./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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 f21f78d6bc7f8a5735186dc84ba9fb66f3e7970e05da731cf254d80139248b52 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:16:56,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:16:56,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:16:56,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:16:56,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:16:56,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:16:56,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:16:56,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:16:56,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:16:56,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:16:56,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:16:56,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:16:56,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:16:56,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:16:56,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:16:56,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:16:56,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:16:56,872 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:16:56,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:16:56,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:16:56,873 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:16:56,875 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:16:56,876 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:16:56,877 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:16:56,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:16:56,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:16:56,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:16:56,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:16:56,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:16:56,879 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:16:56,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:16:56,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:16:56,881 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_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f21f78d6bc7f8a5735186dc84ba9fb66f3e7970e05da731cf254d80139248b52 [2023-11-23 20:16:57,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:16:57,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:16:57,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:16:57,225 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:16:57,226 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:16:57,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_bad.i [2023-11-23 20:17:00,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:17:00,887 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:17:00,888 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_bad.i [2023-11-23 20:17:00,921 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/data/021a8471a/e31382ed9db24f9eab4509d950308985/FLAGfc8f966e3 [2023-11-23 20:17:00,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/data/021a8471a/e31382ed9db24f9eab4509d950308985 [2023-11-23 20:17:00,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:17:00,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:17:00,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:17:00,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:17:00,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:17:00,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:17:00" (1/1) ... [2023-11-23 20:17:00,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554bd432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:00, skipping insertion in model container [2023-11-23 20:17:00,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:17:00" (1/1) ... [2023-11-23 20:17:01,041 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:17:01,473 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:17:02,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:17:02,115 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:17:02,164 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:17:02,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:17:02,410 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:02,411 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:02,411 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:02,411 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:02,411 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:02,412 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:02,420 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:17:02,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02 WrapperNode [2023-11-23 20:17:02,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:17:02,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:17:02,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:17:02,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:17:02,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,501 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2023-11-23 20:17:02,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:17:02,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:17:02,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:17:02,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:17:02,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:17:02,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:17:02,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:17:02,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:17:02,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:17:02,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:17:02,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:17:02,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:17:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:17:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:17:02,618 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:17:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:17:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:17:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:17:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:17:02,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:17:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:17:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:17:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:17:02,777 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:17:02,779 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:17:02,914 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:17:02,955 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:17:02,955 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:17:02,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:02 BoogieIcfgContainer [2023-11-23 20:17:02,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:17:02,958 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:17:02,959 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:17:02,969 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:17:02,970 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:02" (1/1) ... [2023-11-23 20:17:02,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:17:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:17:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:17:03,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:17:03,043 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:03,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:03,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-23 20:17:03,630 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-23 20:17:03,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:17:03,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:03,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:03,671 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:17:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:03,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:17:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:03,804 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:17:03,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:17:03 ImpRootNode [2023-11-23 20:17:03,838 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:17:03,839 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:17:03,839 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:17:03,840 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:17:03,840 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:02" (3/4) ... [2023-11-23 20:17:03,842 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:17:03,843 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:17:03,845 INFO L158 Benchmark]: Toolchain (without parser) took 2897.13ms. Allocated memory was 142.6MB in the beginning and 199.2MB in the end (delta: 56.6MB). Free memory was 93.0MB in the beginning and 137.3MB in the end (delta: -44.3MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2023-11-23 20:17:03,845 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:03,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1470.81ms. Allocated memory was 142.6MB in the beginning and 199.2MB in the end (delta: 56.6MB). Free memory was 93.0MB in the beginning and 128.9MB in the end (delta: -36.0MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:03,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.08ms. Allocated memory is still 199.2MB. Free memory was 128.9MB in the beginning and 125.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:03,849 INFO L158 Benchmark]: Boogie Preprocessor took 32.00ms. Allocated memory is still 199.2MB. Free memory was 125.9MB in the beginning and 124.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:03,850 INFO L158 Benchmark]: RCFGBuilder took 422.10ms. Allocated memory is still 199.2MB. Free memory was 123.9MB in the beginning and 110.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:17:03,854 INFO L158 Benchmark]: CodeCheck took 879.78ms. Allocated memory is still 199.2MB. Free memory was 110.0MB in the beginning and 137.3MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:03,855 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 199.2MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:03,862 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1563. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={12:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE190_Integer_Overflow__int_fgets_add_41_bad() [L1557] int data; [L1558] data = 0 [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] EXPR data = atoi(inputBuffer) [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559-L1569] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1570] CALL badSink(data) [L1551] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1470.81ms. Allocated memory was 142.6MB in the beginning and 199.2MB in the end (delta: 56.6MB). Free memory was 93.0MB in the beginning and 128.9MB in the end (delta: -36.0MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.08ms. Allocated memory is still 199.2MB. Free memory was 128.9MB in the beginning and 125.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.00ms. Allocated memory is still 199.2MB. Free memory was 125.9MB in the beginning and 124.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 422.10ms. Allocated memory is still 199.2MB. Free memory was 123.9MB in the beginning and 110.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 879.78ms. Allocated memory is still 199.2MB. Free memory was 110.0MB in the beginning and 137.3MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 199.2MB. Free memory is still 137.