./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c0a0030ffa27dca5bb14131b70d3aa8b11940565f5178ee0497f1eeb9a0fdf14 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:58:39,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:58:39,953 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:58:39,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:58:39,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:58:39,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:58:39,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:58:39,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:58:39,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:58:39,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:58:39,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:58:39,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:58:39,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:58:39,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:58:39,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:58:39,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:58:39,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:58:39,992 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:58:39,992 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:58:39,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:58:39,993 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:58:39,994 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:58:39,994 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:58:39,995 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:58:39,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:58:39,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:58:39,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:58:39,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:58:39,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:58:39,998 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:58:39,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:58:39,999 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:58:39,999 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_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0a0030ffa27dca5bb14131b70d3aa8b11940565f5178ee0497f1eeb9a0fdf14 [2023-11-19 02:58:40,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:58:40,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:58:40,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:58:40,355 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:58:40,358 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:58:40,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i [2023-11-19 02:58:43,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:58:43,952 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:58:43,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_12_good.i [2023-11-19 02:58:43,978 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/data/5fcbad572/1fb4591429a54133b0ea947f8f17be9c/FLAGeec933928 [2023-11-19 02:58:43,993 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/data/5fcbad572/1fb4591429a54133b0ea947f8f17be9c [2023-11-19 02:58:43,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:58:43,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:58:43,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:58:43,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:58:44,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:58:44,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:43" (1/1) ... [2023-11-19 02:58:44,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80a1ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:44, skipping insertion in model container [2023-11-19 02:58:44,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:43" (1/1) ... [2023-11-19 02:58:44,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:58:44,464 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:58:45,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:58:45,088 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:58:45,123 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:58:45,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:58:45,392 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:58:45,392 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:58:45,392 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:58:45,392 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:58:45,392 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:58:45,392 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:58:45,411 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:58:45,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45 WrapperNode [2023-11-19 02:58:45,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:58:45,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:58:45,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:58:45,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:58:45,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,520 INFO L138 Inliner]: procedures = 502, calls = 85, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 126 [2023-11-19 02:58:45,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:58:45,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:58:45,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:58:45,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:58:45,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:58:45,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:58:45,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:58:45,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:58:45,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:45" (1/1) ... [2023-11-19 02:58:45,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:58:45,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:58:45,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:58:45,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:58:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 02:58:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 02:58:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 02:58:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-11-19 02:58:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-11-19 02:58:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:58:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:58:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:58:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 02:58:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:58:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:58:45,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:58:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:58:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:58:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:58:45,897 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:58:45,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:58:46,161 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:58:46,200 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:58:46,200 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:58:46,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:46 BoogieIcfgContainer [2023-11-19 02:58:46,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:58:46,206 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:58:46,206 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:58:46,217 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:58:46,217 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:46" (1/1) ... [2023-11-19 02:58:46,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:58:46,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2023-11-19 02:58:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2023-11-19 02:58:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:58:46,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:46,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:46,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:58:46,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:46,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 58 states and 75 transitions. [2023-11-19 02:58:46,821 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2023-11-19 02:58:46,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:58:46,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:46,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:47,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:58:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 57 states and 74 transitions. [2023-11-19 02:58:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2023-11-19 02:58:47,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:58:47,057 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:47,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:47,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:58:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:47,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 