./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_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_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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 ec1d6a1f69e41a5da2bca04baded77905b2f6d421778938f81dd592290f191d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:08:21,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:08:21,554 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:08:21,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:08:21,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:08:21,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:08:21,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:08:21,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:08:21,609 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:08:21,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:08:21,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:08:21,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:08:21,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:08:21,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:08:21,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:08:21,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:08:21,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:08:21,618 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:08:21,619 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:08:21,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:08:21,620 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:08:21,621 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:08:21,621 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:08:21,622 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:08:21,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:08:21,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:21,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:08:21,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:08:21,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:08:21,625 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:08:21,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:08:21,626 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:08:21,626 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_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1d6a1f69e41a5da2bca04baded77905b2f6d421778938f81dd592290f191d5 [2023-11-23 20:08:21,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:08:22,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:08:22,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:08:22,022 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:08:22,022 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:08:22,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-23 20:08:25,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:08:25,669 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:08:25,670 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-23 20:08:25,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/data/b6717fade/b7005876ec81419cb17a7f35b064c4d9/FLAGfee8c66b1 [2023-11-23 20:08:25,712 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/data/b6717fade/b7005876ec81419cb17a7f35b064c4d9 [2023-11-23 20:08:25,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:08:25,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:08:25,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:25,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:08:25,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:08:25,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b8fd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:25, skipping insertion in model container [2023-11-23 20:08:25,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:25" (1/1) ... [2023-11-23 20:08:25,839 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:08:26,258 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:26,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:26,954 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:08:26,977 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:27,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:27,213 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:27,213 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:27,214 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:27,214 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:27,214 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:27,214 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:27,222 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:08:27,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27 WrapperNode [2023-11-23 20:08:27,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:27,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:27,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:08:27,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:08:27,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,288 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-23 20:08:27,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:27,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:08:27,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:08:27,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:08:27,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:08:27,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:08:27,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:08:27,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:08:27,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:27,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:08:27,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:08:27,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:08:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:08:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:08:27,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:08:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:08:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:08:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:08:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:08:27,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:08:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:08:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:08:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:08:27,641 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:08:27,644 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:08:27,842 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:08:27,902 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:08:27,903 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:08:27,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:27 BoogieIcfgContainer [2023-11-23 20:08:27,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:08:27,907 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:08:27,907 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:08:27,919 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:08:27,919 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:27" (1/1) ... [2023-11-23 20:08:27,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:08:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:08:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:08:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:08:28,005 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:28,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:28,324 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 20:08:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:28,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-23 20:08:28,383 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-23 20:08:28,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:08:28,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:28,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:28,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:28,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:28,610 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:08:28,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:08:28 ImpRootNode [2023-11-23 20:08:28,640 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:08:28,641 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:08:28,641 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:08:28,641 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:08:28,642 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:27" (3/4) ... [2023-11-23 20:08:28,644 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:08:28,645 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:08:28,646 INFO L158 Benchmark]: Toolchain (without parser) took 2930.08ms. Allocated memory is still 153.1MB. Free memory was 112.3MB in the beginning and 115.1MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:28,647 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 109.1MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:28,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1505.45ms. Allocated memory is still 153.1MB. Free memory was 112.3MB in the beginning and 105.8MB in the end (delta: 6.5MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:28,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.39ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 103.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:28,653 INFO L158 Benchmark]: Boogie Preprocessor took 33.69ms. Allocated memory is still 153.1MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:28,653 INFO L158 Benchmark]: RCFGBuilder took 582.28ms. Allocated memory is still 153.1MB. Free memory was 100.9MB in the beginning and 86.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:08:28,655 INFO L158 Benchmark]: CodeCheck took 733.31ms. Allocated memory is still 153.1MB. Free memory was 86.9MB in the beginning and 115.3MB in the end (delta: -28.4MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2023-11-23 20:08:28,656 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 153.1MB. Free memory was 115.3MB in the beginning and 115.1MB in the end (delta: 178.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:28,660 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 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, 0.2s 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. 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); [L1572] 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) [L1572] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=19, argc=19, argv={13:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE190_Integer_Overflow__int_fgets_preinc_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } 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] [L1564] ++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 0.24ms. Allocated memory is still 109.1MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1505.45ms. Allocated memory is still 153.1MB. Free memory was 112.3MB in the beginning and 105.8MB in the end (delta: 6.5MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.39ms. Allocated memory is still 153.1MB. Free memory was 105.8MB in the beginning and 103.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.69ms. Allocated memory is still 153.1MB. Free memory was 103.0MB in the beginning and 100.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.28ms. Allocated memory is still 153.1MB. Free memory was 100.9MB in the beginning and 86.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 733.31ms. Allocated memory is still 153.1MB. Free memory was 86.9MB in the beginning and 115.3MB in the end (delta: -28.4MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 153.1MB. Free memory was 115.3MB in the beginning and 115.1MB in the end (delta: 178.5kB). 