./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_16_good.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_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/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_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_16_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/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_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/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 cdef4dabc2a07c48767c3ef837fdb1d27f9ca699dc0c29dd001c26ae7f11fe84 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:49:33,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:49:33,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-11 23:49:33,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:49:33,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:49:33,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:49:33,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:49:33,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:49:33,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:49:33,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:49:33,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:49:33,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:49:33,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:49:33,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:49:33,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:49:33,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:49:33,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:49:33,501 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-11 23:49:33,501 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:49:33,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:49:33,502 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:49:33,503 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:49:33,504 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:49:33,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:49:33,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:49:33,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:49:33,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:49:33,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:49:33,507 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:49:33,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:49:33,509 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:49:33,509 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_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdef4dabc2a07c48767c3ef837fdb1d27f9ca699dc0c29dd001c26ae7f11fe84 [2023-11-11 23:49:33,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:49:33,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:49:33,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:49:33,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:49:33,808 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:49:33,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_16_good.i [2023-11-11 23:49:37,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:49:37,588 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:49:37,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_16_good.i [2023-11-11 23:49:37,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/data/b8aabf42f/c57a88c90a3944949e1a14715e9b8907/FLAG758e46a3f [2023-11-11 23:49:37,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/data/b8aabf42f/c57a88c90a3944949e1a14715e9b8907 [2023-11-11 23:49:37,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:49:37,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:49:37,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:49:37,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:49:37,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:49:37,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:49:37" (1/1) ... [2023-11-11 23:49:37,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170bf5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:37, skipping insertion in model container [2023-11-11 23:49:37,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:49:37" (1/1) ... [2023-11-11 23:49:37,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:49:38,186 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:49:38,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:49:38,845 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:49:38,900 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-11 23:49:39,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:49:39,191 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:39,191 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:39,191 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:39,191 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:39,192 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:39,192 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-11 23:49:39,200 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:49:39,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39 WrapperNode [2023-11-11 23:49:39,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:49:39,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:49:39,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:49:39,204 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:49:39,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,301 INFO L138 Inliner]: procedures = 502, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2023-11-11 23:49:39,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:49:39,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:49:39,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:49:39,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:49:39,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,335 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:49:39,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:49:39,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:49:39,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:49:39,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:49:39,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:49:39,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:49:39,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:49:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-11 23:49:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-11 23:49:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-11 23:49:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-11 23:49:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-11 23:49:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:49:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-11 23:49:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:49:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:49:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:49:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:49:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-11 23:49:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:49:39,665 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:49:39,668 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:49:39,822 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:49:39,863 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:49:39,863 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-11 23:49:39,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:49:39 BoogieIcfgContainer [2023-11-11 23:49:39,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:49:39,867 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:49:39,867 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:49:39,879 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:49:39,879 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:49:39" (1/1) ... [2023-11-11 23:49:39,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:49:39,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:39,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2023-11-11 23:49:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2023-11-11 23:49:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:49:39,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:39,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:40,178 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 23:49:40,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:40,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2023-11-11 23:49:40,204 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-11 23:49:40,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:49:40,205 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:40,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:40,440 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 23:49:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 36 states and 43 transitions. [2023-11-11 23:49:40,503 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-11-11 23:49:40,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:49:40,504 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:40,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:40,640 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 23:49:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 35 states and 42 transitions. [2023-11-11 23:49:40,727 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-11 23:49:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:49:40,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:40,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:49:40,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 36 transitions. [2023-11-11 23:49:40,911 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2023-11-11 23:49:40,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:49:40,912 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:49:41,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:41,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 34 transitions. [2023-11-11 23:49:41,019 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-11 23:49:41,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-11 23:49:41,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:49:41,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:49:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:49:41,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:49:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:49:41,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 33 transitions. [2023-11-11 23:49:41,130 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-11 23:49:41,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-11 23:49:41,132 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-11 23:49:41,141 INFO L753 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-11 23:49:41,207 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-11 23:49:41,216 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:49:41,217 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-11 23:49:41,220 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-11 23:49:41,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:49:41 ImpRootNode [2023-11-11 23:49:41,221 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:49:41,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:49:41,222 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:49:41,222 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:49:41,222 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:49:39" (3/4) ... [2023-11-11 23:49:41,225 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-11 23:49:41,228 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-11 23:49:41,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-11 23:49:41,237 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-11 23:49:41,237 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-11 23:49:41,237 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-11 23:49:41,238 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-11 23:49:41,358 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:49:41,359 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-11 23:49:41,359 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:49:41,360 INFO L158 Benchmark]: Toolchain (without parser) took 3704.30ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 76.6MB in the beginning and 81.6MB in the end (delta: -5.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-11-11 23:49:41,361 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:49:41,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1542.38ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 76.2MB in the beginning and 98.0MB in the end (delta: -21.8MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2023-11-11 23:49:41,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.05ms. Allocated memory is still 169.9MB. Free memory was 98.0MB in the beginning and 94.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:49:41,362 INFO L158 Benchmark]: Boogie Preprocessor took 64.07ms. Allocated memory is still 169.9MB. Free memory was 94.9MB in the beginning and 93.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:49:41,363 INFO L158 Benchmark]: RCFGBuilder took 498.98ms. Allocated memory is still 169.9MB. Free memory was 92.6MB in the beginning and 77.0MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-11 23:49:41,363 INFO L158 Benchmark]: CodeCheck took 1353.54ms. Allocated memory is still 169.9MB. Free memory was 77.0MB in the beginning and 86.7MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:49:41,364 INFO L158 Benchmark]: Witness Printer took 138.06ms. Allocated memory is still 169.9MB. Free memory was 86.7MB in the beginning and 81.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:49:41,366 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 3 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 196 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 150 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 544 GetRequests, 530 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 6/6 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 - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1552]: Loop Invariant Derived loop invariant: (data == 0) - InvariantResult [Line: 1567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1590]: Loop Invariant Derived loop invariant: (data == 2) - InvariantResult [Line: 1609]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1542.38ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 76.2MB in the beginning and 98.0MB in the end (delta: -21.8MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.05ms. Allocated memory is still 169.9MB. Free memory was 98.0MB in the beginning and 94.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.07ms. Allocated memory is still 169.9MB. Free memory was 94.9MB in the beginning and 93.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.98ms. Allocated memory is still 169.9MB. Free memory was 92.6MB in the beginning and 77.0MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1353.54ms. Allocated memory is still 169.9MB. Free memory was 77.0MB in the beginning and 86.7MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 138.06ms. Allocated memory is still 169.9MB. Free memory was 86.7MB in the beginning and 81.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-11 23:49:41,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7d94e9d-16de-4d1a-86b0-71c17cb40eed/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: TRUE