./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV --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 b43468da60ff5fce2aa9e5ce5cae0002bb858d701a95629c3b5ac51615f774f7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:49:56,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:49:56,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:49:56,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:49:56,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:49:56,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:49:56,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:49:56,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:49:56,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:49:56,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:49:56,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:49:56,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:49:56,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:49:56,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:49:56,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:49:56,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:49:56,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:49:56,203 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:49:56,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:49:56,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:49:56,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:49:56,217 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:49:56,217 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:49:56,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:49:56,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:49:56,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:49:56,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:49:56,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:49:56,221 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:49:56,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:49:56,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:49:56,223 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_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b43468da60ff5fce2aa9e5ce5cae0002bb858d701a95629c3b5ac51615f774f7 [2023-11-11 23:49:56,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:49:56,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:49:56,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:49:56,590 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:49:56,591 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:49:56,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i [2023-11-11 23:49:59,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:50:00,322 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:50:00,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i [2023-11-11 23:50:00,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/data/d3f403c1c/73bec63a8ccb404d9242847ac3d2ad0c/FLAG9c08636d9 [2023-11-11 23:50:00,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/data/d3f403c1c/73bec63a8ccb404d9242847ac3d2ad0c [2023-11-11 23:50:00,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:50:00,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:50:00,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:00,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:50:00,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:50:00,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:00" (1/1) ... [2023-11-11 23:50:00,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c81a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:00, skipping insertion in model container [2023-11-11 23:50:00,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:00" (1/1) ... [2023-11-11 23:50:00,458 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:50:00,892 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:50:01,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:01,479 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:50:01,529 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:50:01,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:01,828 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:01,829 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:01,829 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:01,829 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:01,830 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:01,830 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:01,838 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:50:01,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01 WrapperNode [2023-11-11 23:50:01,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:01,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:01,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:50:01,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:50:01,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,931 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-11-11 23:50:01,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:01,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:50:01,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:50:01,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:50:01,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,953 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:50:01,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:50:01,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:50:01,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:50:01,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:01" (1/1) ... [2023-11-11 23:50:01,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:02,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:50:02,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:50:02,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:50:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-11 23:50:02,062 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:50:02,063 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:50:02,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:50:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-11 23:50:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:50:02,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:50:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:50:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:50:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:50:02,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:50:02,236 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:50:02,238 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:50:02,380 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:50:02,419 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:50:02,419 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-11 23:50:02,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:02 BoogieIcfgContainer [2023-11-11 23:50:02,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:50:02,423 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:50:02,423 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:50:02,431 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:50:02,432 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:02" (1/1) ... [2023-11-11 23:50:02,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:50:02,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:02,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-11 23:50:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-11 23:50:02,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:50:02,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:02,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:02,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2023-11-11 23:50:02,702 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-11 23:50:02,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:50:02,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:02,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:50:02,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:50:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:50:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:50:02,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:50:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:50:02,988 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-11 23:50:03,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:50:03 ImpRootNode [2023-11-11 23:50:03,037 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:50:03,038 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:50:03,038 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:50:03,039 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:50:03,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:02" (3/4) ... [2023-11-11 23:50:03,044 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-11 23:50:03,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:50:03,049 INFO L158 Benchmark]: Toolchain (without parser) took 2673.00ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 91.8MB in the beginning and 73.3MB in the end (delta: 18.5MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2023-11-11 23:50:03,049 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:50:03,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1461.63ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 91.8MB in the beginning and 116.0MB in the end (delta: -24.3MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2023-11-11 23:50:03,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.84ms. Allocated memory is still 163.6MB. Free memory was 116.0MB in the beginning and 113.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:50:03,052 INFO L158 Benchmark]: Boogie Preprocessor took 48.76ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 111.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:50:03,053 INFO L158 Benchmark]: RCFGBuilder took 439.95ms. Allocated memory is still 163.6MB. Free memory was 111.9MB in the beginning and 97.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-11 23:50:03,058 INFO L158 Benchmark]: CodeCheck took 614.43ms. Allocated memory is still 163.6MB. Free memory was 97.2MB in the beginning and 74.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-11 23:50:03,059 INFO L158 Benchmark]: Witness Printer took 9.16ms. Allocated memory is still 163.6MB. Free memory was 74.1MB in the beginning and 73.3MB in the end (delta: 872.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:50:03,064 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [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)=18, argc=18, argv={13:27}, argv={13:27}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_predec_02_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [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] [L1569] --data VAL [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 0.37ms. Allocated memory is still 125.8MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1461.63ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 91.8MB in the beginning and 116.0MB in the end (delta: -24.3MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.84ms. Allocated memory is still 163.6MB. Free memory was 116.0MB in the beginning and 113.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.76ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 111.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.95ms. Allocated memory is still 163.6MB. Free memory was 111.9MB in the beginning and 97.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 614.43ms. Allocated memory is still 163.6MB. Free memory was 97.2MB in the beginning and 74.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 9.16ms. Allocated memory is still 163.6MB. Free memory was 74.1MB in the beginning and 73.3MB in the end (delta: 872.