./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi --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 9aa5952472dbeb6618cec7fdd0bb8055353b44c3217fc947526ab45fd071ee87 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:08:58,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:58,294 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 23:08:58,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:08:58,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:08:58,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:58,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:08:58,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:08:58,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:58,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:58,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:58,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:58,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:08:58,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:08:58,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:08:58,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:08:58,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:08:58,364 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:08:58,365 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:08:58,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:08:58,365 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:08:58,366 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:08:58,367 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:08:58,367 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:08:58,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:08:58,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:58,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:08:58,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:08:58,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:08:58,369 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:08:58,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:08:58,370 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:08:58,370 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_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9aa5952472dbeb6618cec7fdd0bb8055353b44c3217fc947526ab45fd071ee87 [2023-11-24 23:08:58,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:08:58,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:08:58,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:08:58,758 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:08:58,759 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:08:58,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_good.i [2023-11-24 23:09:01,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:09:02,411 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:09:02,411 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_good.i [2023-11-24 23:09:02,442 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/data/29fdac7ef/240804fd48434f4cac3345b85c1fedaf/FLAG483104e80 [2023-11-24 23:09:02,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/data/29fdac7ef/240804fd48434f4cac3345b85c1fedaf [2023-11-24 23:09:02,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:09:02,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:09:02,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:09:02,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:09:02,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:09:02,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:09:02" (1/1) ... [2023-11-24 23:09:02,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1cb3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:02, skipping insertion in model container [2023-11-24 23:09:02,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:09:02" (1/1) ... [2023-11-24 23:09:02,530 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:09:03,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:09:03,766 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:09:03,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:09:04,139 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:09:04,140 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:09:04,140 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:09:04,140 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:09:04,140 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:09:04,148 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:09:04,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04 WrapperNode [2023-11-24 23:09:04,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:09:04,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:09:04,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:09:04,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:09:04,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,255 INFO L138 Inliner]: procedures = 503, calls = 78, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 90 [2023-11-24 23:09:04,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:09:04,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:09:04,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:09:04,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:09:04,271 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:09:04,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:09:04,323 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:09:04,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:09:04,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:09:04,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:09:04,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:09:04,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:09:04,401 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 23:09:04,401 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 23:09:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 23:09:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:09:04,402 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:09:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:09:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:09:04,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:09:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:09:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:09:04,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:09:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:09:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:09:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:09:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:09:04,583 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:09:04,586 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:09:04,801 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:09:04,869 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:09:04,869 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:09:04,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:09:04 BoogieIcfgContainer [2023-11-24 23:09:04,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:09:04,872 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:09:04,872 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:09:04,888 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:09:04,888 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:09:04" (1/1) ... [2023-11-24 23:09:04,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:09:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:09:04,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2023-11-24 23:09:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-24 23:09:04,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:09:04,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:09:04,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:09:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:09:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:09:05,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:09:05,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 39 transitions. [2023-11-24 23:09:05,628 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-24 23:09:05,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:09:05,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:09:05,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:09:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:09:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:09:05,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:09:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2023-11-24 23:09:05,753 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-24 23:09:05,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:09:05,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:09:05,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:09:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:09:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:09:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:09:05,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2023-11-24 23:09:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-24 23:09:05,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:09:05,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:09:05,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:09:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:09:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:09:06,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:09:06,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2023-11-24 23:09:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2023-11-24 23:09:06,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:09:06,183 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-24 23:09:06,193 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-24 23:09:06,236 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:09:06,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:09:06 ImpRootNode [2023-11-24 23:09:06,241 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:09:06,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:09:06,242 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:09:06,242 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:09:06,243 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:09:04" (3/4) ... [2023-11-24 23:09:06,245 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:09:06,248 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-24 23:09:06,249 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-24 23:09:06,254 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-24 23:09:06,255 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-24 23:09:06,255 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-24 23:09:06,256 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:09:06,378 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:09:06,378 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:09:06,379 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:09:06,379 INFO L158 Benchmark]: Toolchain (without parser) took 3918.01ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 78.3MB in the beginning and 103.8MB in the end (delta: -25.5MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2023-11-24 23:09:06,380 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:09:06,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1686.94ms. Allocated memory is still 125.8MB. Free memory was 78.0MB in the beginning and 65.3MB in the end (delta: 12.7MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-11-24 23:09:06,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.77ms. Allocated memory is still 125.8MB. Free memory was 65.3MB in the beginning and 62.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:09:06,381 INFO L158 Benchmark]: Boogie Preprocessor took 61.22ms. Allocated memory is still 125.8MB. Free memory was 62.3MB in the beginning and 60.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:09:06,382 INFO L158 Benchmark]: RCFGBuilder took 548.46ms. Allocated memory is still 125.8MB. Free memory was 60.2MB in the beginning and 90.7MB in the end (delta: -30.5MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2023-11-24 23:09:06,382 INFO L158 Benchmark]: CodeCheck took 1368.79ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 90.7MB in the beginning and 110.1MB in the end (delta: -19.4MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-24 23:09:06,383 INFO L158 Benchmark]: Witness Printer took 137.20ms. Allocated memory is still 165.7MB. Free memory was 110.1MB in the beginning and 103.8MB in the end (delta: 6.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:09:06,385 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, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 54 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 292 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - PositiveResult [Line: 1596]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1596]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1607]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1607]: 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: 1588]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1686.94ms. Allocated memory is still 125.8MB. Free memory was 78.0MB in the beginning and 65.3MB in the end (delta: 12.7MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.77ms. Allocated memory is still 125.8MB. Free memory was 65.3MB in the beginning and 62.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.22ms. Allocated memory is still 125.8MB. Free memory was 62.3MB in the beginning and 60.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.46ms. Allocated memory is still 125.8MB. Free memory was 60.2MB in the beginning and 90.7MB in the end (delta: -30.5MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * CodeCheck took 1368.79ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 90.7MB in the beginning and 110.1MB in the end (delta: -19.4MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Witness Printer took 137.20ms. Allocated memory is still 165.7MB. Free memory was 110.1MB in the beginning and 103.8MB in the end (delta: 6.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:09:06,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83859a8b-b5bd-46b2-8d64-d444d1b1bb6a/bin/ukojak-verify-afCqCEvfdi/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