./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_good.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_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/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_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/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_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/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 cc264d4b07d7eb3b476452e717e168006b9fa17ef2655b8e318d16d5a9efebca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:09:22,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:09:22,881 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:09:22,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:09:22,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:09:22,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:09:22,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:09:22,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:09:22,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:09:22,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:09:22,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:09:22,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:09:22,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:09:22,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:09:22,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:09:22,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:09:22,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:09:22,947 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:09:22,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:09:22,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:09:22,948 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:09:22,953 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:09:22,953 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:09:22,953 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:09:22,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:09:22,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:09:22,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:09:22,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:09:22,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:09:22,956 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:09:22,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:09:22,957 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:09:22,957 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_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc264d4b07d7eb3b476452e717e168006b9fa17ef2655b8e318d16d5a9efebca [2023-11-23 20:09:23,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:09:23,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:09:23,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:09:23,276 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:09:23,277 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:09:23,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_good.i [2023-11-23 20:09:26,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:09:26,853 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:09:26,856 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_good.i [2023-11-23 20:09:26,883 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/data/a0d68d8a0/78f1892dfe1f45f8b3767b391b0bcd73/FLAGddee0db13 [2023-11-23 20:09:26,898 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/data/a0d68d8a0/78f1892dfe1f45f8b3767b391b0bcd73 [2023-11-23 20:09:26,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:09:26,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:09:26,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:09:26,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:09:26,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:09:26,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:09:26" (1/1) ... [2023-11-23 20:09:26,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170b7ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:26, skipping insertion in model container [2023-11-23 20:09:26,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:09:26" (1/1) ... [2023-11-23 20:09:26,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:09:27,443 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:09:28,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:09:28,242 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:09:28,280 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:09:28,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:09:28,593 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:09:28,593 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:09:28,594 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:09:28,594 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:09:28,594 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:09:28,602 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:09:28,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28 WrapperNode [2023-11-23 20:09:28,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:09:28,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:09:28,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:09:28,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:09:28,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,677 INFO L138 Inliner]: procedures = 501, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2023-11-23 20:09:28,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:09:28,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:09:28,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:09:28,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:09:28,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:09:28,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:09:28,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:09:28,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:09:28,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:09:28" (1/1) ... [2023-11-23 20:09:28,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:09:28,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:09:28,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:09:28,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:09:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 20:09:28,839 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 20:09:28,839 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-11-23 20:09:28,839 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-11-23 20:09:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:09:28,840 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:09:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:09:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:09:28,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:09:28,840 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:09:28,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:09:29,008 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:09:29,010 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:09:29,191 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:09:29,246 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:09:29,247 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:09:29,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:09:29 BoogieIcfgContainer [2023-11-23 20:09:29,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:09:29,253 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:09:29,253 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:09:29,262 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:09:29,262 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:09:29" (1/1) ... [2023-11-23 20:09:29,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:09:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:29,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 52 states and 64 transitions. [2023-11-23 20:09:29,337 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2023-11-23 20:09:29,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:09:29,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:29,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 51 states and 63 transitions. [2023-11-23 20:09:29,873 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2023-11-23 20:09:29,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:09:29,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:29,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:29,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:30,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:30,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 50 states and 62 transitions. [2023-11-23 20:09:30,011 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2023-11-23 20:09:30,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:09:30,012 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:30,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:30,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:30,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 45 states and 55 transitions. [2023-11-23 20:09:30,164 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2023-11-23 20:09:30,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:09:30,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:30,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:09:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 40 states and 48 transitions. [2023-11-23 20:09:30,273 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-11-23 20:09:30,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:09:30,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:30,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:09:30,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 47 transitions. [2023-11-23 20:09:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-11-23 20:09:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:09:30,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:30,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:09:30,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 38 states and 46 transitions. [2023-11-23 20:09:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-23 20:09:30,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:09:30,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:30,883 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:09:30,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:30,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 37 states and 45 transitions. [2023-11-23 20:09:30,987 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-11-23 20:09:30,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:09:30,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:09:30,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:09:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:09:31,085 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:09:31,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:09:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 36 states and 44 transitions. [2023-11-23 20:09:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2023-11-23 20:09:31,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:09:31,131 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-11-23 20:09:31,141 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-11-23 20:09:31,201 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:09:31,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:09:31 ImpRootNode [2023-11-23 20:09:31,207 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:09:31,208 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:09:31,209 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:09:31,209 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:09:31,210 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:09:29" (3/4) ... [2023-11-23 20:09:31,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:09:31,216 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 20:09:31,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2023-11-23 20:09:31,217 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 20:09:31,223 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-23 20:09:31,224 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-23 20:09:31,224 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:09:31,225 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:09:31,368 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:09:31,369 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:09:31,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:09:31,371 INFO L158 Benchmark]: Toolchain (without parser) took 4467.71ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 114.9MB in the beginning and 104.1MB in the end (delta: 10.9MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2023-11-23 20:09:31,371 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:09:31,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1699.26ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 114.5MB in the beginning and 165.7MB in the end (delta: -51.1MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2023-11-23 20:09:31,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.85ms. Allocated memory is still 207.6MB. Free memory was 165.7MB in the beginning and 162.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:09:31,372 INFO L158 Benchmark]: Boogie Preprocessor took 51.47ms. Allocated memory is still 207.6MB. Free memory was 162.5MB in the beginning and 161.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:09:31,373 INFO L158 Benchmark]: RCFGBuilder took 517.03ms. Allocated memory is still 207.6MB. Free memory was 161.3MB in the beginning and 143.7MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:09:31,374 INFO L158 Benchmark]: CodeCheck took 1954.74ms. Allocated memory is still 207.6MB. Free memory was 143.7MB in the beginning and 110.4MB in the end (delta: 33.3MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-11-23 20:09:31,374 INFO L158 Benchmark]: Witness Printer took 160.92ms. Allocated memory is still 207.6MB. Free memory was 110.4MB in the beginning and 104.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:09:31,376 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, 52 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 546 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 406 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 188 IncrementalHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 328 mSDtfsCounter, 188 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1156 GetRequests, 1139 SyntacticMatches, 9 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 64/64 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1607]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1607]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1622]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1699.26ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 114.5MB in the beginning and 165.7MB in the end (delta: -51.1MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.85ms. Allocated memory is still 207.6MB. Free memory was 165.7MB in the beginning and 162.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.47ms. Allocated memory is still 207.6MB. Free memory was 162.5MB in the beginning and 161.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.03ms. Allocated memory is still 207.6MB. Free memory was 161.3MB in the beginning and 143.7MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1954.74ms. Allocated memory is still 207.6MB. Free memory was 143.7MB in the beginning and 110.4MB in the end (delta: 33.3MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * Witness Printer took 160.92ms. Allocated memory is still 207.6MB. Free memory was 110.4MB in the beginning and 104.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:09:31,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef47d59e-e78e-441f-a79a-d2d5c7d46de7/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 Result: TRUE