./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL --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 b85fcb39c63da04a151d0a921bfab3a8689c52b2ac3c3993f30d388670e551b2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:06:36,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:06:36,350 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 04:06:36,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:06:36,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:06:36,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:06:36,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:06:36,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:06:36,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:06:36,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:06:36,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:06:36,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:06:36,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:06:36,409 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:06:36,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:06:36,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:06:36,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:06:36,417 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:06:36,418 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:06:36,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:06:36,419 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:06:36,419 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:06:36,420 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:06:36,420 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:06:36,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:06:36,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:06:36,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:06:36,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:06:36,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:06:36,423 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:06:36,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:06:36,423 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:06:36,424 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_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85fcb39c63da04a151d0a921bfab3a8689c52b2ac3c3993f30d388670e551b2 [2023-11-19 04:06:36,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:06:36,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:06:36,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:06:36,760 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:06:36,761 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:06:36,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_good.i [2023-11-19 04:06:40,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:06:40,601 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:06:40,603 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_good.i [2023-11-19 04:06:40,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/data/6f524c391/242a29c14b3d4a3ba17b3ee39fe6192d/FLAG2fad9e31d [2023-11-19 04:06:40,667 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/data/6f524c391/242a29c14b3d4a3ba17b3ee39fe6192d [2023-11-19 04:06:40,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:06:40,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:06:40,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:06:40,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:06:40,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:06:40,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:40" (1/1) ... [2023-11-19 04:06:40,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e61d42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:40, skipping insertion in model container [2023-11-19 04:06:40,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:40" (1/1) ... [2023-11-19 04:06:40,775 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:06:41,220 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:06:41,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:06:41,974 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:06:41,998 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:06:42,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:06:42,319 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:42,320 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:42,320 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:42,320 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:42,321 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:42,321 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:06:42,330 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:06:42,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42 WrapperNode [2023-11-19 04:06:42,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:06:42,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:06:42,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:06:42,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:06:42,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,440 INFO L138 Inliner]: procedures = 502, calls = 85, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 118 [2023-11-19 04:06:42,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:06:42,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:06:42,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:06:42,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:06:42,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:06:42,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:06:42,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:06:42,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:06:42,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:06:42,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:06:42,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:06:42,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:06:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 04:06:42,565 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 04:06:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:06:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-11-19 04:06:42,565 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-11-19 04:06:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:06:42,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:06:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:06:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:06:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:06:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:06:42,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:06:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:06:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:06:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:06:42,779 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:06:42,783 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:06:43,104 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:06:43,205 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:06:43,205 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:06:43,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:43 BoogieIcfgContainer [2023-11-19 04:06:43,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:06:43,215 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:06:43,215 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:06:43,225 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:06:43,225 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:43" (1/1) ... [2023-11-19 04:06:43,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:06:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:43,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 63 states and 84 transitions. [2023-11-19 04:06:43,300 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 84 transitions. [2023-11-19 04:06:43,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:06:43,307 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:43,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:06:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:43,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 62 states and 83 transitions. [2023-11-19 04:06:43,838 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2023-11-19 04:06:43,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:06:43,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:43,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:06:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 61 states and 82 transitions. [2023-11-19 04:06:44,022 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 82 transitions. [2023-11-19 04:06:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:06:44,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:44,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:06:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 60 states and 81 transitions. [2023-11-19 04:06:44,265 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2023-11-19 04:06:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:06:44,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:44,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 04:06:44,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 59 states and 80 transitions. [2023-11-19 04:06:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-11-19 04:06:44,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 04:06:44,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:44,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:44,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 04:06:44,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:44,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 58 states and 79 transitions. [2023-11-19 04:06:44,702 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-11-19 04:06:44,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 04:06:44,707 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:44,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 04:06:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:44,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 78 transitions. [2023-11-19 04:06:44,892 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 78 transitions. [2023-11-19 04:06:44,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 04:06:44,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:44,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 04:06:45,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:45,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 56 states and 77 transitions. [2023-11-19 04:06:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2023-11-19 04:06:45,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 04:06:45,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:45,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 04:06:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:45,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 55 states and 76 transitions. [2023-11-19 04:06:45,204 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2023-11-19 04:06:45,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:06:45,206 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-19 04:06:45,226 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-19 04:06:45,303 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 04:06:45,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:06:45 ImpRootNode [2023-11-19 04:06:45,308 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:06:45,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:06:45,309 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:06:45,310 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:06:45,310 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:43" (3/4) ... [2023-11-19 04:06:45,312 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:06:45,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 04:06:45,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2023-11-19 04:06:45,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 04:06:45,325 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-19 04:06:45,326 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 04:06:45,326 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 04:06:45,327 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:06:45,327 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:06:45,477 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:06:45,477 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 04:06:45,477 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:06:45,478 INFO L158 Benchmark]: Toolchain (without parser) took 4802.08ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 120.8MB in the beginning and 117.0MB in the end (delta: 3.8MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2023-11-19 04:06:45,478 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 169.9MB. Free memory is still 144.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:06:45,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1651.53ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 96.2MB in the end (delta: 24.4MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-11-19 04:06:45,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.53ms. Allocated memory is still 169.9MB. Free memory was 96.2MB in the beginning and 93.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:06:45,481 INFO L158 Benchmark]: Boogie Preprocessor took 43.71ms. Allocated memory is still 169.9MB. Free memory was 93.0MB in the beginning and 91.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:06:45,481 INFO L158 Benchmark]: RCFGBuilder took 727.75ms. Allocated memory is still 169.9MB. Free memory was 91.5MB in the beginning and 130.5MB in the end (delta: -39.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:06:45,482 INFO L158 Benchmark]: CodeCheck took 2092.73ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 130.5MB in the beginning and 122.2MB in the end (delta: 8.3MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2023-11-19 04:06:45,482 INFO L158 Benchmark]: Witness Printer took 168.55ms. Allocated memory is still 218.1MB. Free memory was 122.2MB in the beginning and 117.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:06:45,485 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 4 procedures, 63 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 668 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 382 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 337 IncrementalHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 360 mSDtfsCounter, 337 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1415 GetRequests, 1400 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 56/56 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 - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1635]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1635]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1650]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 169.9MB. Free memory is still 144.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1651.53ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 96.2MB in the end (delta: 24.4MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.53ms. Allocated memory is still 169.9MB. Free memory was 96.2MB in the beginning and 93.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.71ms. Allocated memory is still 169.9MB. Free memory was 93.0MB in the beginning and 91.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 727.75ms. Allocated memory is still 169.9MB. Free memory was 91.5MB in the beginning and 130.5MB in the end (delta: -39.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 2092.73ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 130.5MB in the beginning and 122.2MB in the end (delta: 8.3MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Witness Printer took 168.55ms. Allocated memory is still 218.1MB. Free memory was 122.2MB in the beginning and 117.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 04:06:45,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4203458d-afa7-40bd-8d32-2c9efc8345d4/bin/ukojak-verify-G8NBE6pJGL/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: TRUE