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 20:08:28,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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 ec1d6a1f69e41a5da2bca04baded77905b2f6d421778938f81dd592290f191d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:08:31,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:08:31,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:08:31,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:08:31,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:08:31,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:08:31,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:08:31,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:08:31,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:08:31,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:08:31,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:08:31,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:08:31,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:08:31,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:08:31,520 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:08:31,520 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:08:31,521 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:08:31,521 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:08:31,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:08:31,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:08:31,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:08:31,523 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:08:31,523 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:08:31,524 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:08:31,524 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:31,524 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:08:31,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:08:31,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:31,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:08:31,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:08:31,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:08:31,528 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:08:31,528 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:31,528 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:08:31,528 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:08:31,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:08:31,529 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_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1d6a1f69e41a5da2bca04baded77905b2f6d421778938f81dd592290f191d5 [2023-11-23 20:08:31,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:08:31,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:08:31,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:08:31,947 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:08:31,948 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:08:31,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-23 20:08:35,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:08:35,748 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:08:35,749 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-23 20:08:35,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/data/86d80ec33/70a8318e4fcc4b5fadaec3feeed7488e/FLAG3420fd8f5 [2023-11-23 20:08:35,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/data/86d80ec33/70a8318e4fcc4b5fadaec3feeed7488e [2023-11-23 20:08:35,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:08:35,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:08:35,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:35,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:08:35,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:08:35,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:35" (1/1) ... [2023-11-23 20:08:35,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5e45ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:35, skipping insertion in model container [2023-11-23 20:08:35,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:35" (1/1) ... [2023-11-23 20:08:35,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:08:36,471 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:37,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:37,325 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:08:37,350 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:08:37,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:37,545 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:37,545 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:37,545 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:37,545 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:37,545 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:37,546 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:08:37,554 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:08:37,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37 WrapperNode [2023-11-23 20:08:37,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:37,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:37,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:08:37,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:08:37,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,637 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-23 20:08:37,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:37,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:08:37,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:08:37,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:08:37,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,662 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:08:37,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:08:37,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:08:37,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:08:37,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:37" (1/1) ... [2023-11-23 20:08:37,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:37,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:08:37,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:08:37,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:08:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:08:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:08:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:08:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:08:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:08:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:08:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:08:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:08:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:08:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:08:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:08:37,985 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:08:37,988 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:08:38,165 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:08:38,243 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:08:38,244 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:08:38,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:38 BoogieIcfgContainer [2023-11-23 20:08:38,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:08:38,247 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:08:38,247 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:08:38,257 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:08:38,258 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:38" (1/1) ... [2023-11-23 20:08:38,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:08:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:38,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:08:38,342 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:08:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:08:38,348 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:38,349 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:38,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:08:38,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:08:38,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:08:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:38,540 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:08:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:38,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:08:38,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:08:38,620 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 20:08:38,623 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:08:38,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:08:38,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:38,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-23 20:08:38,659 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-23 20:08:38,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:08:38,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:38,660 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:08:38,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:08:38,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:08:38,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:08:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:38,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:39,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:08:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:08:39,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:08:39,201 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:08:39,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:08:39 ImpRootNode [2023-11-23 20:08:39,241 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:08:39,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:08:39,242 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:08:39,242 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:08:39,243 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:38" (3/4) ... [2023-11-23 20:08:39,245 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:08:39,246 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:08:39,248 INFO L158 Benchmark]: Toolchain (without parser) took 3429.89ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 43.9MB in the beginning and 74.2MB in the end (delta: -30.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-23 20:08:39,248 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:39,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1736.28ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 43.6MB in the beginning and 29.6MB in the end (delta: 14.0MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2023-11-23 20:08:39,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.63ms. Allocated memory is still 102.8MB. Free memory was 29.6MB in the beginning and 77.8MB in the end (delta: -48.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:39,252 INFO L158 Benchmark]: Boogie Preprocessor took 47.21ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 75.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:39,257 INFO L158 Benchmark]: RCFGBuilder took 559.91ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 59.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:08:39,258 INFO L158 Benchmark]: CodeCheck took 994.42ms. Allocated memory is still 102.8MB. Free memory was 59.0MB in the beginning and 75.0MB in the end (delta: -16.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:39,260 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 102.8MB. Free memory was 75.0MB in the beginning and 74.2MB in the end (delta: 756.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:39,269 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, 61 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. 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); [L1572] 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) [L1572] 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] [L1573] CALL CWE190_Integer_Overflow__int_fgets_preinc_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } 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] [L1564] ++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 0.31ms. Allocated memory is still 71.3MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1736.28ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 43.6MB in the beginning and 29.6MB in the end (delta: 14.0MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.63ms. Allocated memory is still 102.8MB. Free memory was 29.6MB in the beginning and 77.8MB in the end (delta: -48.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.21ms. Allocated memory is still 102.8MB. Free memory was 77.8MB in the beginning and 75.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.91ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 59.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 994.42ms. Allocated memory is still 102.8MB. Free memory was 59.0MB in the beginning and 75.0MB in the end (delta: -16.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 102.8MB. Free memory was 75.0MB in the beginning and 74.2MB in the end (delta: 756.2kB). 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 20:08:39,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0636e0f9-2091-4c3d-a702-d74e7f59bb5a/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