./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2 --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 f3a73c7c66526f7d2c83b9de5e0128041b2d8912d9b7d4689f7b3a18250d83df --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:29:49,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:29:50,087 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:29:50,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:29:50,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:29:50,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:29:50,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:29:50,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:29:50,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:29:50,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:29:50,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:29:50,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:29:50,160 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:29:50,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:29:50,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:29:50,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:29:50,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:29:50,164 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:29:50,164 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:29:50,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:29:50,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:29:50,167 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:29:50,167 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:29:50,168 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:29:50,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:29:50,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:29:50,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:29:50,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:29:50,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:29:50,171 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:29:50,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:29:50,173 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:29:50,174 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_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3a73c7c66526f7d2c83b9de5e0128041b2d8912d9b7d4689f7b3a18250d83df [2023-11-21 18:29:50,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:29:50,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:29:50,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:29:50,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:29:50,514 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:29:50,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_good.i [2023-11-21 18:29:53,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:29:54,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:29:54,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_52_good.i [2023-11-21 18:29:54,412 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/data/fe699a10a/923fdf0089c54649907ed322e125eee4/FLAGcdfc5e0dd [2023-11-21 18:29:54,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/data/fe699a10a/923fdf0089c54649907ed322e125eee4 [2023-11-21 18:29:54,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:29:54,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:29:54,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:29:54,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:29:54,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:29:54,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8af56ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:54, skipping insertion in model container [2023-11-21 18:29:54,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:29:54" (1/1) ... [2023-11-21 18:29:54,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:29:54,971 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:29:55,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:29:55,574 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:29:55,613 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:29:55,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:29:55,894 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:29:55,895 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:29:55,895 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:29:55,896 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:29:55,896 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:29:55,896 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:29:55,904 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:29:55,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55 WrapperNode [2023-11-21 18:29:55,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:29:55,906 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:29:55,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:29:55,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:29:55,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:55,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:55,990 INFO L138 Inliner]: procedures = 506, calls = 73, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 72 [2023-11-21 18:29:55,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:29:55,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:29:55,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:29:55,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:29:56,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:29:56,025 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:29:56,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:29:56,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:29:56,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:29:55" (1/1) ... [2023-11-21 18:29:56,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:29:56,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:29:56,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:29:56,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:29:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-21 18:29:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-21 18:29:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:29:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:29:56,104 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:29:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:29:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:29:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:29:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:29:56,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:29:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:29:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:29:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:29:56,265 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:29:56,267 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:29:56,440 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:29:56,511 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:29:56,511 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:29:56,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:29:56 BoogieIcfgContainer [2023-11-21 18:29:56,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:29:56,514 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:29:56,514 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:29:56,529 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:29:56,529 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:29:56" (1/1) ... [2023-11-21 18:29:56,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:29:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:29:56,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2023-11-21 18:29:56,612 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-21 18:29:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:29:56,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:29:56,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:29:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:29:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:29:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:29:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2023-11-21 18:29:57,112 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-21 18:29:57,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:29:57,113 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:29:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:29:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:29:57,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:29:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:29:57,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2023-11-21 18:29:57,286 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2023-11-21 18:29:57,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:29:57,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:29:57,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:29:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:29:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:29:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:29:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2023-11-21 18:29:57,454 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-21 18:29:57,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:29:57,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:29:57,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:29:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:29:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:29:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:29:57,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2023-11-21 18:29:57,620 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2023-11-21 18:29:57,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:29:57,621 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-21 18:29:57,632 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-21 18:29:57,672 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:29:57,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:29:57 ImpRootNode [2023-11-21 18:29:57,677 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:29:57,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:29:57,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:29:57,679 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:29:57,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:29:56" (3/4) ... [2023-11-21 18:29:57,682 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:29:57,687 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-21 18:29:57,687 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-21 18:29:57,693 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-21 18:29:57,694 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 18:29:57,695 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 18:29:57,695 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:29:57,843 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:29:57,844 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:29:57,844 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:29:57,845 INFO L158 Benchmark]: Toolchain (without parser) took 3402.54ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 73.1MB in the end (delta: 35.5MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2023-11-21 18:29:57,846 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:29:57,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1459.20ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 91.1MB in the end (delta: 17.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-21 18:29:57,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.98ms. Allocated memory is still 157.3MB. Free memory was 91.1MB in the beginning and 87.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:29:57,847 INFO L158 Benchmark]: Boogie Preprocessor took 33.31ms. Allocated memory is still 157.3MB. Free memory was 87.8MB in the beginning and 86.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:29:57,847 INFO L158 Benchmark]: RCFGBuilder took 487.52ms. Allocated memory is still 157.3MB. Free memory was 86.3MB in the beginning and 70.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:29:57,849 INFO L158 Benchmark]: CodeCheck took 1163.85ms. Allocated memory is still 157.3MB. Free memory was 70.1MB in the beginning and 77.7MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:29:57,850 INFO L158 Benchmark]: Witness Printer took 166.30ms. Allocated memory is still 157.3MB. Free memory was 77.7MB in the beginning and 73.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:29:57,852 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, 31 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 52 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 294 GetRequests, 282 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, 0.5s 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: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: 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: 1584]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1459.20ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 91.1MB in the end (delta: 17.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.98ms. Allocated memory is still 157.3MB. Free memory was 91.1MB in the beginning and 87.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.31ms. Allocated memory is still 157.3MB. Free memory was 87.8MB in the beginning and 86.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.52ms. Allocated memory is still 157.3MB. Free memory was 86.3MB in the beginning and 70.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1163.85ms. Allocated memory is still 157.3MB. Free memory was 70.1MB in the beginning and 77.7MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 166.30ms. Allocated memory is still 157.3MB. Free memory was 77.7MB in the beginning and 73.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:29:57,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ce5c401-8ff8-43f2-8d74-aed5f0849f4f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE