890b1223a [2023-12-03 02:54:13,535 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/data/d4b2c9d29/d4b27fff40cd4a71b0e827b436563acf [2023-12-03 02:54:13,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:54:13,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:54:13,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:54:13,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:54:13,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:54:13,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:54:13" (1/1) ... [2023-12-03 02:54:13,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a746c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:13, skipping insertion in model container [2023-12-03 02:54:13,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:54:13" (1/1) ... [2023-12-03 02:54:13,609 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:54:14,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:54:14,437 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:54:14,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:54:14,705 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:14,705 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:14,705 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:14,706 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:14,714 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:54:14,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14 WrapperNode [2023-12-03 02:54:14,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:54:14,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:54:14,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:54:14,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:54:14,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,784 INFO L138 Inliner]: procedures = 498, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-12-03 02:54:14,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:54:14,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:54:14,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:54:14,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:54:14,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:54:14,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:54:14,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:54:14,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:54:14,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:14" (1/1) ... [2023-12-03 02:54:14,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:54:14,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:54:14,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:54:14,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:54:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 02:54:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 02:54:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:54:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:54:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:54:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 02:54:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:54:15,031 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:54:15,033 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:54:15,222 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:54:15,423 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:54:15,423 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 02:54:15,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:54:15 BoogieIcfgContainer [2023-12-03 02:54:15,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:54:15,426 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:54:15,426 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:54:15,437 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:54:15,438 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:54:15" (1/1) ... [2023-12-03 02:54:15,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:54:15,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-03 02:54:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-03 02:54:15,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 02:54:15,501 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:15,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:54:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:54:15,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:54:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:54:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:54:15,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:54:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:54:15,966 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 02:54:15,989 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet112 [2023-12-03 02:54:15,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:54:15 ImpRootNode [2023-12-03 02:54:15,995 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:54:15,996 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:54:15,996 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:54:15,996 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:54:15,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:54:15" (3/4) ... [2023-12-03 02:54:15,999 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 02:54:16,000 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:54:16,001 INFO L158 Benchmark]: Toolchain (without parser) took 2461.64ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 103.9MB in the beginning and 149.3MB in the end (delta: -45.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-12-03 02:54:16,002 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 140.5MB. Free memory was 107.8MB in the beginning and 107.7MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:54:16,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1174.45ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 103.5MB in the beginning and 153.1MB in the end (delta: -49.6MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2023-12-03 02:54:16,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.06ms. Allocated memory is still 192.9MB. Free memory was 153.1MB in the beginning and 150.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 02:54:16,004 INFO L158 Benchmark]: Boogie Preprocessor took 31.92ms. Allocated memory is still 192.9MB. Free memory was 150.0MB in the beginning and 148.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:54:16,005 INFO L158 Benchmark]: RCFGBuilder took 607.06ms. Allocated memory is still 192.9MB. Free memory was 148.9MB in the beginning and 111.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-03 02:54:16,005 INFO L158 Benchmark]: CodeCheck took 568.83ms. Allocated memory is still 192.9MB. Free memory was 111.2MB in the beginning and 149.3MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:54:16,006 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 192.9MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:54:16,009 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, 0.1s 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 large string literal at line 1566, 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={12:14}, 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 0.21ms. Allocated memory is still 140.5MB. Free memory was 107.8MB in the beginning and 107.7MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1174.45ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 103.5MB in the beginning and 153.1MB in the end (delta: -49.6MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.06ms. Allocated memory is still 192.9MB. Free memory was 153.1MB in the beginning and 150.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.92ms. Allocated memory is still 192.9MB. Free memory was 150.0MB in the beginning and 148.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 607.06ms. Allocated memory is still 192.9MB. Free memory was 148.9MB in the beginning and 111.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * CodeCheck took 568.83ms. Allocated memory is still 192.9MB. Free memory was 111.2MB in the beginning and 149.3MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 192.9MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet112 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 02:54:16,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/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_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/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_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9 --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 0.2.4-dev-0e0057c [2023-12-03 02:54:18,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:54:18,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 02:54:18,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:54:18,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:54:18,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:54:18,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:54:18,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:54:18,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:54:18,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:54:18,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:54:18,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:54:18,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:54:18,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:54:18,185 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 02:54:18,185 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 02:54:18,186 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:54:18,186 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 02:54:18,187 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:54:18,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:54:18,188 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:54:18,189 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:54:18,189 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:54:18,190 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:54:18,190 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:18,191 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 02:54:18,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:54:18,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:54:18,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:54:18,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:54:18,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:54:18,194 