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:17:03,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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 f21f78d6bc7f8a5735186dc84ba9fb66f3e7970e05da731cf254d80139248b52 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:17:06,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:17:06,764 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:17:06,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:17:06,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:17:06,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:17:06,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:17:06,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:17:06,822 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:17:06,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:17:06,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:17:06,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:17:06,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:17:06,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:17:06,831 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:17:06,831 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:17:06,832 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:17:06,832 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:17:06,833 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:17:06,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:17:06,834 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:17:06,835 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:17:06,835 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:17:06,836 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:17:06,836 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:17:06,837 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:17:06,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:17:06,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:17:06,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:17:06,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:17:06,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:17:06,840 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:17:06,840 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:17:06,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:17:06,841 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:17:06,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:17:06,842 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f21f78d6bc7f8a5735186dc84ba9fb66f3e7970e05da731cf254d80139248b52 [2023-11-23 20:17:07,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:17:07,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:17:07,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:17:07,343 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:17:07,344 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:17:07,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_bad.i [2023-11-23 20:17:10,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:17:10,904 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:17:10,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_bad.i [2023-11-23 20:17:10,940 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/data/9057ff8f8/402c08ef3d6843eb815d66fe8df59537/FLAG6cdd961f2 [2023-11-23 20:17:10,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/data/9057ff8f8/402c08ef3d6843eb815d66fe8df59537 [2023-11-23 20:17:10,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:17:10,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:17:10,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:17:10,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:17:10,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:17:10,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:17:10" (1/1) ... [2023-11-23 20:17:10,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31282909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:10, skipping insertion in model container [2023-11-23 20:17:10,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:17:10" (1/1) ... [2023-11-23 20:17:11,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:17:11,540 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:17:12,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:17:12,099 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:17:12,139 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:17:12,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:17:12,479 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:12,479 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:12,479 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:12,479 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:12,480 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:12,480 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:17:12,488 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:17:12,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12 WrapperNode [2023-11-23 20:17:12,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:17:12,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:17:12,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:17:12,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:17:12,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,578 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2023-11-23 20:17:12,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:17:12,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:17:12,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:17:12,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:17:12,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:17:12,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:17:12,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:17:12,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:17:12,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:12" (1/1) ... [2023-11-23 20:17:12,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:17:12,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:17:12,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:17:12,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:17:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:17:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:17:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:17:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:17:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:17:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:17:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:17:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:17:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:17:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:17:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:17:12,948 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:17:12,951 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:17:13,134 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:17:13,189 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:17:13,189 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:17:13,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:13 BoogieIcfgContainer [2023-11-23 20:17:13,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:17:13,193 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:17:13,193 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:17:13,203 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:17:13,204 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:13" (1/1) ... [2023-11-23 20:17:13,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:17:13,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:17:13,287 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:17:13,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:17:13,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:13,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:17:13,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:17:13,305 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:17:13,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:17:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:13,498 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:17:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:13,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:17:13,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:17:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:13,581 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:17:13,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:17:13,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:13,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-23 20:17:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-23 20:17:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:17:13,618 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:13,618 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:17:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:17:13,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:17:13,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:17:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:13,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:17:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:14,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:17:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:17:14,118 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:17:14,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-23 20:17:14,120 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:17:14,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:17:14 ImpRootNode [2023-11-23 20:17:14,156 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:17:14,157 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:17:14,157 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:17:14,157 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:17:14,158 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:13" (3/4) ... [2023-11-23 20:17:14,160 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:17:14,161 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:17:14,162 INFO L158 Benchmark]: Toolchain (without parser) took 3197.28ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.6MB in the beginning and 74.3MB in the end (delta: -19.7MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:14,163 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:14,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1521.31ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 59.2MB in the end (delta: -4.9MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-11-23 20:17:14,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.40ms. Allocated memory is still 107.0MB. Free memory was 59.2MB in the beginning and 56.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:14,166 INFO L158 Benchmark]: Boogie Preprocessor took 37.04ms. Allocated memory is still 107.0MB. Free memory was 56.2MB in the beginning and 54.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:14,171 INFO L158 Benchmark]: RCFGBuilder took 573.97ms. Allocated memory is still 107.0MB. Free memory was 54.1MB in the beginning and 68.8MB in the end (delta: -14.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-11-23 20:17:14,171 INFO L158 Benchmark]: CodeCheck took 963.79ms. Allocated memory is still 107.0MB. Free memory was 68.8MB in the beginning and 74.9MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:14,173 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 107.0MB. Free memory was 74.9MB in the beginning and 74.3MB in the end (delta: 589.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:14,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1563. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE190_Integer_Overflow__int_fgets_add_41_bad() [L1557] int data; [L1558] data = 0 [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] EXPR data = atoi(inputBuffer) [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559-L1569] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1570] CALL badSink(data) [L1551] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1521.31ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 59.2MB in the end (delta: -4.9MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.40ms. Allocated memory is still 107.0MB. Free memory was 59.2MB in the beginning and 56.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.04ms. Allocated memory is still 107.0MB. Free memory was 56.2MB in the beginning and 54.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 573.97ms. Allocated memory is still 107.0MB. Free memory was 54.1MB in the beginning and 68.8MB in the end (delta: -14.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * CodeCheck took 963.79ms. Allocated memory is still 107.0MB. Free memory was 68.8MB in the beginning and 74.9MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 107.0MB. Free memory was 74.9MB in the beginning and 74.3MB in the end (delta: 589.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:17:14,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e9218f7-dbd3-4fdd-94af-1ca9a3356e2d/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: UNKNOWN: Overapproximated counterexample