./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2 --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 9f6a9e6642bce13b9b7eb892092d4d72a3baa12da72e5b9945db79ca3370801d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:39:57,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:39:58,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:39:58,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:39:58,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:39:58,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:39:58,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:39:58,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:39:58,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:39:58,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:39:58,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:39:58,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:39:58,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:39:58,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:39:58,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:39:58,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:39:58,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:39:58,076 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:39:58,077 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:39:58,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:39:58,078 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:39:58,079 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:39:58,080 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:39:58,080 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:39:58,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:39:58,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:39:58,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:39:58,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:39:58,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:39:58,084 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:39:58,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:39:58,085 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:39:58,085 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_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f6a9e6642bce13b9b7eb892092d4d72a3baa12da72e5b9945db79ca3370801d [2023-11-21 18:39:58,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:39:58,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:39:58,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:39:58,468 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:39:58,469 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:39:58,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2023-11-21 18:40:01,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:40:02,101 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:40:02,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2023-11-21 18:40:02,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/data/13f14ca20/673101928e8642d9a7aa1f697f35a509/FLAG76f7fbbc7 [2023-11-21 18:40:02,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/data/13f14ca20/673101928e8642d9a7aa1f697f35a509 [2023-11-21 18:40:02,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:40:02,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:40:02,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:02,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:40:02,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:40:02,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:02" (1/1) ... [2023-11-21 18:40:02,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ade9a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:02, skipping insertion in model container [2023-11-21 18:40:02,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:02" (1/1) ... [2023-11-21 18:40:02,286 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:40:02,841 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:40:04,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:04,274 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:40:04,297 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:40:04,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:04,642 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:04,642 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:04,642 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:04,642 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:04,643 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:04,643 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:04,651 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:40:04,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04 WrapperNode [2023-11-21 18:40:04,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:04,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:04,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:40:04,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:40:04,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,736 INFO L138 Inliner]: procedures = 938, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2023-11-21 18:40:04,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:04,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:40:04,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:40:04,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:40:04,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:40:04,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:40:04,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:40:04,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:40:04,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:04" (1/1) ... [2023-11-21 18:40:04,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:04,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:40:04,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:40:04,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:40:04,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:40:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:40:04,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:40:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:40:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:40:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:40:04,863 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:40:04,864 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:40:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:40:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:40:04,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:40:05,018 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:40:05,021 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:40:05,177 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:40:05,219 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:40:05,220 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:40:05,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:05 BoogieIcfgContainer [2023-11-21 18:40:05,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:40:05,222 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:40:05,222 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:40:05,232 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:40:05,232 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:05" (1/1) ... [2023-11-21 18:40:05,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:40:05,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-21 18:40:05,292 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-21 18:40:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:40:05,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:05,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:40:05,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:05,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2023-11-21 18:40:05,648 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-21 18:40:05,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:40:05,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:05,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:07,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:40:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:07,293 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:40:07,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:40:07 ImpRootNode [2023-11-21 18:40:07,335 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:40:07,337 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:40:07,337 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:40:07,337 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:40:07,338 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:05" (3/4) ... [2023-11-21 18:40:07,340 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:40:07,341 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:40:07,342 INFO L158 Benchmark]: Toolchain (without parser) took 5171.89ms. Allocated memory is still 159.4MB. Free memory was 110.1MB in the beginning and 114.6MB in the end (delta: -4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:07,343 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:07,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2479.70ms. Allocated memory is still 159.4MB. Free memory was 110.1MB in the beginning and 95.6MB in the end (delta: 14.5MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2023-11-21 18:40:07,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.83ms. Allocated memory is still 159.4MB. Free memory was 95.6MB in the beginning and 91.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:40:07,348 INFO L158 Benchmark]: Boogie Preprocessor took 34.83ms. Allocated memory is still 159.4MB. Free memory was 91.6MB in the beginning and 90.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:40:07,349 INFO L158 Benchmark]: RCFGBuilder took 448.37ms. Allocated memory is still 159.4MB. Free memory was 90.4MB in the beginning and 75.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:40:07,350 INFO L158 Benchmark]: CodeCheck took 2112.47ms. Allocated memory is still 159.4MB. Free memory was 75.7MB in the beginning and 114.6MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:07,355 INFO L158 Benchmark]: Witness Printer took 5.14ms. Allocated memory is still 159.4MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:07,363 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, 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, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 53 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, 1.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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: 1854]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842. 