./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_22_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_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/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_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/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_4acdc6f4-89ae-4848-8480-93cdb611885f/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 f99aed1a2681d32cb6221672a76e642596876480d047e3b6425ea1e67927d04e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:37:11,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:37:11,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:37:11,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:37:11,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:37:11,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:37:11,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:37:11,961 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:37:11,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:37:11,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:37:11,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:37:11,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:37:11,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:37:11,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:37:11,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:37:11,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:37:11,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:37:11,970 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:37:11,971 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:37:11,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:37:11,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:37:11,973 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:37:11,974 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:37:11,975 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:37:11,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:37:11,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:37:11,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:37:11,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:37:11,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:37:11,979 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:37:11,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:37:11,980 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:37:11,981 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_4acdc6f4-89ae-4848-8480-93cdb611885f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f99aed1a2681d32cb6221672a76e642596876480d047e3b6425ea1e67927d04e [2023-11-21 18:37:12,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:37:12,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:37:12,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:37:12,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:37:12,339 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:37:12,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_22_good.i [2023-11-21 18:37:15,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:37:15,964 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:37:15,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_22_good.i [2023-11-21 18:37:15,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/data/e401294be/83de8d72890d4aee982184ffba9ae4b2/FLAG699374d40 [2023-11-21 18:37:16,011 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/data/e401294be/83de8d72890d4aee982184ffba9ae4b2 [2023-11-21 18:37:16,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:37:16,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:37:16,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:37:16,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:37:16,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:37:16,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:37:16" (1/1) ... [2023-11-21 18:37:16,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56401e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:16, skipping insertion in model container [2023-11-21 18:37:16,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:37:16" (1/1) ... [2023-11-21 18:37:16,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:37:16,573 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:37:17,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:37:17,228 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:37:17,250 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:37:17,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:37:17,576 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:17,577 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:17,577 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:17,577 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:17,578 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:17,586 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:37:17,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17 WrapperNode [2023-11-21 18:37:17,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:37:17,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:37:17,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:37:17,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:37:17,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,699 INFO L138 Inliner]: procedures = 505, calls = 80, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 100 [2023-11-21 18:37:17,700 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:37:17,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:37:17,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:37:17,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:37:17,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:37:17,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:37:17,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:37:17,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:37:17,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:17" (1/1) ... [2023-11-21 18:37:17,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:37:17,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:37:17,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:37:17,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:37:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-21 18:37:17,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-21 18:37:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:37:17,852 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:37:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:37:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:37:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:37:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:37:17,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:37:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:37:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:37:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:37:17,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:37:18,053 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:37:18,056 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:37:18,387 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:37:18,465 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:37:18,469 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:37:18,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:18 BoogieIcfgContainer [2023-11-21 18:37:18,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:37:18,472 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:37:18,472 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:37:18,484 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:37:18,484 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:18" (1/1) ... [2023-11-21 18:37:18,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:37:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:18,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 49 transitions. [2023-11-21 18:37:18,568 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2023-11-21 18:37:18,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:37:18,573 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:18,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:18,949 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 18:37:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:19,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2023-11-21 18:37:19,007 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2023-11-21 18:37:19,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:37:19,010 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:19,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:19,219 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 18:37:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 37 states and 47 transitions. [2023-11-21 18:37:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2023-11-21 18:37:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:37:19,332 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:19,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:37:19,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 44 transitions. [2023-11-21 18:37:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2023-11-21 18:37:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:37:19,537 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:19,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:37:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:19,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 35 states and 43 transitions. [2023-11-21 18:37:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2023-11-21 18:37:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:37:19,641 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:19,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:37:19,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:19,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 42 transitions. [2023-11-21 18:37:19,804 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-21 18:37:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:37:19,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:19,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:37:20,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:20,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 41 transitions. [2023-11-21 18:37:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-11-21 18:37:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:37:20,151 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:20,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 18:37:20,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:20,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 40 transitions. [2023-11-21 18:37:20,300 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-21 18:37:20,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:37:20,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:20,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 18:37:20,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 39 transitions. [2023-11-21 18:37:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-21 18:37:20,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:37:20,541 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-21 18:37:20,551 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-21 18:37:20,626 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:37:20,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:37:20 ImpRootNode [2023-11-21 18:37:20,631 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:37:20,632 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:37:20,632 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:37:20,632 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:37:20,633 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:18" (3/4) ... [2023-11-21 18:37:20,635 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:37:20,638 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-21 18:37:20,639 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-21 18:37:20,645 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-21 18:37:20,646 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-21 18:37:20,646 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 18:37:20,647 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:37:20,787 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:37:20,787 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:37:20,788 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:37:20,789 INFO L158 Benchmark]: Toolchain (without parser) took 4771.26ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 95.7MB in the beginning and 149.4MB in the end (delta: -53.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-21 18:37:20,789 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 144.7MB. Free memory was 114.2MB in the beginning and 114.1MB in the end (delta: 82.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:20,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1566.90ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 95.3MB in the beginning and 146.8MB in the end (delta: -51.5MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2023-11-21 18:37:20,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.83ms. Allocated memory is still 201.3MB. Free memory was 146.8MB in the beginning and 143.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:37:20,791 INFO L158 Benchmark]: Boogie Preprocessor took 67.72ms. Allocated memory is still 201.3MB. Free memory was 143.6MB in the beginning and 142.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:20,791 INFO L158 Benchmark]: RCFGBuilder took 702.18ms. Allocated memory is still 201.3MB. Free memory was 142.6MB in the beginning and 122.6MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 18:37:20,792 INFO L158 Benchmark]: CodeCheck took 2159.39ms. Allocated memory is still 201.3MB. Free memory was 122.6MB in the beginning and 155.6MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:20,792 INFO L158 Benchmark]: Witness Printer took 155.83ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 149.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 18:37:20,794 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, 39 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 242 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 264 IncrementalHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 220 mSDtfsCounter, 264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 769 GetRequests, 739 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 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: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 1589]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 144.7MB. Free memory was 114.2MB in the beginning and 114.1MB in the end (delta: 82.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1566.90ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 95.3MB in the beginning and 146.8MB in the end (delta: -51.5MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.83ms. Allocated memory is still 201.3MB. Free memory was 146.8MB in the beginning and 143.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.72ms. Allocated memory is still 201.3MB. Free memory was 143.6MB in the beginning and 142.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 702.18ms. Allocated memory is still 201.3MB. Free memory was 142.6MB in the beginning and 122.6MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 2159.39ms. Allocated memory is still 201.3MB. Free memory was 122.6MB in the beginning and 155.6MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 155.83ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 149.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:37:20,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4acdc6f4-89ae-4848-8480-93cdb611885f/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