./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_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_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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 9714151ba458e9137d8fc02a6bfb7ca4fc5e33e4031f29c46780e222f60d6f78 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:40:02,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:40:02,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:40:02,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:40:02,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:40:02,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:40:02,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:40:02,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:40:02,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:40:02,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:40:02,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:40:02,751 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:40:02,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:40:02,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:40:02,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:40:02,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:40:02,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:40:02,762 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:40:02,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:40:02,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:40:02,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:40:02,764 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:40:02,765 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:40:02,765 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:40:02,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:40:02,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:02,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:40:02,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:40:02,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:40:02,769 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:40:02,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:40:02,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:40:02,770 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_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9714151ba458e9137d8fc02a6bfb7ca4fc5e33e4031f29c46780e222f60d6f78 [2023-11-21 18:40:03,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:40:03,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:40:03,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:40:03,148 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:40:03,149 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:40:03,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_bad.i [2023-11-21 18:40:06,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:40:06,779 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:40:06,780 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_bad.i [2023-11-21 18:40:06,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/data/2854a3063/9c6c4d7e53fa4f0bbd7b96a26480c574/FLAG35cdcd72d [2023-11-21 18:40:06,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/data/2854a3063/9c6c4d7e53fa4f0bbd7b96a26480c574 [2023-11-21 18:40:06,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:40:06,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:40:06,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:06,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:40:06,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:40:06,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:06" (1/1) ... [2023-11-21 18:40:06,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a899fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:06, skipping insertion in model container [2023-11-21 18:40:06,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:06" (1/1) ... [2023-11-21 18:40:06,957 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:40:07,415 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:40:07,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:07,996 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:40:08,023 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:40:08,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:08,278 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:08,279 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:08,279 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:08,279 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:08,279 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:08,279 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:08,287 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:40:08,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08 WrapperNode [2023-11-21 18:40:08,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:08,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:08,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:40:08,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:40:08,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,405 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-11-21 18:40:08,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:08,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:40:08,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:40:08,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:40:08,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:40:08,436 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:40:08,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:40:08,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:40:08,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:08,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:40:08,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:40:08,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:40:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:40:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:40:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:40:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:40:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:40:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:40:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:40:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:40:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:40:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:40:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:40:08,677 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:40:08,680 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:40:08,885 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:40:08,924 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:40:08,925 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:40:08,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:08 BoogieIcfgContainer [2023-11-21 18:40:08,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:40:08,927 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:40:08,927 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:40:08,937 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:40:08,937 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:08" (1/1) ... [2023-11-21 18:40:08,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:40:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2023-11-21 18:40:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-21 18:40:09,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:40:09,005 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:09,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:09,248 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 18:40:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:09,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2023-11-21 18:40:09,288 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-11-21 18:40:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:40:09,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:09,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:09,533 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 18:40:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2023-11-21 18:40:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2023-11-21 18:40:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:40:09,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:09,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:09,755 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 18:40:09,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:09,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2023-11-21 18:40:09,776 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-21 18:40:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:40:09,777 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:09,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:40:09,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:09,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2023-11-21 18:40:09,914 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-21 18:40:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:40:09,915 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:09,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:10,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:40:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2023-11-21 18:40:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2023-11-21 18:40:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:40:10,297 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:40:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:10,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2023-11-21 18:40:10,516 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2023-11-21 18:40:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:40:10,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:10,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:40:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:10,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:40:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:10,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:40:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:10,702 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2023-11-21 18:40:10,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:40:10 ImpRootNode [2023-11-21 18:40:10,757 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:40:10,758 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:40:10,758 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:40:10,758 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:40:10,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:08" (3/4) ... [2023-11-21 18:40:10,762 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:40:10,763 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:40:10,765 INFO L158 Benchmark]: Toolchain (without parser) took 3930.34ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 109.2MB in the beginning and 94.0MB in the end (delta: 15.2MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2023-11-21 18:40:10,766 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 159.