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-11 23:50:03,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/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_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV --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 b43468da60ff5fce2aa9e5ce5cae0002bb858d701a95629c3b5ac51615f774f7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:50:06,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:50:06,146 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-11 23:50:06,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:50:06,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:50:06,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:50:06,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:50:06,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:50:06,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:50:06,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:50:06,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:50:06,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:50:06,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:50:06,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:50:06,214 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-11 23:50:06,214 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-11 23:50:06,215 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:50:06,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-11 23:50:06,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:50:06,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:50:06,218 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:50:06,219 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:50:06,219 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:50:06,220 INFO L153 SettingsManager]: * Theory for external solver=AUFBV [2023-11-11 23:50:06,220 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-11 23:50:06,221 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-11 23:50:06,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:50:06,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:06,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:50:06,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:50:06,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:50:06,225 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-11 23:50:06,225 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-11 23:50:06,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:50:06,226 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-11 23:50:06,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-11 23:50:06,226 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_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b43468da60ff5fce2aa9e5ce5cae0002bb858d701a95629c3b5ac51615f774f7 [2023-11-11 23:50:06,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:50:06,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:50:06,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:50:06,713 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:50:06,714 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:50:06,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i [2023-11-11 23:50:10,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:50:10,532 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:50:10,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_02_bad.i [2023-11-11 23:50:10,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/data/997426733/2880a85dd6264d90b321d82777fcc1bf/FLAG06d348d74 [2023-11-11 23:50:10,589 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/data/997426733/2880a85dd6264d90b321d82777fcc1bf [2023-11-11 23:50:10,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:50:10,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:50:10,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:10,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:50:10,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:50:10,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:10" (1/1) ... [2023-11-11 23:50:10,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff9ac72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:10, skipping insertion in model container [2023-11-11 23:50:10,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:10" (1/1) ... [2023-11-11 23:50:10,696 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:50:11,218 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:50:11,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:11,807 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:50:11,832 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:50:11,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:12,101 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:12,102 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:12,102 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:12,102 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:12,102 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:12,102 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:50:12,111 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:50:12,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12 WrapperNode [2023-11-11 23:50:12,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:12,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:12,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:50:12,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:50:12,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,216 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-11 23:50:12,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:12,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:50:12,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:50:12,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:50:12,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:50:12,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:50:12,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:50:12,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:50:12,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:12,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:50:12,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:50:12,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:50:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-11 23:50:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:50:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:50:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:50:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-11 23:50:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:50:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:50:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:50:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:50:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:50:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-11 23:50:12,596 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:50:12,599 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:50:12,785 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:50:12,870 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:50:12,871 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-11 23:50:12,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:12 BoogieIcfgContainer [2023-11-11 23:50:12,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:50:12,876 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:50:12,876 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:50:12,887 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:50:12,887 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:12" (1/1) ... [2023-11-11 23:50:12,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:50:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-11 23:50:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-11 23:50:12,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:50:12,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:12,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-11 23:50:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/cvc4 [2023-11-11 23:50:12,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-11 23:50:12,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-11 23:50:13,045 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort RoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:228) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:228) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:159) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:196) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferAllSymbols(SmtFunctionsAndAxioms.java:156) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.CfgSmtToolkit.createFreshManagedScript(CfgSmtToolkit.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:440) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-11 23:50:13,049 INFO L158 Benchmark]: Toolchain (without parser) took 2451.27ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 40.2MB in the beginning and 49.2MB in the end (delta: -9.0MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2023-11-11 23:50:13,050 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 67.1MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:50:13,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1511.63ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 40.1MB in the beginning and 53.3MB in the end (delta: -13.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-11-11 23:50:13,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.92ms. Allocated memory is still 86.0MB. Free memory was 53.3MB in the beginning and 50.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:50:13,052 INFO L158 Benchmark]: Boogie Preprocessor took 71.90ms. Allocated memory is still 86.0MB. Free memory was 50.1MB in the beginning and 48.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:50:13,053 INFO L158 Benchmark]: RCFGBuilder took 583.53ms. Allocated memory is still 86.0MB. Free memory was 48.0MB in the beginning and 55.0MB in the end (delta: -7.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-11 23:50:13,053 INFO L158 Benchmark]: CodeCheck took 171.99ms. Allocated memory is still 86.0MB. Free memory was 55.0MB in the beginning and 49.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-11 23:50:13,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: SMTLIBException: Sort RoundingMode not declared de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: SMTLIBException: Sort RoundingMode not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:385) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 67.1MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1511.63ms. Allocated memory was 67.1MB in the beginning and 86.0MB in the end (delta: 18.9MB). Free memory was 40.1MB in the beginning and 53.3MB in the end (delta: -13.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.92ms. Allocated memory is still 86.0MB. Free memory was 53.3MB in the beginning and 50.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.90ms. Allocated memory is still 86.0MB. Free memory was 50.1MB in the beginning and 48.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.53ms. Allocated memory is still 86.0MB. Free memory was 48.0MB in the beginning and 55.0MB in the end (delta: -7.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * CodeCheck took 171.99ms. Allocated memory is still 86.0MB. Free memory was 55.0MB in the beginning and 49.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-11 23:50:13,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-11 23:50:13,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f94d8e-dfa3-4aad-93ac-fbdf4b3dc8a4/bin/ukojak-verify-0OAaufAVZV/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: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort RoundingMode not declared