./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/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_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/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_207e1aba-8526-460e-9a83-7b6a4faa435a/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 2b25f93e005c307e3c87bc20765da76bb2f5da227fe791f7d0b0df7514fe2ebf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:43:36,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:43:36,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:43:36,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:43:36,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:43:36,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:43:36,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:43:36,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:43:36,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:43:36,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:43:36,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:43:36,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:43:36,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:43:36,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:43:36,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:43:36,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:43:36,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:43:36,562 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:43:36,562 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:43:36,562 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:43:36,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:43:36,563 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:43:36,564 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:43:36,565 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:43:36,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:43:36,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:43:36,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:43:36,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:43:36,567 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:43:36,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:43:36,569 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:43:36,569 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_207e1aba-8526-460e-9a83-7b6a4faa435a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b25f93e005c307e3c87bc20765da76bb2f5da227fe791f7d0b0df7514fe2ebf [2023-11-11 23:43:36,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:43:36,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:43:36,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:43:36,932 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:43:36,933 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:43:36,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_good.i [2023-11-11 23:43:40,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:43:40,487 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:43:40,491 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_good.i [2023-11-11 23:43:40,528 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/data/b4784e615/48cc213063214cbf81add571ab2052e4/FLAGc82a61075 [2023-11-11 23:43:40,547 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/data/b4784e615/48cc213063214cbf81add571ab2052e4 [2023-11-11 23:43:40,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:43:40,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:43:40,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:43:40,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:43:40,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:43:40,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:43:40" (1/1) ... [2023-11-11 23:43:40,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1156c933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:40, skipping insertion in model container [2023-11-11 23:43:40,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:43:40" (1/1) ... [2023-11-11 23:43:40,647 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:43:41,184 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:43:41,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:43:41,891 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:43:41,912 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:43:41,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:43:42,129 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:43:42,129 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:43:42,130 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:43:42,130 WARN L672 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:43:42,130 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:43:42,130 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:43:42,131 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:43:42,138 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:43:42,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42 WrapperNode [2023-11-11 23:43:42,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:43:42,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:43:42,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:43:42,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:43:42,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,201 INFO L138 Inliner]: procedures = 505, calls = 73, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 74 [2023-11-11 23:43:42,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:43:42,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:43:42,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:43:42,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:43:42,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:43:42,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:43:42,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:43:42,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:43:42,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:43:42,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:43:42,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:43:42,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:43:42,337 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-11 23:43:42,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-11 23:43:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-11 23:43:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:43:42,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:43:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:43:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-11 23:43:42,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:43:42,339 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-11 23:43:42,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-11 23:43:42,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:43:42,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:43:42,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:43:42,339 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:43:42,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:43:42,529 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:43:42,531 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:43:42,714 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:43:42,765 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:43:42,765 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:43:42,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:42 BoogieIcfgContainer [2023-11-11 23:43:42,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:43:42,769 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:43:42,769 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:43:42,779 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:43:42,779 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:42" (1/1) ... [2023-11-11 23:43:42,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:43:42,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:42,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 36 states and 43 transitions. [2023-11-11 23:43:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-11-11 23:43:42,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:43:42,858 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:42,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:43,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:43,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 48 transitions. [2023-11-11 23:43:43,389 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2023-11-11 23:43:43,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:43:43,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:43,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:43,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:43,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 47 transitions. [2023-11-11 23:43:43,592 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2023-11-11 23:43:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:43:43,593 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:43,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 53 transitions. [2023-11-11 23:43:44,279 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-11 23:43:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:43:44,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:44,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:44,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:44,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 44 states and 56 transitions. [2023-11-11 23:43:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2023-11-11 23:43:44,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-11 23:43:44,954 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:44,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:45,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:45,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 48 states and 63 transitions. [2023-11-11 23:43:45,716 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2023-11-11 23:43:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-11 23:43:45,717 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:45,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:46,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 54 states and 73 transitions. [2023-11-11 23:43:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2023-11-11 23:43:46,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-11 23:43:46,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:43:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 57 states and 76 transitions. [2023-11-11 23:43:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2023-11-11 23:43:47,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-11 23:43:47,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:43:47,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:43:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:43:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:43:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:43:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 42 states and 54 transitions. [2023-11-11 23:43:48,197 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2023-11-11 23:43:48,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:43:48,198 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-11 23:43:48,207 INFO L753 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-11 23:43:48,297 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:43:48,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:43:48 ImpRootNode [2023-11-11 23:43:48,304 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:43:48,305 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:43:48,305 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:43:48,305 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:43:48,306 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:43:42" (3/4) ... [2023-11-11 23:43:48,308 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:43:48,312 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-11 23:43:48,313 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-11 23:43:48,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~int~TO~VOID [2023-11-11 23:43:48,321 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-11 23:43:48,322 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-11 23:43:48,322 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-11 23:43:48,322 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:43:48,450 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:43:48,450 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:43:48,450 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:43:48,451 INFO L158 Benchmark]: Toolchain (without parser) took 7893.63ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 120.5MB in the beginning and 71.6MB in the end (delta: 48.9MB). Peak memory consumption was 101.8MB. Max. memory is 16.1GB. [2023-11-11 23:43:48,452 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory was 66.1MB in the beginning and 66.0MB in the end (delta: 120.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:43:48,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1580.16ms. Allocated memory is still 155.2MB. Free memory was 120.1MB in the beginning and 110.0MB in the end (delta: 10.1MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2023-11-11 23:43:48,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.51ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 106.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:43:48,453 INFO L158 Benchmark]: Boogie Preprocessor took 31.75ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 105.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:43:48,453 INFO L158 Benchmark]: RCFGBuilder took 533.54ms. Allocated memory is still 155.2MB. Free memory was 105.0MB in the beginning and 89.0MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-11 23:43:48,454 INFO L158 Benchmark]: CodeCheck took 5534.85ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 89.0MB in the beginning and 76.8MB in the end (delta: 12.2MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2023-11-11 23:43:48,455 INFO L158 Benchmark]: Witness Printer took 145.93ms. Allocated memory is still 207.6MB. Free memory was 76.8MB in the beginning and 71.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:43:48,460 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, 36 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 375 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 278 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 227 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 613 IncrementalHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 227 mSolverCounterUnsat, 226 mSDtfsCounter, 613 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1156 GetRequests, 1057 SyntacticMatches, 7 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2537 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 14/14 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: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: 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: 1586]: 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 111.1MB. Free memory was 66.1MB in the beginning and 66.0MB in the end (delta: 120.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1580.16ms. Allocated memory is still 155.2MB. Free memory was 120.1MB in the beginning and 110.0MB in the end (delta: 10.1MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.51ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 106.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.75ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 105.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 533.54ms. Allocated memory is still 155.2MB. Free memory was 105.0MB in the beginning and 89.0MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 5534.85ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 89.0MB in the beginning and 76.8MB in the end (delta: 12.2MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * Witness Printer took 145.93ms. Allocated memory is still 207.6MB. Free memory was 76.8MB in the beginning and 71.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:43:48,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207e1aba-8526-460e-9a83-7b6a4faa435a/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