./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_18_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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 5e9901388dc3c778e71383b38d5c8e69dc8ac06a0319c62b3ce21e9bdd7b5e3c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:05:54,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:05:55,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:05:55,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:05:55,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:05:55,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:05:55,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:05:55,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:05:55,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:05:55,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:05:55,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:05:55,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:05:55,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:05:55,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:05:55,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:05:55,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:05:55,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:05:55,219 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:05:55,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:05:55,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:05:55,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:05:55,222 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:05:55,222 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:05:55,223 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:05:55,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:05:55,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:05:55,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:05:55,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:05:55,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:05:55,226 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:05:55,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:05:55,227 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:05:55,228 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_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e9901388dc3c778e71383b38d5c8e69dc8ac06a0319c62b3ce21e9bdd7b5e3c [2023-11-23 20:05:55,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:05:55,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:05:55,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:05:55,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:05:55,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:05:55,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_18_bad.i [2023-11-23 20:05:59,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:05:59,737 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:05:59,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_18_bad.i [2023-11-23 20:05:59,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/data/97edec11a/1765d96876844cb4971fa28939355bc1/FLAG85d97afe2 [2023-11-23 20:05:59,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/data/97edec11a/1765d96876844cb4971fa28939355bc1 [2023-11-23 20:05:59,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:05:59,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:05:59,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:05:59,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:05:59,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:05:59,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:05:59" (1/1) ... [2023-11-23 20:05:59,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe8d9bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:05:59, skipping insertion in model container [2023-11-23 20:05:59,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:05:59" (1/1) ... [2023-11-23 20:05:59,931 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:06:00,542 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:01,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:01,217 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:06:01,255 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:01,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:01,572 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:01,573 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:01,573 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:01,573 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:01,574 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:01,574 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:01,584 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:06:01,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01 WrapperNode [2023-11-23 20:06:01,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:01,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:01,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:06:01,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:06:01,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,667 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-11-23 20:06:01,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:01,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:06:01,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:06:01,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:06:01,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:06:01,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:06:01,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:06:01,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:06:01,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:01" (1/1) ... [2023-11-23 20:06:01,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:01,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:06:01,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:06:01,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:06:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:06:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:06:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:06:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:06:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:06:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:06:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:06:01,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:06:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:06:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:06:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:06:01,990 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:06:01,993 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:06:02,149 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:06:02,244 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:06:02,258 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:06:02,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:02 BoogieIcfgContainer [2023-11-23 20:06:02,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:06:02,262 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:06:02,262 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:06:02,276 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:06:02,277 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:02" (1/1) ... [2023-11-23 20:06:02,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:06:02,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:06:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:06:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:06:02,393 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:02,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:06:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:03,089 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 20:06:03,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:03,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-23 20:06:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-23 20:06:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:06:03,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:03,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:06:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:03,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:06:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:03,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:06:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:03,391 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:06:03,423 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-11-23 20:06:03,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:06:03 ImpRootNode [2023-11-23 20:06:03,429 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:06:03,430 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:06:03,430 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:06:03,431 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:06:03,431 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:02" (3/4) ... [2023-11-23 20:06:03,434 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:06:03,436 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:06:03,437 INFO L158 Benchmark]: Toolchain (without parser) took 3635.00ms. Allocated memory is still 167.8MB. Free memory was 127.3MB in the beginning and 122.1MB in the end (delta: 5.2MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:03,438 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:03,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1779.23ms. Allocated memory is still 167.8MB. Free memory was 127.3MB in the beginning and 82.2MB in the end (delta: 45.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:03,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.33ms. Allocated memory is still 167.8MB. Free memory was 82.2MB in the beginning and 79.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:03,441 INFO L158 Benchmark]: Boogie Preprocessor took 37.67ms. Allocated memory is still 167.8MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:03,442 INFO L158 Benchmark]: RCFGBuilder took 553.96ms. Allocated memory is still 167.8MB. Free memory was 78.0MB in the beginning and 62.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:06:03,443 INFO L158 Benchmark]: CodeCheck took 1167.50ms. Allocated memory is still 167.8MB. Free memory was 62.8MB in the beginning and 122.1MB in the end (delta: -59.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:03,443 INFO L158 Benchmark]: Witness Printer took 5.82ms. Allocated memory is still 167.8MB. Free memory is still 122.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:03,448 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: 1.1s, 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 8 mSDtfsCounter, 11 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1576] 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) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=27, argc=27, argv={26:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_postinc_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1568] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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 0.21ms. Allocated memory is still 115.3MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1779.23ms. Allocated memory is still 167.8MB. Free memory was 127.3MB in the beginning and 82.2MB in the end (delta: 45.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.33ms. Allocated memory is still 167.8MB. Free memory was 82.2MB in the beginning and 79.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.67ms. Allocated memory is still 167.8MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.96ms. Allocated memory is still 167.8MB. Free memory was 78.0MB in the beginning and 62.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1167.50ms. Allocated memory is still 167.8MB. Free memory was 62.8MB in the beginning and 122.1MB in the end (delta: -59.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.82ms. Allocated memory is still 167.8MB. Free memory is still 122.