./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/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_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/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_b0f0392d-15da-4417-9c7a-a1c359c64c9f/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 7a128bbc72777543e51b605a0d431e8a70f5315af440203ec0bb39e26d519586 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:54:11,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:54:12,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:54:12,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:54:12,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:54:12,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:54:12,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:54:12,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:54:12,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:54:12,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:54:12,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:54:12,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:54:12,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:54:12,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:54:12,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:54:12,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:54:12,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:54:12,075 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:54:12,076 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:54:12,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:54:12,077 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:54:12,085 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:54:12,085 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:54:12,086 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:54:12,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:54:12,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:12,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:54:12,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:54:12,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:54:12,092 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:54:12,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:54:12,094 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:54:12,094 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_b0f0392d-15da-4417-9c7a-a1c359c64c9f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a128bbc72777543e51b605a0d431e8a70f5315af440203ec0bb39e26d519586 [2023-11-21 18:54:12,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:54:12,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:54:12,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:54:12,399 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:54:12,399 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:54:12,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_good.i [2023-11-21 18:54:15,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:54:16,181 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:54:16,182 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_good.i [2023-11-21 18:54:16,226 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/data/f6125fba7/02ede5c94cfe4ad989e3f35d32a47444/FLAGce3caba60 [2023-11-21 18:54:16,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/data/f6125fba7/02ede5c94cfe4ad989e3f35d32a47444 [2023-11-21 18:54:16,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:54:16,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:54:16,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:16,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:54:16,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:54:16,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:16" (1/1) ... [2023-11-21 18:54:16,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f775d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:16, skipping insertion in model container [2023-11-21 18:54:16,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:16" (1/1) ... [2023-11-21 18:54:16,364 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:54:16,902 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:54:17,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:17,608 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:54:17,632 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:54:17,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:17,944 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:17,944 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:17,944 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:17,945 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:17,945 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:17,952 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:54:17,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17 WrapperNode [2023-11-21 18:54:17,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:17,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:17,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:54:17,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:54:17,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,072 INFO L138 Inliner]: procedures = 503, calls = 71, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 191 [2023-11-21 18:54:18,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:18,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:54:18,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:54:18,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:54:18,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:54:18,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:54:18,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:54:18,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:54:18,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:17" (1/1) ... [2023-11-21 18:54:18,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:18,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:54:18,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:54:18,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:54:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-21 18:54:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-21 18:54:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:54:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:54:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:54:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:54:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:54:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:54:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:54:18,411 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:54:18,414 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:54:18,784 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:54:19,377 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:54:19,377 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 18:54:19,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:19 BoogieIcfgContainer [2023-11-21 18:54:19,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:54:19,383 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:54:19,384 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:54:19,396 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:54:19,397 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:19" (1/1) ... [2023-11-21 18:54:19,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:54:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 60 transitions. [2023-11-21 18:54:19,487 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2023-11-21 18:54:19,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:54:19,492 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:19,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:19,906 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 18:54:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 44 states and 56 transitions. [2023-11-21 18:54:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2023-11-21 18:54:19,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:19,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:19,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:20,321 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 18:54:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:20,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 43 states and 55 transitions. [2023-11-21 18:54:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2023-11-21 18:54:20,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:54:20,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:20,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:20,543 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 18:54:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:20,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 42 states and 53 transitions. [2023-11-21 18:54:20,578 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-21 18:54:20,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:54:20,579 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:20,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:20,744 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 18:54:20,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:20,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 41 states and 52 transitions. [2023-11-21 18:54:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2023-11-21 18:54:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 18:54:20,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:20,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:20,948 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 18:54:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 39 states and 47 transitions. [2023-11-21 18:54:20,977 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-11-21 18:54:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:54:20,978 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:20,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:21,087 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 18:54:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:21,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 38 states and 46 transitions. [2023-11-21 18:54:21,163 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-21 18:54:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:54:21,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:21,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:21,264 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 18:54:21,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 44 transitions. [2023-11-21 18:54:21,309 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2023-11-21 18:54:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:54:21,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:21,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:21,408 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 18:54:21,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:21,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 36 states and 43 transitions. [2023-11-21 18:54:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-11-21 18:54:21,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:54:21,507 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-21 18:54:21,518 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-21 18:54:21,566 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:54:21,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:54:21 ImpRootNode [2023-11-21 18:54:21,573 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:54:21,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:54:21,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:54:21,574 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:54:21,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:19" (3/4) ... [2023-11-21 18:54:21,576 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:54:21,580 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-21 18:54:21,580 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-21 18:54:21,602 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2023-11-21 18:54:21,603 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-21 18:54:21,604 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 18:54:21,605 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:54:21,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:54:21,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:54:21,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:54:21,739 INFO L158 Benchmark]: Toolchain (without parser) took 5484.58ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 112.4MB in the beginning and 82.3MB in the end (delta: 30.0MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2023-11-21 18:54:21,739 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:21,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1692.45ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 101.9MB in the end (delta: 10.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2023-11-21 18:54:21,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.92ms. Allocated memory is still 146.8MB. Free memory was 101.9MB in the beginning and 98.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:21,741 INFO L158 Benchmark]: Boogie Preprocessor took 53.92ms. Allocated memory is still 146.8MB. Free memory was 98.6MB in the beginning and 96.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:21,741 INFO L158 Benchmark]: RCFGBuilder took 1252.35ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 96.8MB in the beginning and 112.4MB in the end (delta: -15.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-21 18:54:21,741 INFO L158 Benchmark]: CodeCheck took 2189.81ms. Allocated memory is still 182.5MB. Free memory was 112.4MB in the beginning and 89.5MB in the end (delta: 22.8MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-11-21 18:54:21,742 INFO L158 Benchmark]: Witness Printer took 164.89ms. Allocated memory is still 182.5MB. Free memory was 89.5MB in the beginning and 82.3MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 18:54:21,744 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, 46 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 428 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 182 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 914 GetRequests, 890 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 28/28 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: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: 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 0.29ms. Allocated memory is still 121.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1692.45ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 101.9MB in the end (delta: 10.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.92ms. Allocated memory is still 146.8MB. Free memory was 101.9MB in the beginning and 98.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.92ms. Allocated memory is still 146.8MB. Free memory was 98.6MB in the beginning and 96.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1252.35ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 96.8MB in the beginning and 112.4MB in the end (delta: -15.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * CodeCheck took 2189.81ms. Allocated memory is still 182.5MB. Free memory was 112.4MB in the beginning and 89.5MB in the end (delta: 22.8MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Witness Printer took 164.89ms. Allocated memory is still 182.5MB. Free memory was 89.5MB in the beginning and 82.3MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:54:21,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0f0392d-15da-4417-9c7a-a1c359c64c9f/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