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:10,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1452.93ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 114.0MB in the end (delta: -5.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2023-11-21 18:40:10,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.51ms. Allocated memory is still 159.4MB. Free memory was 114.0MB in the beginning and 111.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:40:10,769 INFO L158 Benchmark]: Boogie Preprocessor took 29.59ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 108.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:40:10,775 INFO L158 Benchmark]: RCFGBuilder took 490.64ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 93.0MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:40:10,777 INFO L158 Benchmark]: CodeCheck took 1830.03ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 93.0MB in the beginning and 94.0MB in the end (delta: -978.1kB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2023-11-21 18:40:10,778 INFO L158 Benchmark]: Witness Printer took 6.28ms. Allocated memory is still 199.2MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:10,786 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 96 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 503 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 6/7 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=28, argc=28, argv={12:27}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_add_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 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, i=0] [L1553] COND TRUE i < 1 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1553] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) [L1567] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1567] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1570] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 159.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1452.93ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 114.0MB in the end (delta: -5.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.51ms. Allocated memory is still 159.4MB. Free memory was 114.0MB in the beginning and 111.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.59ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 108.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.64ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 93.0MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1830.03ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 93.0MB in the beginning and 94.0MB in the end (delta: -978.1kB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Witness Printer took 6.28ms. Allocated memory is still 199.2MB. Free memory is still 94.0MB. 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 18:40:10,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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 9714151ba458e9137d8fc02a6bfb7ca4fc5e33e4031f29c46780e222f60d6f78 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:40:13,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:40:13,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:40:13,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:40:13,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:40:13,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:40:13,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:40:13,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:40:13,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:40:13,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:40:13,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:40:13,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:40:13,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:40:13,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:40:13,855 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:40:13,856 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:40:13,857 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:40:13,857 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:40:13,858 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:40:13,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:40:13,859 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:40:13,860 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:40:13,861 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:40:13,861 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:40:13,862 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:13,862 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:40:13,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:40:13,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:13,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:40:13,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:40:13,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:40:13,867 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:40:13,867 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:13,868 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:40:13,868 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:40:13,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:40:13,869 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_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9714151ba458e9137d8fc02a6bfb7ca4fc5e33e4031f29c46780e222f60d6f78 [2023-11-21 18:40:14,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:40:14,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:40:14,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:40:14,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:40:14,330 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:40:14,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_bad.i [2023-11-21 18:40:17,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:40:18,164 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:40:18,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_bad.i [2023-11-21 18:40:18,198 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/data/6a4f12146/2b9b5a831be440bdb79e62a4dd3c3f3a/FLAG329bdd35b [2023-11-21 18:40:18,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/data/6a4f12146/2b9b5a831be440bdb79e62a4dd3c3f3a [2023-11-21 18:40:18,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:40:18,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:40:18,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:18,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:40:18,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:40:18,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:18" (1/1) ... [2023-11-21 18:40:18,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2087638e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:18, skipping insertion in model container [2023-11-21 18:40:18,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:40:18" (1/1) ... [2023-11-21 18:40:18,325 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:40:18,774 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:40:19,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:19,479 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:40:19,518 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:40:19,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:40:19,814 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:19,815 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:19,815 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:19,815 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:19,815 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:19,815 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:40:19,824 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:40:19,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19 WrapperNode [2023-11-21 18:40:19,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:40:19,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:19,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:40:19,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:40:19,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:19,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:19,954 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-11-21 18:40:19,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:40:19,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:40:19,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:40:19,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:40:19,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:19,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:19,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:19,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:20,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:20,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:20,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:20,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:20,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:40:20,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:40:20,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:40:20,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:40:20,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:40:19" (1/1) ... [2023-11-21 18:40:20,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:20,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:40:20,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:40:20,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:40:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:40:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:40:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:40:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:40:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:40:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:40:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:40:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:40:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:40:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:40:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:40:20,282 