./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --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 8e002edff03e85a930a4bd074978aadf43bc2fc41e1f585376197cfc6401e345 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 17:29:35,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:29:35,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:29:35,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:29:35,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:29:35,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:29:35,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:29:35,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:29:35,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:29:35,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:29:35,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:29:35,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:29:35,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:29:35,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:29:35,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:29:35,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:29:35,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:29:35,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:29:35,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:29:35,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:29:35,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:29:35,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:29:35,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:29:35,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:29:35,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:29:35,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:29:35,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:29:35,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:29:35,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:29:35,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:29:35,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:29:35,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:29:35,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:29:35,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:29:35,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:29:35,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:29:35,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:29:35,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:29:35,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:29:35,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:29:35,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:29:35,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:29:35,489 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:29:35,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:29:35,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:29:35,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:29:35,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:29:35,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:29:35,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:29:35,503 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:29:35,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:29:35,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:29:35,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:29:35,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:29:35,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:29:35,505 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:29:35,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:29:35,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:29:35,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:29:35,505 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:29:35,505 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:29:35,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:29:35,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:29:35,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:29:35,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:29:35,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:29:35,507 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:29:35,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:29:35,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:29:35,507 INFO L138 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_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e002edff03e85a930a4bd074978aadf43bc2fc41e1f585376197cfc6401e345 [2022-11-20 17:29:35,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:29:35,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:29:35,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:29:35,875 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:29:35,876 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:29:35,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_good.i [2022-11-20 17:29:38,874 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:29:39,219 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:29:39,219 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_good.i [2022-11-20 17:29:39,237 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/data/76fe8bb89/738f29e4fc6848569ac87cb2d37bc5cf/FLAG9dd85647d [2022-11-20 17:29:39,254 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/data/76fe8bb89/738f29e4fc6848569ac87cb2d37bc5cf [2022-11-20 17:29:39,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:29:39,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:29:39,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:29:39,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:29:39,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:29:39,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:29:39" (1/1) ... [2022-11-20 17:29:39,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b63a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:39, skipping insertion in model container [2022-11-20 17:29:39,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:29:39" (1/1) ... [2022-11-20 17:29:39,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:29:39,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:29:39,731 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:29:40,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:29:40,323 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:29:40,353 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:29:40,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:29:40,590 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:29:40,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40 WrapperNode [2022-11-20 17:29:40,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:29:40,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:29:40,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:29:40,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:29:40,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,699 INFO L138 Inliner]: procedures = 506, calls = 84, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 107 [2022-11-20 17:29:40,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:29:40,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:29:40,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:29:40,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:29:40,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:29:40,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:29:40,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:29:40,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:29:40,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:40" (1/1) ... [2022-11-20 17:29:40,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:29:40,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:29:40,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:29:40,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:29:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 17:29:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 17:29:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 17:29:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 17:29:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 17:29:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:29:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 17:29:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:29:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:29:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:29:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:29:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 17:29:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:29:41,009 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:29:41,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:29:41,275 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:29:41,358 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:29:41,358 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 17:29:41,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:29:41 BoogieIcfgContainer [2022-11-20 17:29:41,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:29:41,373 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:29:41,373 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:29:41,384 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:29:41,385 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:29:41" (1/1) ... [2022-11-20 17:29:41,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:29:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:29:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 45 states and 62 transitions. [2022-11-20 17:29:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2022-11-20 17:29:41,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 17:29:41,482 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:29:41,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:29:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:29:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:29:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:29:42,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 44 states and 61 transitions. [2022-11-20 17:29:42,001 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 61 transitions. [2022-11-20 17:29:42,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 17:29:42,002 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:29:42,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:29:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:29:42,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:29:42,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:29:42,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 43 states and 60 transitions. [2022-11-20 17:29:42,242 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2022-11-20 17:29:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 17:29:42,243 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:29:42,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:29:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:29:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:29:42,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:29:42,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 42 states and 59 transitions. [2022-11-20 17:29:42,379 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 59 transitions. [2022-11-20 17:29:42,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 17:29:42,380 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:29:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:29:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:29:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:29:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:29:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 42 states and 58 transitions. [2022-11-20 17:29:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2022-11-20 17:29:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 17:29:42,569 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:29:42,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:29:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:29:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:29:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:29:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 41 states and 57 transitions. [2022-11-20 17:29:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2022-11-20 17:29:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 17:29:42,726 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:29:42,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:29:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:29:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:29:42,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:29:42,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 40 states and 56 transitions. [2022-11-20 17:29:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2022-11-20 17:29:42,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 17:29:42,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:29:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:29:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:29:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:29:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:29:43,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 39 states and 55 transitions. [2022-11-20 17:29:43,033 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2022-11-20 17:29:43,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:29:43,035 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-11-20 17:29:43,045 INFO L754 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2022-11-20 17:29:43,114 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:29:43,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:29:43 ImpRootNode [2022-11-20 17:29:43,120 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:29:43,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:29:43,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:29:43,122 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:29:43,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:29:41" (3/4) ... [2022-11-20 17:29:43,127 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:29:43,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 17:29:43,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 17:29:43,152 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-20 17:29:43,152 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 17:29:43,152 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 17:29:43,153 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:29:43,153 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:29:43,234 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:29:43,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:29:43,236 INFO L158 Benchmark]: Toolchain (without parser) took 3974.50ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 117.9MB in the beginning and 189.3MB in the end (delta: -71.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:29:43,236 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 115.3MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:29:43,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1328.37ms. Allocated memory is still 159.4MB. Free memory was 117.9MB in the beginning and 74.9MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-20 17:29:43,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.39ms. Allocated memory is still 159.4MB. Free memory was 74.9MB in the beginning and 71.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:29:43,238 INFO L158 Benchmark]: Boogie Preprocessor took 63.39ms. Allocated memory is still 159.4MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:29:43,238 INFO L158 Benchmark]: RCFGBuilder took 608.02ms. Allocated memory is still 159.4MB. Free memory was 70.0MB in the beginning and 51.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 17:29:43,239 INFO L158 Benchmark]: CodeCheck took 1747.33ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 51.2MB in the beginning and 193.4MB in the end (delta: -142.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-11-20 17:29:43,239 INFO L158 Benchmark]: Witness Printer took 113.73ms. Allocated memory is still 226.5MB. Free memory was 193.4MB in the beginning and 189.3MB in the end (delta: 4.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:29:43,241 INFO L339 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: 1.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 430 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 228 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 250 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 226 mSDtfsCounter, 250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 911 GetRequests, 891 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - PositiveResult [Line: 1627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1661]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1661]: 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: 1609]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 115.3MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1328.37ms. Allocated memory is still 159.4MB. Free memory was 117.9MB in the beginning and 74.9MB in the end (delta: 43.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.39ms. Allocated memory is still 159.4MB. Free memory was 74.9MB in the beginning and 71.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.39ms. Allocated memory is still 159.4MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 608.02ms. Allocated memory is still 159.4MB. Free memory was 70.0MB in the beginning and 51.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 1747.33ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 51.2MB in the beginning and 193.4MB in the end (delta: -142.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 113.73ms. Allocated memory is still 226.5MB. Free memory was 193.4MB in the beginning and 189.3MB in the end (delta: 4.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:29:43,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bfe6f67-8ca6-4971-be21-8e09b3833024/bin/ukojak-pZX7IvK2PQ/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