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); [L1863] 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) [L1863] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:31}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1864] CALL CWE190_Integer_Overflow__int_fgets_square_16_bad() [L1834] int data; [L1835] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1836] COND TRUE 1 [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1840] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] EXPR data = atoi(inputBuffer) [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1838-L1848] { 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=46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1854] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=46341, 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 0.34ms. Allocated memory is still 109.1MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2479.70ms. Allocated memory is still 159.4MB. Free memory was 110.1MB in the beginning and 95.6MB in the end (delta: 14.5MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.83ms. Allocated memory is still 159.4MB. Free memory was 95.6MB in the beginning and 91.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.83ms. Allocated memory is still 159.4MB. Free memory was 91.6MB in the beginning and 90.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.37ms. Allocated memory is still 159.4MB. Free memory was 90.4MB in the beginning and 75.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 2112.47ms. Allocated memory is still 159.4MB. Free memory was 75.7MB in the beginning and 114.6MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.14ms. Allocated memory is still 159.4MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:40:07,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/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_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2 --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 9f6a9e6642bce13b9b7eb892092d4d72a3baa12da72e5b9945db79ca3370801d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:40:10,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:40:10,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:40:10,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:40:10,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:40:10,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:40:10,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:40:10,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:40:10,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:40:10,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:40:10,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:40:10,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:40:10,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:40:10,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:40:10,374 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:40:10,374 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:40:10,375 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:40:10,375 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:40:10,376 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:40:10,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:40:10,377 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:40:10,378 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:40:10,378 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:40:10,379 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:40:10,379 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:10,380 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:40:10,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:40:10,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:10,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:40:10,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:40:10,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:40:10,383 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:40:10,384 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:10,384 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:40:10,384 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:40:10,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:40:10,385 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_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f6a9e6642bce13b9b7eb892092d4d72a3baa12da72e5b9945db79ca3370801d [2023-11-21 18:40:10,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:40:10,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:40:10,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:40:10,842 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:40:10,843 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:40:10,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2023-11-21 18:40:14,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:40:14,622 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:40:14,622 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2023-11-21 18:40:14,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/data/8bbf07772/27042ce6a75b472ca3f371a131c219d2/FLAGb445d2c00 [2023-11-21 18:40:14,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/data/8bbf07772/27042ce6a75b472ca3f371a131c219d2 [2023-11-21 18:40:14,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:40:14,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:40:14,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:14,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:40:14,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:40:14,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:14" (1/1) ... [2023-11-21 18:40:14,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9750107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:14, skipping insertion in model container [2023-11-21 18:40:14,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:14" (1/1) ... [2023-11-21 18:40:14,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:40:15,404 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:40:16,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:16,677 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:40:16,708 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:40:16,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:17,075 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:17,076 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:17,076 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:17,076 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:17,076 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:17,077 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:17,085 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:40:17,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17 WrapperNode [2023-11-21 18:40:17,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:17,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:17,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:40:17,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:40:17,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,183 INFO L138 Inliner]: procedures = 943, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-11-21 18:40:17,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:17,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:40:17,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:40:17,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:40:17,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:40:17,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:40:17,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:40:17,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:40:17,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:17" (1/1) ... [2023-11-21 18:40:17,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:17,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:40:17,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:40:17,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:40:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:40:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:40:17,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:40:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:40:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:40:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:40:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:40:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:40:17,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:40:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:40:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:40:17,556 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:40:17,559 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:40:20,153 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:40:20,229 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:40:20,230 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:40:20,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:20 BoogieIcfgContainer [2023-11-21 18:40:20,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:40:20,234 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:40:20,234 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:40:20,245 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:40:20,246 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:20" (1/1) ... [2023-11-21 18:40:20,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:40:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-21 18:40:20,328 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-21 18:40:20,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:40:20,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:20,336 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:20,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:40:20,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:40:20,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:40:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:20,526 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:40:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:20,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:40:20,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:40:20,608 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:40:20,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:40:20,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2023-11-21 18:40:20,653 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-21 18:40:20,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:40:20,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:20,654 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:20,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:40:20,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:40:20,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_128f257c-8096-453e-a694-f73264dfbc95/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process