64 states and 85 transitions. [2023-11-19 02:58:47,315 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2023-11-19 02:58:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:58:47,317 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:47,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:47,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:58:47,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:47,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 67 states and 88 transitions. [2023-11-19 02:58:47,497 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2023-11-19 02:58:47,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 02:58:47,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:47,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:47,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:58:47,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:47,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 68 states and 89 transitions. [2023-11-19 02:58:47,591 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 89 transitions. [2023-11-19 02:58:47,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:58:47,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:47,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 02:58:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:47,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 67 states and 87 transitions. [2023-11-19 02:58:47,838 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2023-11-19 02:58:47,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:58:47,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:47,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:47,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 02:58:47,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:47,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 55 states and 72 transitions. [2023-11-19 02:58:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2023-11-19 02:58:47,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:47,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:47,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 02:58:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:48,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 54 states and 71 transitions. [2023-11-19 02:58:48,189 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2023-11-19 02:58:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:48,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:48,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 02:58:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 53 states and 70 transitions. [2023-11-19 02:58:48,366 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2023-11-19 02:58:48,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 02:58:48,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:48,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:48,505 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 02:58:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:48,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 52 states and 69 transitions. [2023-11-19 02:58:48,720 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2023-11-19 02:58:48,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 02:58:48,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:48,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 02:58:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 51 states and 68 transitions. [2023-11-19 02:58:49,012 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2023-11-19 02:58:49,013 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:58:49,014 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-19 02:58:49,030 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-19 02:58:49,108 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:58:49,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:58:49 ImpRootNode [2023-11-19 02:58:49,114 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:58:49,115 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:58:49,115 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:58:49,115 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:58:49,116 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:46" (3/4) ... [2023-11-19 02:58:49,120 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:58:49,123 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 02:58:49,124 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2023-11-19 02:58:49,124 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 02:58:49,131 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-19 02:58:49,132 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 02:58:49,133 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 02:58:49,133 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:58:49,134 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:58:49,262 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:58:49,263 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:58:49,263 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:58:49,264 INFO L158 Benchmark]: Toolchain (without parser) took 5266.93ms. Allocated memory was 169.9MB in the beginning and 207.6MB in the end (delta: 37.7MB). Free memory was 137.9MB in the beginning and 104.3MB in the end (delta: 33.6MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2023-11-19 02:58:49,264 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:58:49,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1413.59ms. Allocated memory is still 169.9MB. Free memory was 137.9MB in the beginning and 132.5MB in the end (delta: 5.5MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-19 02:58:49,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.58ms. Allocated memory is still 169.9MB. Free memory was 132.5MB in the beginning and 129.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:58:49,266 INFO L158 Benchmark]: Boogie Preprocessor took 33.95ms. Allocated memory is still 169.9MB. Free memory was 129.3MB in the beginning and 128.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:58:49,266 INFO L158 Benchmark]: RCFGBuilder took 649.88ms. Allocated memory is still 169.9MB. Free memory was 128.2MB in the beginning and 108.3MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 02:58:49,267 INFO L158 Benchmark]: CodeCheck took 2907.78ms. Allocated memory was 169.9MB in the beginning and 207.6MB in the end (delta: 37.7MB). Free memory was 108.3MB in the beginning and 110.5MB in the end (delta: -2.1MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2023-11-19 02:58:49,267 INFO L158 Benchmark]: Witness Printer took 148.86ms. Allocated memory is still 207.6MB. Free memory was 110.5MB in the beginning and 104.3MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 02:58:49,269 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, 59 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 959 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 855 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 206 mSDsCounter, 204 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 522 IncrementalHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 204 mSolverCounterUnsat, 649 mSDtfsCounter, 522 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2020 GetRequests, 1954 SyntacticMatches, 30 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 263 ConstructedInterpolants, 0 QuantifiedInterpolants, 433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 74/74 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: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1646]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1413.59ms. Allocated memory is still 169.9MB. Free memory was 137.9MB in the beginning and 132.5MB in the end (delta: 5.5MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.58ms. Allocated memory is still 169.9MB. Free memory was 132.5MB in the beginning and 129.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.95ms. Allocated memory is still 169.9MB. Free memory was 129.3MB in the beginning and 128.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 649.88ms. Allocated memory is still 169.9MB. Free memory was 128.2MB in the beginning and 108.3MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 2907.78ms. Allocated memory was 169.9MB in the beginning and 207.6MB in the end (delta: 37.7MB). Free memory was 108.3MB in the beginning and 110.5MB in the end (delta: -2.1MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Witness Printer took 148.86ms. Allocated memory is still 207.6MB. Free memory was 110.5MB in the beginning and 104.3MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:58:49,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28798659-6c07-4d47-89fe-d2cbefad036b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE