./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV --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 b8aa41edb4db6a5212ff1dac96bdf68329703d0d3d8e4e1771162d29074cf1aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:59:59,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:59:59,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:59:59,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:59:59,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:59:59,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:59:59,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:59:59,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:59:59,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:59:59,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:59:59,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:59:59,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:59:59,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:59:59,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:59:59,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:59:59,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:59:59,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:59:59,491 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:59:59,492 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:59:59,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:59:59,493 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:59:59,495 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:59:59,496 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:59:59,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:59:59,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:59:59,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:59:59,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:59:59,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:59:59,499 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:59:59,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:59:59,501 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:59:59,502 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_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8aa41edb4db6a5212ff1dac96bdf68329703d0d3d8e4e1771162d29074cf1aa [2023-11-11 23:59:59,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:59:59,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:59:59,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:59:59,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:59:59,791 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:59:59,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_good.i [2023-11-12 00:00:03,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:00:03,643 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:00:03,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_good.i [2023-11-12 00:00:03,676 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/data/2b08490cb/d198f90794634b259ab1edddd23f012a/FLAG51fa0fd45 [2023-11-12 00:00:03,695 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/data/2b08490cb/d198f90794634b259ab1edddd23f012a [2023-11-12 00:00:03,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:00:03,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:00:03,708 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:00:03,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:00:03,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:00:03,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:00:03" (1/1) ... [2023-11-12 00:00:03,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cec4c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:03, skipping insertion in model container [2023-11-12 00:00:03,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:00:03" (1/1) ... [2023-11-12 00:00:03,813 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:00:04,283 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:00:04,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:00:05,005 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:00:05,042 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:00:05,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:00:05,368 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:00:05,369 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:00:05,369 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:00:05,369 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:00:05,370 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:00:05,370 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:00:05,380 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:00:05,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05 WrapperNode [2023-11-12 00:00:05,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:00:05,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:00:05,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:00:05,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:00:05,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,503 INFO L138 Inliner]: procedures = 504, calls = 71, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 77 [2023-11-12 00:00:05,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:00:05,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:00:05,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:00:05,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:00:05,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:00:05,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:00:05,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:00:05,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:00:05,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:00:05" (1/1) ... [2023-11-12 00:00:05,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:00:05,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:00:05,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:00:05,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:00:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-12 00:00:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-12 00:00:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-12 00:00:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-12 00:00:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-12 00:00:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:00:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:00:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:00:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:00:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:00:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:00:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-12 00:00:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:00:05,874 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:00:05,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:00:06,058 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:00:06,120 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:00:06,120 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:00:06,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:00:06 BoogieIcfgContainer [2023-11-12 00:00:06,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:00:06,124 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:00:06,124 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:00:06,154 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:00:06,154 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:00:06" (1/1) ... [2023-11-12 00:00:06,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:00:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-12 00:00:06,237 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-12 00:00:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:00:06,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:06,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:00:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2023-11-12 00:00:06,622 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-12 00:00:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:00:06,623 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:06,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:00:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:06,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2023-11-12 00:00:06,868 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-12 00:00:06,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:00:06,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:06,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:07,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:00:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2023-11-12 00:00:07,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-12 00:00:07,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:00:07,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:07,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:00:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:07,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2023-11-12 00:00:07,375 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-12 00:00:07,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:00:07,376 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:07,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:00:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 29 transitions. [2023-11-12 00:00:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-11-12 00:00:07,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:00:07,731 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-12 00:00:07,743 INFO L753 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-12 00:00:07,785 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:00:07,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:00:07 ImpRootNode [2023-11-12 00:00:07,790 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:00:07,791 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:00:07,791 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:00:07,792 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:00:07,792 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:00:06" (3/4) ... [2023-11-12 00:00:07,799 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:00:07,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-12 00:00:07,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-12 00:00:07,812 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-12 00:00:07,812 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 00:00:07,813 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:00:07,813 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:00:07,912 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:00:07,913 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-12 00:00:07,913 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:00:07,914 INFO L158 Benchmark]: Toolchain (without parser) took 4207.66ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 77.0MB in the beginning and 68.9MB in the end (delta: 8.1MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2023-11-12 00:00:07,914 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:00:07,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1672.88ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 77.0MB in the beginning and 99.3MB in the end (delta: -22.3MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2023-11-12 00:00:07,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.08ms. Allocated memory is still 174.1MB. Free memory was 99.3MB in the beginning and 96.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:00:07,916 INFO L158 Benchmark]: Boogie Preprocessor took 37.88ms. Allocated memory is still 174.1MB. Free memory was 96.2MB in the beginning and 95.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:00:07,917 INFO L158 Benchmark]: RCFGBuilder took 579.99ms. Allocated memory is still 174.1MB. Free memory was 95.1MB in the beginning and 78.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:00:07,917 INFO L158 Benchmark]: CodeCheck took 1666.08ms. Allocated memory is still 174.1MB. Free memory was 78.3MB in the beginning and 74.0MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:00:07,918 INFO L158 Benchmark]: Witness Printer took 121.55ms. Allocated memory is still 174.1MB. Free memory was 73.0MB in the beginning and 68.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:00:07,921 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 3 procedures, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 76 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 418 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1589]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1672.88ms. Allocated memory was 125.8MB in the beginning and 174.1MB in the end (delta: 48.2MB). Free memory was 77.0MB in the beginning and 99.3MB in the end (delta: -22.3MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.08ms. Allocated memory is still 174.1MB. Free memory was 99.3MB in the beginning and 96.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.88ms. Allocated memory is still 174.1MB. Free memory was 96.2MB in the beginning and 95.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 579.99ms. Allocated memory is still 174.1MB. Free memory was 95.1MB in the beginning and 78.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1666.08ms. Allocated memory is still 174.1MB. Free memory was 78.3MB in the beginning and 74.0MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Witness Printer took 121.55ms. Allocated memory is still 174.1MB. Free memory was 73.0MB in the beginning and 68.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-12 00:00:07,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc40514-1879-4842-a1cc-2b6a5dd25f45/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE