./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_14_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 99d41cb603c18a95cc247432c912a3dee8e22c96b2c1b135e9bca94af9f2f270 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:01:51,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:01:51,260 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:01:51,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:01:51,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:01:51,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:01:51,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:01:51,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:01:51,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:01:51,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:01:51,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:01:51,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:01:51,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:01:51,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:01:51,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:01:51,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:01:51,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:01:51,310 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:01:51,310 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:01:51,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:01:51,312 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:01:51,313 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:01:51,313 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:01:51,314 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:01:51,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:01:51,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:01:51,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:01:51,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:01:51,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:01:51,318 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:01:51,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:01:51,319 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:01:51,320 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_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99d41cb603c18a95cc247432c912a3dee8e22c96b2c1b135e9bca94af9f2f270 [2023-11-23 20:01:51,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:01:51,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:01:51,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:01:51,631 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:01:51,632 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:01:51,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_14_bad.i [2023-11-23 20:01:55,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:01:55,946 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:01:55,947 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_14_bad.i [2023-11-23 20:01:56,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/data/49f965e9b/677405953abc4c0081acb995ee261505/FLAG17d88a64f [2023-11-23 20:01:56,024 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/data/49f965e9b/677405953abc4c0081acb995ee261505 [2023-11-23 20:01:56,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:01:56,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:01:56,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:01:56,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:01:56,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:01:56,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:01:56" (1/1) ... [2023-11-23 20:01:56,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da0ed43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:56, skipping insertion in model container [2023-11-23 20:01:56,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:01:56" (1/1) ... [2023-11-23 20:01:56,160 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:01:56,640 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:01:57,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:01:57,383 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:01:57,409 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:01:57,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:01:57,661 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:01:57,661 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:01:57,661 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:01:57,661 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:01:57,662 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:01:57,675 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:01:57,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57 WrapperNode [2023-11-23 20:01:57,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:01:57,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:01:57,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:01:57,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:01:57,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,797 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2023-11-23 20:01:57,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:01:57,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:01:57,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:01:57,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:01:57,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,848 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:01:57,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:01:57,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:01:57,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:01:57,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:01:57" (1/1) ... [2023-11-23 20:01:57,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:01:57,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:01:57,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:01:57,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:01:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:01:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:01:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:01:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:01:57,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:01:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:01:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:01:58,126 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:01:58,128 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:01:58,369 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:01:58,777 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:01:58,777 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:01:58,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:01:58 BoogieIcfgContainer [2023-11-23 20:01:58,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:01:58,781 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:01:58,781 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:01:58,793 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:01:58,795 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:01:58" (1/1) ... [2023-11-23 20:01:58,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:01:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:01:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-23 20:01:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-23 20:01:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:01:58,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:01:58,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:01:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:01:59,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:01:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:01:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:01:59,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:01:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:01:59,751 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:01:59,786 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated [2023-11-23 20:01:59,787 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated [2023-11-23 20:01:59,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:01:59 ImpRootNode [2023-11-23 20:01:59,794 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:01:59,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:01:59,798 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:01:59,798 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:01:59,799 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:01:58" (3/4) ... [2023-11-23 20:01:59,804 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:01:59,805 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:01:59,807 INFO L158 Benchmark]: Toolchain (without parser) took 3760.54ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 125.9MB in the beginning and 151.9MB in the end (delta: -26.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:01:59,808 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:01:59,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1630.62ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 125.7MB in the beginning and 163.1MB in the end (delta: -37.3MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. [2023-11-23 20:01:59,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.63ms. Allocated memory is still 201.3MB. Free memory was 163.1MB in the beginning and 159.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:01:59,811 INFO L158 Benchmark]: Boogie Preprocessor took 58.19ms. Allocated memory is still 201.3MB. Free memory was 159.9MB in the beginning and 157.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:01:59,812 INFO L158 Benchmark]: RCFGBuilder took 922.25ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 116.9MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-23 20:01:59,813 INFO L158 Benchmark]: CodeCheck took 1014.23ms. Allocated memory is still 201.3MB. Free memory was 116.9MB in the beginning and 153.0MB in the end (delta: -36.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:01:59,815 INFO L158 Benchmark]: Witness Printer took 7.95ms. Allocated memory is still 201.3MB. Free memory was 153.0MB in the beginning and 151.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:01:59,826 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1567] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1567] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={14:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_14_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE globalFive==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE globalFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1559] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1630.62ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 125.7MB in the beginning and 163.1MB in the end (delta: -37.3MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.63ms. Allocated memory is still 201.3MB. Free memory was 163.1MB in the beginning and 159.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.19ms. Allocated memory is still 201.3MB. Free memory was 159.9MB in the beginning and 157.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 922.25ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 116.9MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * CodeCheck took 1014.23ms. Allocated memory is still 201.3MB. Free memory was 116.9MB in the beginning and 153.0MB in the end (delta: -36.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.95ms. Allocated memory is still 201.3MB. Free memory was 153.0MB in the beginning and 151.