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:06:03,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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 5e9901388dc3c778e71383b38d5c8e69dc8ac06a0319c62b3ce21e9bdd7b5e3c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:06:06,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:06:06,771 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:06:06,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:06:06,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:06:06,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:06:06,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:06:06,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:06:06,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:06:06,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:06:06,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:06:06,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:06:06,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:06:06,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:06:06,820 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:06:06,821 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:06:06,822 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:06:06,822 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:06:06,823 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:06:06,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:06:06,825 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:06:06,826 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:06:06,826 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:06:06,827 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:06:06,827 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:06:06,828 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:06:06,829 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:06:06,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:06,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:06:06,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:06:06,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:06:06,832 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:06:06,833 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:06:06,833 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:06:06,834 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:06:06,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:06:06,835 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_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e9901388dc3c778e71383b38d5c8e69dc8ac06a0319c62b3ce21e9bdd7b5e3c [2023-11-23 20:06:07,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:06:07,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:06:07,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:06:07,341 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:06:07,342 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:06:07,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_18_bad.i [2023-11-23 20:06:10,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:06:11,533 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:06:11,536 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_18_bad.i [2023-11-23 20:06:11,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/data/9a867fe08/f4f5d4762ce54adb83f20826f587bff1/FLAGf64447123 [2023-11-23 20:06:11,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/data/9a867fe08/f4f5d4762ce54adb83f20826f587bff1 [2023-11-23 20:06:11,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:06:11,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:06:11,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:11,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:06:11,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:06:11,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:06:11" (1/1) ... [2023-11-23 20:06:11,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7483e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:11, skipping insertion in model container [2023-11-23 20:06:11,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:06:11" (1/1) ... [2023-11-23 20:06:11,766 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:06:12,313 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:13,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:13,164 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:06:13,212 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:13,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:13,532 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:13,532 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:13,533 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:13,533 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:13,533 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:13,533 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:13,543 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:06:13,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13 WrapperNode [2023-11-23 20:06:13,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:13,546 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:13,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:06:13,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:06:13,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,641 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-11-23 20:06:13,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:13,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:06:13,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:06:13,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:06:13,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,702 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:06:13,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:06:13,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:06:13,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:06:13,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:13" (1/1) ... [2023-11-23 20:06:13,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:13,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:06:13,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:06:13,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:06:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:06:13,848 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:06:13,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:06:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:06:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:06:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:06:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:06:13,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:06:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:06:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:06:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:06:14,153 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:06:14,157 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:06:14,399 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:06:14,496 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:06:14,497 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:06:14,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:14 BoogieIcfgContainer [2023-11-23 20:06:14,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:06:14,500 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:06:14,500 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:06:14,514 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:06:14,515 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:06:14,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:06:14,621 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:06:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:06:14,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:14,632 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:06:14,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:06:14,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:06:14,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:06:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:14,881 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:06:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:14,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:06:14,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:06:14,980 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 20:06:14,983 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:06:14,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:06:15,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-23 20:06:15,032 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-23 20:06:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:06:15,033 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:15,033 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:06:15,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:06:15,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:06:15,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:06:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:15,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:06:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:15,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:06:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:15,616 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:06:15,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:06:15,624 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:06:15,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated [2023-11-23 20:06:15,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:06:15 ImpRootNode [2023-11-23 20:06:15,676 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:06:15,676 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:06:15,677 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:06:15,677 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:06:15,677 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:14" (3/4) ... [2023-11-23 20:06:15,680 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:06:15,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:06:15,682 INFO L158 Benchmark]: Toolchain (without parser) took 4063.16ms. Allocated memory is still 107.0MB. Free memory was 80.2MB in the beginning and 58.9MB in the end (delta: 21.3MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-11-23 20:06:15,683 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:15,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1918.19ms. Allocated memory is still 107.0MB. Free memory was 80.2MB in the beginning and 74.7MB in the end (delta: 5.5MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2023-11-23 20:06:15,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.95ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 71.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:06:15,687 INFO L158 Benchmark]: Boogie Preprocessor took 90.41ms. Allocated memory is still 107.0MB. Free memory was 71.6MB in the beginning and 69.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:15,691 INFO L158 Benchmark]: RCFGBuilder took 765.59ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 52.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:06:15,695 INFO L158 Benchmark]: CodeCheck took 1175.48ms. Allocated memory is still 107.0MB. Free memory was 52.2MB in the beginning and 58.9MB in the end (delta: -6.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:15,696 INFO L158 Benchmark]: Witness Printer took 5.15ms. Allocated memory is still 107.0MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:15,707 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: 1.1s, 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, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 4 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, 62 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE190_Integer_Overflow__int_fgets_postinc_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1568] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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 0.63ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1918.19ms. Allocated memory is still 107.0MB. Free memory was 80.2MB in the beginning and 74.7MB in the end (delta: 5.5MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.95ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 71.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.41ms. Allocated memory is still 107.0MB. Free memory was 71.6MB in the beginning and 69.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 765.59ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 52.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1175.48ms. Allocated memory is still 107.0MB. Free memory was 52.2MB in the beginning and 58.9MB in the end (delta: -6.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.15ms. Allocated memory is still 107.0MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:06:15,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ad3c83-9d3f-43dd-889d-50031ba8b12b/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