./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_18_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_18_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC --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 c6e9ba745b0adbba739a4781983ebf16a877e36fcd11f807039d7ddfaee04897 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:09:59,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:09:59,372 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:09:59,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:09:59,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:09:59,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:09:59,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:09:59,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:09:59,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:09:59,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:09:59,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:09:59,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:09:59,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:09:59,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:09:59,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:09:59,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:09:59,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:09:59,433 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:09:59,434 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:09:59,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:09:59,435 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:09:59,436 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:09:59,436 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:09:59,438 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:09:59,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:09:59,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:09:59,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:09:59,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:09:59,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:09:59,441 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:09:59,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:09:59,442 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:09:59,443 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_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6e9ba745b0adbba739a4781983ebf16a877e36fcd11f807039d7ddfaee04897 [2023-11-23 20:09:59,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:09:59,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:09:59,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:09:59,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:09:59,827 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:09:59,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_18_good.i [2023-11-23 20:10:02,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:10:03,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:10:03,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_18_good.i [2023-11-23 20:10:03,340 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/data/836e7bb4e/74575dea598a44f5af264b15853388e8/FLAG71d547dae [2023-11-23 20:10:03,358 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/data/836e7bb4e/74575dea598a44f5af264b15853388e8 [2023-11-23 20:10:03,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:10:03,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:10:03,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:10:03,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:10:03,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:10:03,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:10:03" (1/1) ... [2023-11-23 20:10:03,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1480f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:03, skipping insertion in model container [2023-11-23 20:10:03,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:10:03" (1/1) ... [2023-11-23 20:10:03,489 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:10:03,963 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:10:04,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:10:04,675 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:10:04,701 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:10:04,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:10:04,892 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:10:04,892 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:10:04,892 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:10:04,892 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:10:04,893 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:10:04,901 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:10:04,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04 WrapperNode [2023-11-23 20:10:04,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:10:04,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:10:04,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:10:04,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:10:04,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:04,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:04,991 INFO L138 Inliner]: procedures = 501, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-23 20:10:04,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:10:04,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:10:04,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:10:04,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:10:05,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:10:05,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:10:05,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:10:05,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:10:05,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:10:04" (1/1) ... [2023-11-23 20:10:05,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:10:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:10:05,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:10:05,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:10:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:10:05,179 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:10:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:10:05,180 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:10:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:10:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:10:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:10:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:10:05,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:10:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:10:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:10:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:10:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:10:05,368 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:10:05,371 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:10:05,582 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:10:05,646 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:10:05,646 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:10:05,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:10:05 BoogieIcfgContainer [2023-11-23 20:10:05,648 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:10:05,649 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:10:05,649 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:10:05,661 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:10:05,662 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:10:05" (1/1) ... [2023-11-23 20:10:05,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:10:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:10:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2023-11-23 20:10:05,726 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-11-23 20:10:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:10:05,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:10:05,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:10:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:10:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:10:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:10:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-23 20:10:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-23 20:10:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:10:06,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:10:06,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:10:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:10:06,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:10:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:10:06,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2023-11-23 20:10:06,783 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-23 20:10:06,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:10:06,785 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:10:06,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:10:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:10:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:10:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:10:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2023-11-23 20:10:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-23 20:10:06,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:10:06,971 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:10:06,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:10:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:10:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:10:07,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:10:07,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2023-11-23 20:10:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-23 20:10:07,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:10:07,291 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-23 20:10:07,310 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 20:10:07,354 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:10:07,359 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:10:07,360 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:10:07,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:10:07 ImpRootNode [2023-11-23 20:10:07,361 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:10:07,363 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:10:07,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:10:07,364 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:10:07,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:10:05" (3/4) ... [2023-11-23 20:10:07,368 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:10:07,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:10:07,373 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:10:07,383 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-23 20:10:07,384 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 20:10:07,384 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:10:07,385 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:10:07,528 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:10:07,529 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:10:07,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:10:07,531 INFO L158 Benchmark]: Toolchain (without parser) took 4167.88ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 146.0MB in the beginning and 162.3MB in the end (delta: -16.3MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-11-23 20:10:07,532 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:10:07,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1538.51ms. Allocated memory is still 178.3MB. Free memory was 146.0MB in the beginning and 86.4MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-23 20:10:07,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.20ms. Allocated memory is still 178.3MB. Free memory was 86.4MB in the beginning and 83.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:10:07,534 INFO L158 Benchmark]: Boogie Preprocessor took 43.75ms. Allocated memory is still 178.3MB. Free memory was 83.1MB in the beginning and 82.2MB in the end (delta: 873.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:10:07,534 INFO L158 Benchmark]: RCFGBuilder took 607.30ms. Allocated memory is still 178.3MB. Free memory was 82.2MB in the beginning and 130.1MB in the end (delta: -47.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:10:07,535 INFO L158 Benchmark]: CodeCheck took 1711.59ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 130.1MB in the beginning and 167.4MB in the end (delta: -37.3MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2023-11-23 20:10:07,536 INFO L158 Benchmark]: Witness Printer took 166.58ms. Allocated memory is still 213.9MB. Free memory was 167.4MB in the beginning and 162.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:10:07,539 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, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 26 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 248 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: 1559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1578]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1578]: 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: 1593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1557]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1591]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1538.51ms. Allocated memory is still 178.3MB. Free memory was 146.0MB in the beginning and 86.4MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.20ms. Allocated memory is still 178.3MB. Free memory was 86.4MB in the beginning and 83.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.75ms. Allocated memory is still 178.3MB. Free memory was 83.1MB in the beginning and 82.2MB in the end (delta: 873.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 607.30ms. Allocated memory is still 178.3MB. Free memory was 82.2MB in the beginning and 130.1MB in the end (delta: -47.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 1711.59ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 130.1MB in the beginning and 167.4MB in the end (delta: -37.3MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 166.58ms. Allocated memory is still 213.9MB. Free memory was 167.4MB in the beginning and 162.3MB 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! [2023-11-23 20:10:07,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe41b100-1701-4002-a2e7-50467d00dc51/bin/ukojak-verify-1t5iHCbJaC/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