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite109 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:01:59,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 99d41cb603c18a95cc247432c912a3dee8e22c96b2c1b135e9bca94af9f2f270 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:02:03,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:02:03,225 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:02:03,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:02:03,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:02:03,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:02:03,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:02:03,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:02:03,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:02:03,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:02:03,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:02:03,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:02:03,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:02:03,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:02:03,297 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:02:03,297 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:02:03,298 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:02:03,298 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:02:03,299 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:02:03,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:02:03,301 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:02:03,302 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:02:03,302 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:02:03,303 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:02:03,303 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:02:03,304 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:02:03,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:02:03,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:03,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:02:03,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:02:03,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:02:03,308 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:02:03,308 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:02:03,309 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:02:03,309 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:02:03,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:02:03,309 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99d41cb603c18a95cc247432c912a3dee8e22c96b2c1b135e9bca94af9f2f270 [2023-11-23 20:02:03,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:02:03,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:02:03,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:02:03,890 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:02:03,891 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:02:03,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_14_bad.i [2023-11-23 20:02:07,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:02:08,109 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:02:08,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_14_bad.i [2023-11-23 20:02:08,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/data/8dad0ddfb/ba2629e04cd0448aaeaa3bc9c624cc6f/FLAGf4ce93768 [2023-11-23 20:02:08,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/data/8dad0ddfb/ba2629e04cd0448aaeaa3bc9c624cc6f [2023-11-23 20:02:08,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:02:08,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:02:08,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:08,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:02:08,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:02:08,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:08" (1/1) ... [2023-11-23 20:02:08,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35be4fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:08, skipping insertion in model container [2023-11-23 20:02:08,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:08" (1/1) ... [2023-11-23 20:02:08,254 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:02:08,839 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:02:09,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:09,599 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:02:09,626 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:02:09,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:09,872 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:09,872 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:09,873 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:09,873 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:09,873 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:09,882 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:02:09,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09 WrapperNode [2023-11-23 20:02:09,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:09,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:09,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:02:09,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:02:09,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:09,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:09,972 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-23 20:02:09,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:09,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:02:09,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:02:09,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:02:09,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:09,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:09,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:09,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:10,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:10,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:10,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:10,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:10,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:02:10,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:02:10,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:02:10,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:02:10,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:09" (1/1) ... [2023-11-23 20:02:10,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:10,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:02:10,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:02:10,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:02:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:02:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:02:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:02:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:02:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:02:10,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:02:10,165 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:02:10,410 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:02:10,413 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:02:10,629 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:02:10,751 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:02:10,752 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:02:10,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:10 BoogieIcfgContainer [2023-11-23 20:02:10,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:02:10,755 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:02:10,756 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:02:10,768 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:02:10,769 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:10" (1/1) ... [2023-11-23 20:02:10,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:02:10,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:10,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-23 20:02:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-23 20:02:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:02:10,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:10,878 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:02:10,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:02:10,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:02:10,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:02:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:11,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:02:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:11,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:02:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:11,315 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:02:11,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:02:11,328 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:02:11,380 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-23 20:02:11,382 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-23 20:02:11,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:02:11 ImpRootNode [2023-11-23 20:02:11,388 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:02:11,390 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:02:11,392 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:02:11,393 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:02:11,393 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:10" (3/4) ... [2023-11-23 20:02:11,395 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:02:11,403 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-23 20:02:11,410 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-23 20:02:11,476 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:02:11,476 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:02:11,478 INFO L158 Benchmark]: Toolchain (without parser) took 3308.03ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 54.6MB in the beginning and 81.2MB in the end (delta: -26.6MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-11-23 20:02:11,478 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 81.8MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 141.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:02:11,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1712.61ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 54.4MB in the beginning and 58.6MB in the end (delta: -4.3MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-23 20:02:11,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.97ms. Allocated memory is still 111.1MB. Free memory was 58.6MB in the beginning and 55.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:02:11,481 INFO L158 Benchmark]: Boogie Preprocessor took 59.34ms. Allocated memory is still 111.1MB. Free memory was 55.4MB in the beginning and 84.2MB in the end (delta: -28.8MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-11-23 20:02:11,482 INFO L158 Benchmark]: RCFGBuilder took 720.66ms. Allocated memory is still 111.1MB. Free memory was 84.2MB in the beginning and 65.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:02:11,483 INFO L158 Benchmark]: CodeCheck took 633.70ms. Allocated memory is still 111.1MB. Free memory was 65.4MB in the beginning and 49.5MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:02:11,484 INFO L158 Benchmark]: Witness Printer took 86.80ms. Allocated memory is still 111.1MB. Free memory was 49.5MB in the beginning and 81.2MB in the end (delta: -31.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:02:11,488 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1567] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1567] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_14_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE globalFive==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE globalFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1559] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 81.8MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 141.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1712.61ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 54.4MB in the beginning and 58.6MB in the end (delta: -4.3MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.97ms. Allocated memory is still 111.1MB. Free memory was 58.6MB in the beginning and 55.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.34ms. Allocated memory is still 111.1MB. Free memory was 55.4MB in the beginning and 84.2MB in the end (delta: -28.8MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * RCFGBuilder took 720.66ms. Allocated memory is still 111.1MB. Free memory was 84.2MB in the beginning and 65.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 633.70ms. Allocated memory is still 111.1MB. Free memory was 65.4MB in the beginning and 49.5MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 86.80ms. Allocated memory is still 111.1MB. Free memory was 49.5MB in the beginning and 81.2MB in the end (delta: -31.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:02:11,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_177864ef-7214-4037-8226-812fe5eaaa5b/bin/ukojak-verify-1t5iHCbJaC/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)