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 02:54:18,194 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:18,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:54:18,195 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 02:54:18,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 02:54:18,195 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_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4520eb0b0d8926e69b6bb597f4dba875b441bb352d43c1e5b4eee1e6dc28536d [2023-12-03 02:54:18,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:54:18,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:54:18,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:54:18,515 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:54:18,516 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:54:18,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i [2023-12-03 02:54:21,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:54:21,690 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:54:21,691 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_18_bad.i [2023-12-03 02:54:21,717 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/data/e20ca81b0/3a739499abe94050a0bc98d2d074d456/FLAG4477cbcd4 [2023-12-03 02:54:21,733 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/data/e20ca81b0/3a739499abe94050a0bc98d2d074d456 [2023-12-03 02:54:21,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:54:21,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:54:21,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:54:21,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:54:21,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:54:21,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:54:21" (1/1) ... [2023-12-03 02:54:21,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c09054e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:21, skipping insertion in model container [2023-12-03 02:54:21,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:54:21" (1/1) ... [2023-12-03 02:54:21,804 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:54:22,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:54:22,691 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:54:22,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:54:22,949 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:22,950 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:22,950 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:22,950 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:54:22,958 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:54:22,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22 WrapperNode [2023-12-03 02:54:22,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:54:22,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:54:22,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:54:22,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:54:22,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:22,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,022 INFO L138 Inliner]: procedures = 503, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-12-03 02:54:23,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:54:23,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:54:23,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:54:23,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:54:23,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:54:23,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:54:23,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:54:23,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:54:23,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:54:22" (1/1) ... [2023-12-03 02:54:23,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:54:23,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:54:23,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:54:23,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:54:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 02:54:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 02:54:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 02:54:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:54:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:54:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:54:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 02:54:23,292 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:54:23,294 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:54:23,424 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:54:23,486 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:54:23,486 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 02:54:23,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:54:23 BoogieIcfgContainer [2023-12-03 02:54:23,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:54:23,489 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:54:23,489 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:54:23,497 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:54:23,498 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:54:23" (1/1) ... [2023-12-03 02:54:23,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:54:23,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:54:23,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-03 02:54:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-03 02:54:23,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 02:54:23,560 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:54:23,561 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:54:23,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:54:23,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:54:23,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 02:54:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:54:23,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:54:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:54:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:54:23,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:54:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:54:23,920 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 02:54:23,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 02:54:23,927 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 02:54:23,946 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet106 [2023-12-03 02:54:23,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:54:23 ImpRootNode [2023-12-03 02:54:23,952 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:54:23,952 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:54:23,953 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:54:23,953 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:54:23,953 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:54:23" (3/4) ... [2023-12-03 02:54:23,956 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 02:54:23,957 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:54:23,958 INFO L158 Benchmark]: Toolchain (without parser) took 2220.45ms. Allocated memory is still 109.1MB. Free memory was 82.4MB in the beginning and 49.3MB in the end (delta: 33.2MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2023-12-03 02:54:23,958 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 43.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:54:23,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1219.87ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 49.2MB in the end (delta: 32.8MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2023-12-03 02:54:23,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.64ms. Allocated memory is still 109.1MB. Free memory was 49.2MB in the beginning and 46.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:54:23,960 INFO L158 Benchmark]: Boogie Preprocessor took 34.61ms. Allocated memory is still 109.1MB. Free memory was 46.0MB in the beginning and 44.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:54:23,961 INFO L158 Benchmark]: RCFGBuilder took 430.07ms. Allocated memory is still 109.1MB. Free memory was 44.4MB in the beginning and 66.0MB in the end (delta: -21.6MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2023-12-03 02:54:23,962 INFO L158 Benchmark]: CodeCheck took 462.89ms. Allocated memory is still 109.1MB. Free memory was 66.0MB in the beginning and 49.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 02:54:23,962 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 109.1MB. Free memory was 49.9MB in the beginning and 49.3MB in the end (delta: 633.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:54:23,966 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: 0.4s, 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 large string literal at line 1566. 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)=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 0.18ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 43.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1219.87ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 49.2MB in the end (delta: 32.8MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.64ms. Allocated memory is still 109.1MB. Free memory was 49.2MB in the beginning and 46.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.61ms. Allocated memory is still 109.1MB. Free memory was 46.0MB in the beginning and 44.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.07ms. Allocated memory is still 109.1MB. Free memory was 44.4MB in the beginning and 66.0MB in the end (delta: -21.6MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * CodeCheck took 462.89ms. Allocated memory is still 109.1MB. Free memory was 66.0MB in the beginning and 49.9MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.82ms. Allocated memory is still 109.1MB. Free memory was 49.9MB in the beginning and 49.3MB in the end (delta: 633.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet106 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 02:54:23,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b2dffaa-7503-496e-a20b-353a9ea46b14/bin/ukojak-verify-Qdu7aM0XO9/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 Result: UNKNOWN: Overapproximated counterexample