./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_44_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_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/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_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_44_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/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_383c9d98-f6dc-4a8c-a87c-38215fb31603/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 898d3470f93f66248a2f3d8f47d4c38118bb75f0a37204805ed822b8fd762e35 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:48:22,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:48:22,457 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:48:22,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:48:22,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:48:22,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:48:22,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:48:22,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:48:22,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:48:22,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:48:22,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:48:22,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:48:22,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:48:22,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:48:22,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:48:22,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:48:22,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:48:22,516 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:48:22,517 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:48:22,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:48:22,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:48:22,519 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:48:22,519 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:48:22,520 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:48:22,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:48:22,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:22,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:48:22,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:48:22,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:48:22,523 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:48:22,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:48:22,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:48:22,524 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_383c9d98-f6dc-4a8c-a87c-38215fb31603/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 898d3470f93f66248a2f3d8f47d4c38118bb75f0a37204805ed822b8fd762e35 [2023-11-21 18:48:22,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:48:22,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:48:22,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:48:22,853 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:48:22,853 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:48:22,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_44_good.i [2023-11-21 18:48:25,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:48:26,346 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:48:26,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_44_good.i [2023-11-21 18:48:26,376 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/data/a32f754a7/29ea00ea6d2f46f6a24bc53f3efb0e28/FLAGede498948 [2023-11-21 18:48:26,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/data/a32f754a7/29ea00ea6d2f46f6a24bc53f3efb0e28 [2023-11-21 18:48:26,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:48:26,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:48:26,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:26,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:48:26,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:48:26,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:26" (1/1) ... [2023-11-21 18:48:26,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457176a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:26, skipping insertion in model container [2023-11-21 18:48:26,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:26" (1/1) ... [2023-11-21 18:48:26,478 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:48:26,916 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:27,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:27,584 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:48:27,610 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:27,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:27,868 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:27,868 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:27,869 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:27,869 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:27,869 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:27,869 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:27,878 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:48:27,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27 WrapperNode [2023-11-21 18:48:27,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:27,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:27,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:48:27,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:48:27,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:27,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:27,968 INFO L138 Inliner]: procedures = 504, calls = 65, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 113 [2023-11-21 18:48:27,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:27,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:48:27,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:48:27,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:48:27,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:27,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:27,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:27,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:27,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:27,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:28,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:28,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:28,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:48:28,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:48:28,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:48:28,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:48:28,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:27" (1/1) ... [2023-11-21 18:48:28,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:28,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:48:28,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:48:28,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:48:28,100 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-21 18:48:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-21 18:48:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:48:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:48:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:48:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-21 18:48:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-21 18:48:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:48:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:48:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:48:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:48:28,293 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:48:28,296 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:48:28,571 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:48:28,793 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:48:28,793 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:48:28,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:28 BoogieIcfgContainer [2023-11-21 18:48:28,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:48:28,796 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:48:28,796 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:48:28,808 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:48:28,808 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:28" (1/1) ... [2023-11-21 18:48:28,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:48:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2023-11-21 18:48:28,895 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-11-21 18:48:28,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:48:28,902 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:28,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:29,378 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 18:48:29,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:29,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 43 transitions. [2023-11-21 18:48:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-11-21 18:48:29,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:48:29,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:29,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:29,645 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 18:48:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 42 transitions. [2023-11-21 18:48:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-21 18:48:29,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:48:29,681 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:29,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:29,930 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 18:48:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 39 states and 48 transitions. [2023-11-21 18:48:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2023-11-21 18:48:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:48:30,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:30,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:30,507 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 18:48:31,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:31,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 51 transitions. [2023-11-21 18:48:31,082 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2023-11-21 18:48:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:48:31,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:31,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:48:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:31,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 47 transitions. [2023-11-21 18:48:31,952 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-11-21 18:48:31,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:48:31,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:31,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:32,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:48:33,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 46 transitions. [2023-11-21 18:48:33,119 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-21 18:48:33,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:48:33,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:33,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:33,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:48:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:33,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 45 transitions. [2023-11-21 18:48:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-11-21 18:48:33,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:48:33,699 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-21 18:48:33,708 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-21 18:48:33,850 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:48:33,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:48:33 ImpRootNode [2023-11-21 18:48:33,856 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:48:33,856 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:48:33,861 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:48:33,861 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:48:33,862 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:28" (3/4) ... [2023-11-21 18:48:33,864 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:48:33,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-21 18:48:33,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-21 18:48:33,868 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~int~TO~VOID [2023-11-21 18:48:33,877 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2023-11-21 18:48:33,878 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-21 18:48:33,878 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 18:48:33,879 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:48:34,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:48:34,044 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:48:34,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:48:34,045 INFO L158 Benchmark]: Toolchain (without parser) took 7647.40ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 89.8MB in the beginning and 79.3MB in the end (delta: 10.6MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-11-21 18:48:34,046 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:34,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1479.84ms. Allocated memory is still 132.1MB. Free memory was 89.8MB in the beginning and 85.5MB in the end (delta: 4.3MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2023-11-21 18:48:34,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.40ms. Allocated memory is still 132.1MB. Free memory was 85.5MB in the beginning and 82.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:34,048 INFO L158 Benchmark]: Boogie Preprocessor took 37.07ms. Allocated memory is still 132.1MB. Free memory was 82.0MB in the beginning and 80.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:34,048 INFO L158 Benchmark]: RCFGBuilder took 788.02ms. Allocated memory is still 132.1MB. Free memory was 80.5MB in the beginning and 88.3MB in the end (delta: -7.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-21 18:48:34,049 INFO L158 Benchmark]: CodeCheck took 5059.90ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 88.3MB in the beginning and 84.5MB in the end (delta: 3.8MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2023-11-21 18:48:34,050 INFO L158 Benchmark]: Witness Printer took 188.24ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 79.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:48:34,052 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 4 procedures, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 262 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 474 IncrementalHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 146 mSDtfsCounter, 474 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 853 GetRequests, 772 SyntacticMatches, 3 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 9/9 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: 1568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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: 1595]: 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 109.1MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1479.84ms. Allocated memory is still 132.1MB. Free memory was 89.8MB in the beginning and 85.5MB in the end (delta: 4.3MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.40ms. Allocated memory is still 132.1MB. Free memory was 85.5MB in the beginning and 82.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.07ms. Allocated memory is still 132.1MB. Free memory was 82.0MB in the beginning and 80.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 788.02ms. Allocated memory is still 132.1MB. Free memory was 80.5MB in the beginning and 88.3MB in the end (delta: -7.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * CodeCheck took 5059.90ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 88.3MB in the beginning and 84.5MB in the end (delta: 3.8MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Witness Printer took 188.24ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 79.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:48:34,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_383c9d98-f6dc-4a8c-a87c-38215fb31603/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