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:40:20,285 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:40:20,522 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:40:20,620 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:40:20,620 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:40:20,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:20 BoogieIcfgContainer [2023-11-21 18:40:20,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:40:20,623 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:40:20,624 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:40:20,635 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:40:20,636 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 18:40:20,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:40:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2023-11-21 18:40:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-21 18:40:20,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:40:20,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:20,743 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:20,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:40:20,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:40:20,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:40:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:20,921 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:40:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:20,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:40:20,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:21,003 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 18:40:21,006 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:40:21,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:40:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2023-11-21 18:40:21,046 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-21 18:40:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:40:21,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:21,048 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:21,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:40:21,049 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:40:21,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:40:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:21,181 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:40:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:21,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:40:21,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:21,234 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 18:40:21,237 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:40:21,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:40:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2023-11-21 18:40:21,255 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-11-21 18:40:21,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:40:21,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:21,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:21,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:40:21,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:40:21,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-21 18:40:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:21,405 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:40:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:21,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:40:21,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:21,472 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 18:40:21,475 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:40:21,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-21 18:40:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2023-11-21 18:40:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2023-11-21 18:40:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:40:21,526 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:21,526 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:21,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:40:21,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:40:21,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-21 18:40:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:21,706 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:40:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:21,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:40:21,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:21,807 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 18:40:21,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-21 18:40:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 32 states and 45 transitions. [2023-11-21 18:40:21,985 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2023-11-21 18:40:21,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:40:21,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:21,986 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:21,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:40:21,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:40:22,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-21 18:40:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:22,161 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:40:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:40:22,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:40:22,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:40:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:40:22,230 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:40:22,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-21 18:40:22,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:40:22,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2023-11-21 18:40:22,245 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2023-11-21 18:40:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:40:22,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:40:22,247 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:40:22,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:40:22,248 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:40:22,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-21 18:40:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:22,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:40:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:22,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:40:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:40:22,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-21 18:40:22,757 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2023-11-21 18:40:22,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:40:22 ImpRootNode [2023-11-21 18:40:22,800 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:40:22,800 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:40:22,800 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:40:22,801 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:40:22,801 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:40:20" (3/4) ... [2023-11-21 18:40:22,803 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:40:22,805 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:40:22,806 INFO L158 Benchmark]: Toolchain (without parser) took 4581.34ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 52.2MB in the beginning and 53.0MB in the end (delta: -792.0kB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-11-21 18:40:22,806 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 79.7MB. Free memory was 55.4MB in the beginning and 55.4MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:22,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1596.50ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 51.9MB in the beginning and 50.6MB in the end (delta: 1.4MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2023-11-21 18:40:22,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.09ms. Allocated memory is still 104.9MB. Free memory was 50.6MB in the beginning and 75.7MB in the end (delta: -25.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-21 18:40:22,809 INFO L158 Benchmark]: Boogie Preprocessor took 60.06ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:40:22,809 INFO L158 Benchmark]: RCFGBuilder took 606.24ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 55.1MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 18:40:22,810 INFO L158 Benchmark]: CodeCheck took 2176.46ms. Allocated memory is still 104.9MB. Free memory was 55.1MB in the beginning and 53.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2023-11-21 18:40:22,811 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 104.9MB. Free memory was 53.6MB in the beginning and 53.0MB in the end (delta: 658.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:40:22,815 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 94 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 395 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 2 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_add_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 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, i=0] [L1553] COND TRUE i < 1 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1553] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) [L1567] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1567] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1570] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 79.7MB. Free memory was 55.4MB in the beginning and 55.4MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1596.50ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 51.9MB in the beginning and 50.6MB in the end (delta: 1.4MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.09ms. Allocated memory is still 104.9MB. Free memory was 50.6MB in the beginning and 75.7MB in the end (delta: -25.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.06ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.24ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 55.1MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2176.46ms. Allocated memory is still 104.9MB. Free memory was 55.1MB in the beginning and 53.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 104.9MB. Free memory was 53.6MB in the beginning and 53.0MB in the end (delta: 658.8kB). 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 18:40:22,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a27fd2e-f61c-460d-a5c5-bc1209a51b33/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