./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV --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 3137ff16f9a26d38b59065d9b22bcac0d7540fcd8f2434453bdd732fb065fc91 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:42:10,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:42:10,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:42:10,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:42:10,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:42:10,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:42:10,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:42:10,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:42:10,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:42:10,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:42:10,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:42:10,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:42:10,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:42:10,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:42:10,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:42:10,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:42:10,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:42:10,244 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:42:10,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:42:10,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:42:10,245 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:42:10,246 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:42:10,246 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:42:10,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:42:10,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:42:10,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:42:10,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:42:10,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:42:10,250 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:42:10,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:42:10,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:42:10,252 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_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3137ff16f9a26d38b59065d9b22bcac0d7540fcd8f2434453bdd732fb065fc91 [2023-11-11 23:42:10,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:42:10,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:42:10,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:42:10,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:42:10,614 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:42:10,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_good.i [2023-11-11 23:42:13,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:42:14,182 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:42:14,183 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_good.i [2023-11-11 23:42:14,212 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/data/a91df0a16/1199fb0c4bf448c3bb8c667b45e87e8f/FLAGe7172bdaa [2023-11-11 23:42:14,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/data/a91df0a16/1199fb0c4bf448c3bb8c667b45e87e8f [2023-11-11 23:42:14,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:42:14,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:42:14,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:42:14,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:42:14,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:42:14,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:42:14" (1/1) ... [2023-11-11 23:42:14,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d5605e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:14, skipping insertion in model container [2023-11-11 23:42:14,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:42:14" (1/1) ... [2023-11-11 23:42:14,351 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:42:14,812 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:42:15,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:42:15,516 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:42:15,542 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:42:15,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:42:15,805 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:42:15,806 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:42:15,806 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:42:15,806 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:42:15,807 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:42:15,807 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:42:15,815 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:42:15,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15 WrapperNode [2023-11-11 23:42:15,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:42:15,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:42:15,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:42:15,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:42:15,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,912 INFO L138 Inliner]: procedures = 506, calls = 86, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 108 [2023-11-11 23:42:15,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:42:15,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:42:15,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:42:15,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:42:15,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:42:15,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:42:15,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:42:15,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:42:15,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:42:15" (1/1) ... [2023-11-11 23:42:15,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:42:15,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:42:15,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:42:16,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:42:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-11 23:42:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-11 23:42:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-11 23:42:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:42:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:42:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:42:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-11 23:42:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:42:16,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:42:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:42:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:42:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:42:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:42:16,238 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:42:16,241 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:42:16,575 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:42:16,652 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:42:16,653 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:42:16,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:42:16 BoogieIcfgContainer [2023-11-11 23:42:16,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:42:16,659 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:42:16,659 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:42:16,672 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:42:16,672 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:42:16" (1/1) ... [2023-11-11 23:42:16,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:42:16,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:16,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 59 transitions. [2023-11-11 23:42:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2023-11-11 23:42:16,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:42:16,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:16,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:42:17,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:17,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 65 transitions. [2023-11-11 23:42:17,366 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-11 23:42:17,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:42:17,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:17,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:17,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:42:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 48 states and 64 transitions. [2023-11-11 23:42:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2023-11-11 23:42:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:42:17,505 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:17,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:42:17,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:17,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 43 states and 57 transitions. [2023-11-11 23:42:17,810 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2023-11-11 23:42:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-11 23:42:17,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:17,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:42:18,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:18,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 42 states and 54 transitions. [2023-11-11 23:42:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2023-11-11 23:42:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-11 23:42:18,008 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:18,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:18,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:42:18,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 60 transitions. [2023-11-11 23:42:18,315 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2023-11-11 23:42:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:42:18,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:18,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:42:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:18,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 46 states and 59 transitions. [2023-11-11 23:42:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2023-11-11 23:42:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:42:18,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:18,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:42:18,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:18,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 58 transitions. [2023-11-11 23:42:18,871 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2023-11-11 23:42:18,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-11 23:42:18,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:18,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:42:19,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 51 transitions. [2023-11-11 23:42:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2023-11-11 23:42:19,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-11 23:42:19,161 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:19,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:19,273 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:42:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 39 states and 50 transitions. [2023-11-11 23:42:19,325 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2023-11-11 23:42:19,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-11 23:42:19,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:42:19,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:42:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:42:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:42:19,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:42:19,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 38 states and 49 transitions. [2023-11-11 23:42:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2023-11-11 23:42:19,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:42:19,415 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-11 23:42:19,424 INFO L753 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-11 23:42:19,514 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:42:19,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:42:19 ImpRootNode [2023-11-11 23:42:19,520 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:42:19,521 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:42:19,521 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:42:19,521 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:42:19,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:42:16" (3/4) ... [2023-11-11 23:42:19,526 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:42:19,529 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-11 23:42:19,530 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-11 23:42:19,539 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-11 23:42:19,539 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-11 23:42:19,540 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-11 23:42:19,540 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:42:19,541 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:42:19,689 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:42:19,689 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:42:19,689 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:42:19,690 INFO L158 Benchmark]: Toolchain (without parser) took 5459.17ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 97.1MB in the beginning and 80.6MB in the end (delta: 16.5MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2023-11-11 23:42:19,691 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:42:19,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1584.59ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 96.6MB in the beginning and 135.2MB in the end (delta: -38.5MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2023-11-11 23:42:19,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.18ms. Allocated memory is still 180.4MB. Free memory was 135.2MB in the beginning and 132.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:42:19,693 INFO L158 Benchmark]: Boogie Preprocessor took 35.84ms. Allocated memory is still 180.4MB. Free memory was 132.0MB in the beginning and 131.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:42:19,696 INFO L158 Benchmark]: RCFGBuilder took 706.81ms. Allocated memory is still 180.4MB. Free memory was 131.0MB in the beginning and 112.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-11 23:42:19,696 INFO L158 Benchmark]: CodeCheck took 2861.40ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 86.8MB in the end (delta: 25.3MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-11 23:42:19,697 INFO L158 Benchmark]: Witness Printer took 168.92ms. Allocated memory is still 180.4MB. Free memory was 86.8MB in the beginning and 80.6MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-11 23:42:19,699 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 45 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 629 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 471 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 177 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 177 mSolverCounterUnsat, 381 mSDtfsCounter, 464 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1379 GetRequests, 1333 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 28/28 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 1650]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1584.59ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 96.6MB in the beginning and 135.2MB in the end (delta: -38.5MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.18ms. Allocated memory is still 180.4MB. Free memory was 135.2MB in the beginning and 132.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.84ms. Allocated memory is still 180.4MB. Free memory was 132.0MB in the beginning and 131.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 706.81ms. Allocated memory is still 180.4MB. Free memory was 131.0MB in the beginning and 112.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2861.40ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 86.8MB in the end (delta: 25.3MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 168.92ms. Allocated memory is still 180.4MB. Free memory was 86.8MB in the beginning and 80.6MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:42:19,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7719951-e5fa-4006-b715-f7f74b509b6f/bin/ukojak-verify-0OAaufAVZV/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 Writing output log to file Ultimate.log Result: TRUE