./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:25:24,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:25:24,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:25:24,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:25:24,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:25:24,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:25:24,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:25:24,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:25:24,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:25:24,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:25:24,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:25:24,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:25:24,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:25:24,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:25:24,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:25:24,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:25:24,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:25:24,410 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:25:24,410 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:25:24,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:25:24,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:25:24,412 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:25:24,412 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:25:24,413 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:25:24,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:25:24,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:24,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:25:24,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:25:24,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:25:24,415 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:25:24,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:25:24,417 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:25:24,417 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_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00 [2023-11-21 18:25:24,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:25:24,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:25:24,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:25:24,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:25:24,779 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:25:24,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2023-11-21 18:25:28,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:25:28,554 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:25:28,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2023-11-21 18:25:28,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/data/c52e02f67/780c8657b0e64c109cbc7fb15dc207b7/FLAG8714c7654 [2023-11-21 18:25:28,618 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/data/c52e02f67/780c8657b0e64c109cbc7fb15dc207b7 [2023-11-21 18:25:28,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:25:28,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:25:28,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:28,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:25:28,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:25:28,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195ba212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:28, skipping insertion in model container [2023-11-21 18:25:28,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:28" (1/1) ... [2023-11-21 18:25:28,742 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:25:29,255 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:29,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:29,833 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:25:29,866 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:29,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:30,064 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:30,064 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:30,064 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:30,064 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:30,065 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:30,065 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:30,116 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:25:30,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30 WrapperNode [2023-11-21 18:25:30,116 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:30,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:30,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:25:30,118 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:25:30,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,208 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-11-21 18:25:30,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:30,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:25:30,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:25:30,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:25:30,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:25:30,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:25:30,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:25:30,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:25:30,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:30,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:25:30,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:25:30,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:25:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:25:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:25:30,390 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:25:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:25:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:25:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:25:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:25:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:25:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:25:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:25:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:25:30,665 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:25:30,668 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:25:30,872 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:25:30,936 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:25:30,936 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:25:30,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:30 BoogieIcfgContainer [2023-11-21 18:25:30,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:25:30,939 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:25:30,940 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:25:30,959 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:25:30,960 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:25:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-21 18:25:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-21 18:25:31,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:25:31,066 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:31,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:31,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:31,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:31,567 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:25:31,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:25:31 ImpRootNode [2023-11-21 18:25:31,601 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:25:31,602 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:25:31,602 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:25:31,603 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:25:31,603 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:30" (3/4) ... [2023-11-21 18:25:31,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:25:31,606 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:25:31,607 INFO L158 Benchmark]: Toolchain (without parser) took 2977.81ms. Allocated memory is still 130.0MB. Free memory was 100.8MB in the beginning and 61.1MB in the end (delta: 39.7MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:31,608 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 99.5MB in the beginning and 99.4MB in the end (delta: 128.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:31,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1483.35ms. Allocated memory is still 130.0MB. Free memory was 100.8MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2023-11-21 18:25:31,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.29ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 95.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:31,610 INFO L158 Benchmark]: Boogie Preprocessor took 50.70ms. Allocated memory is still 130.0MB. Free memory was 95.6MB in the beginning and 94.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:31,611 INFO L158 Benchmark]: RCFGBuilder took 677.23ms. Allocated memory is still 130.0MB. Free memory was 94.1MB in the beginning and 79.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:25:31,612 INFO L158 Benchmark]: CodeCheck took 662.07ms. Allocated memory is still 130.0MB. Free memory was 79.4MB in the beginning and 61.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:25:31,612 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 130.0MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:31,617 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 1586]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData; [L1550] int CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={12:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_multiply_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] EXPR data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556-L1566] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1567] CWE191_Integer_Underflow__int_fgets_multiply_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_multiply_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_multiply_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1584] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1586] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, 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 130.0MB. Free memory was 99.5MB in the beginning and 99.4MB in the end (delta: 128.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1483.35ms. Allocated memory is still 130.0MB. Free memory was 100.8MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.29ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 95.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.70ms. Allocated memory is still 130.0MB. Free memory was 95.6MB in the beginning and 94.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 677.23ms. Allocated memory is still 130.0MB. Free memory was 94.1MB in the beginning and 79.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 662.07ms. Allocated memory is still 130.0MB. Free memory was 79.4MB in the beginning and 61.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 130.0MB. Free memory is still 61.1MB. 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 18:25:31,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:25:34,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:25:34,753 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:25:34,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:25:34,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:25:34,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:25:34,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:25:34,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:25:34,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:25:34,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:25:34,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:25:34,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:25:34,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:25:34,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:25:34,809 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:25:34,810 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:25:34,811 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:25:34,812 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:25:34,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:25:34,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:25:34,814 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:25:34,815 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:25:34,815 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:25:34,816 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:25:34,817 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:34,817 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:25:34,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:25:34,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:34,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:25:34,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:25:34,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:25:34,821 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:25:34,821 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:34,822 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:25:34,822 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:25:34,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:25:34,823 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_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00 [2023-11-21 18:25:35,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:25:35,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:25:35,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:25:35,424 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:25:35,425 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:25:35,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2023-11-21 18:25:39,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:25:40,127 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:25:40,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2023-11-21 18:25:40,183 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/data/a13f8e6d9/ebafa91eccfb476e85bae32731ad4dc0/FLAG1f823b9e1 [2023-11-21 18:25:40,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/data/a13f8e6d9/ebafa91eccfb476e85bae32731ad4dc0 [2023-11-21 18:25:40,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:25:40,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:25:40,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:40,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:25:40,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:25:40,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:40" (1/1) ... [2023-11-21 18:25:40,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eae1c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:40, skipping insertion in model container [2023-11-21 18:25:40,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:40" (1/1) ... [2023-11-21 18:25:40,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:25:40,918 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:41,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:41,711 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:25:41,750 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:41,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:42,047 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,047 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,048 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,048 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,048 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,048 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,058 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:25:42,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42 WrapperNode [2023-11-21 18:25:42,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:42,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:42,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:25:42,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:25:42,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,143 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2023-11-21 18:25:42,144 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:42,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:25:42,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:25:42,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:25:42,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,176 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:25:42,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:25:42,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:25:42,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:25:42,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:42,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:25:42,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:25:42,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:25:42,288 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:25:42,288 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:25:42,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:25:42,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:25:42,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:25:42,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:25:42,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:25:42,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:25:42,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:25:42,290 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:25:42,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:25:42,568 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:25:42,572 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:25:42,800 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:25:42,897 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:25:42,898 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:25:42,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:42 BoogieIcfgContainer [2023-11-21 18:25:42,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:25:42,901 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:25:42,901 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:25:42,914 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:25:42,916 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:25:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-21 18:25:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-21 18:25:43,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:25:43,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:43,031 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:43,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:25:43,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:25:43,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:25:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:43,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:43,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:43,660 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:25:43,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:25:43,669 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:25:43,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:25:43 ImpRootNode [2023-11-21 18:25:43,735 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:25:43,736 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:25:43,736 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:25:43,736 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:25:43,737 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:42" (3/4) ... [2023-11-21 18:25:43,739 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:25:43,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:25:43,742 INFO L158 Benchmark]: Toolchain (without parser) took 3520.11ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 58.9MB in the beginning and 74.5MB in the end (delta: -15.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,743 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:43,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1832.44ms. Allocated memory is still 86.0MB. Free memory was 58.8MB in the beginning and 43.1MB in the end (delta: 15.7MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.28ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 39.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,746 INFO L158 Benchmark]: Boogie Preprocessor took 46.38ms. Allocated memory is still 86.0MB. Free memory was 39.8MB in the beginning and 37.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,747 INFO L158 Benchmark]: RCFGBuilder took 707.52ms. Allocated memory is still 86.0MB. Free memory was 37.7MB in the beginning and 46.5MB in the end (delta: -8.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,748 INFO L158 Benchmark]: CodeCheck took 834.31ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.5MB in the beginning and 75.1MB in the end (delta: -28.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,749 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 104.9MB. Free memory was 75.1MB in the beginning and 74.5MB in the end (delta: 592.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:43,754 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 1586]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_68_badData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, 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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_multiply_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] EXPR data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556-L1566] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1567] CWE191_Integer_Underflow__int_fgets_multiply_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_multiply_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_multiply_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1584] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1586] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, 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 0.76ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1832.44ms. Allocated memory is still 86.0MB. Free memory was 58.8MB in the beginning and 43.1MB in the end (delta: 15.7MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.28ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 39.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.38ms. Allocated memory is still 86.0MB. Free memory was 39.8MB in the beginning and 37.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 707.52ms. Allocated memory is still 86.0MB. Free memory was 37.7MB in the beginning and 46.5MB in the end (delta: -8.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * CodeCheck took 834.31ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 46.5MB in the beginning and 75.1MB in the end (delta: -28.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 104.9MB. Free memory was 75.1MB in the beginning and 74.5MB in the end (delta: 592.1kB). 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 18:25:43,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5a5490a-58b0-48c0-8b87-99134dc2a6a9/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample