./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_44_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_44_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC --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 134aac8861f2c5bf04212e2f21cf253e9f2237d8b16bed0dc3f4961f50ff1980 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 19:55:24,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 19:55:24,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 19:55:24,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 19:55:24,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 19:55:24,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 19:55:24,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 19:55:24,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 19:55:24,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 19:55:24,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 19:55:24,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 19:55:24,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 19:55:24,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 19:55:24,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 19:55:24,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 19:55:24,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 19:55:24,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 19:55:24,431 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 19:55:24,432 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 19:55:24,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 19:55:24,449 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 19:55:24,451 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 19:55:24,451 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 19:55:24,452 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 19:55:24,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 19:55:24,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:55:24,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 19:55:24,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 19:55:24,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 19:55:24,455 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 19:55:24,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 19:55:24,456 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 19:55:24,457 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_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134aac8861f2c5bf04212e2f21cf253e9f2237d8b16bed0dc3f4961f50ff1980 [2023-11-23 19:55:24,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 19:55:24,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 19:55:24,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 19:55:24,805 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 19:55:24,806 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 19:55:24,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_44_good.i [2023-11-23 19:55:27,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 19:55:28,333 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 19:55:28,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_44_good.i [2023-11-23 19:55:28,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/data/1cb4f7c5d/d92f6d186b9a42b4a1bc660efe03e761/FLAG83985b223 [2023-11-23 19:55:28,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/data/1cb4f7c5d/d92f6d186b9a42b4a1bc660efe03e761 [2023-11-23 19:55:28,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 19:55:28,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 19:55:28,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 19:55:28,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 19:55:28,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 19:55:28,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:55:28" (1/1) ... [2023-11-23 19:55:28,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecd071c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:28, skipping insertion in model container [2023-11-23 19:55:28,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:55:28" (1/1) ... [2023-11-23 19:55:28,480 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 19:55:28,918 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 19:55:29,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:55:29,485 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 19:55:29,522 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 19:55:29,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:55:29,800 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:29,800 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:29,801 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:29,801 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:29,801 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:29,801 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:29,808 INFO L206 MainTranslator]: Completed translation [2023-11-23 19:55:29,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29 WrapperNode [2023-11-23 19:55:29,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 19:55:29,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 19:55:29,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 19:55:29,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 19:55:29,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,887 INFO L138 Inliner]: procedures = 504, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 65 [2023-11-23 19:55:29,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 19:55:29,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 19:55:29,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 19:55:29,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 19:55:29,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,920 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 19:55:29,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 19:55:29,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 19:55:29,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 19:55:29,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:29" (1/1) ... [2023-11-23 19:55:29,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:55:29,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 19:55:30,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 19:55:30,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 19:55:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 19:55:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 19:55:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 19:55:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 19:55:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 19:55:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 19:55:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 19:55:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-23 19:55:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-23 19:55:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 19:55:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 19:55:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 19:55:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 19:55:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 19:55:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 19:55:30,205 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 19:55:30,207 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 19:55:30,345 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 19:55:30,380 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 19:55:30,380 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 19:55:30,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:55:30 BoogieIcfgContainer [2023-11-23 19:55:30,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 19:55:30,383 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 19:55:30,383 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 19:55:30,393 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 19:55:30,393 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:55:30" (1/1) ... [2023-11-23 19:55:30,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 19:55:30,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2023-11-23 19:55:30,460 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-11-23 19:55:30,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 19:55:30,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:30,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:55:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:55:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 43 transitions. [2023-11-23 19:55:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2023-11-23 19:55:31,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 19:55:31,025 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:31,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:55:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:55:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:31,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 42 transitions. [2023-11-23 19:55:31,154 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-11-23 19:55:31,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 19:55:31,155 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:31,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:55:31,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:55:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 39 states and 48 transitions. [2023-11-23 19:55:31,688 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2023-11-23 19:55:31,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 19:55:31,691 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:31,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:55:31,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:55:32,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:32,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 51 transitions. [2023-11-23 19:55:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2023-11-23 19:55:32,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 19:55:32,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:55:32,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:55:33,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 47 transitions. [2023-11-23 19:55:33,048 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-11-23 19:55:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 19:55:33,050 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:33,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:55:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:55:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 46 transitions. [2023-11-23 19:55:34,136 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-23 19:55:34,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 19:55:34,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:34,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:55:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:55:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 45 transitions. [2023-11-23 19:55:34,541 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-11-23 19:55:34,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 19:55:34,543 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-23 19:55:34,562 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 19:55:34,694 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 19:55:34,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 07:55:34 ImpRootNode [2023-11-23 19:55:34,699 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 19:55:34,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 19:55:34,700 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 19:55:34,700 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 19:55:34,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:55:30" (3/4) ... [2023-11-23 19:55:34,702 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 19:55:34,705 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-23 19:55:34,705 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-23 19:55:34,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~int~TO~VOID [2023-11-23 19:55:34,710 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-23 19:55:34,711 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-23 19:55:34,711 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 19:55:34,711 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 19:55:34,825 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 19:55:34,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 19:55:34,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 19:55:34,830 INFO L158 Benchmark]: Toolchain (without parser) took 6440.89ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 149.9MB in the beginning and 166.0MB in the end (delta: -16.1MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-11-23 19:55:34,832 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 98.5MB in the beginning and 98.4MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 19:55:34,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1418.24ms. Allocated memory is still 182.5MB. Free memory was 149.9MB in the beginning and 86.1MB in the end (delta: 63.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-23 19:55:34,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.12ms. Allocated memory is still 182.5MB. Free memory was 86.1MB in the beginning and 83.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 19:55:34,833 INFO L158 Benchmark]: Boogie Preprocessor took 41.48ms. Allocated memory is still 182.5MB. Free memory was 83.2MB in the beginning and 149.8MB in the end (delta: -66.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-11-23 19:55:34,834 INFO L158 Benchmark]: RCFGBuilder took 451.97ms. Allocated memory is still 182.5MB. Free memory was 149.8MB in the beginning and 134.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 19:55:34,834 INFO L158 Benchmark]: CodeCheck took 4316.20ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 134.1MB in the beginning and 171.2MB in the end (delta: -37.2MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2023-11-23 19:55:34,835 INFO L158 Benchmark]: Witness Printer took 128.34ms. Allocated memory is still 220.2MB. Free memory was 171.2MB in the beginning and 166.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 19:55:34,839 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 4 procedures, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 174 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 174 mSolverCounterUnsat, 149 mSDtfsCounter, 471 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 848 GetRequests, 769 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 9/9 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: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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: 1593]: 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 was 98.5MB in the beginning and 98.4MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1418.24ms. Allocated memory is still 182.5MB. Free memory was 149.9MB in the beginning and 86.1MB in the end (delta: 63.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.12ms. Allocated memory is still 182.5MB. Free memory was 86.1MB in the beginning and 83.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.48ms. Allocated memory is still 182.5MB. Free memory was 83.2MB in the beginning and 149.8MB in the end (delta: -66.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * RCFGBuilder took 451.97ms. Allocated memory is still 182.5MB. Free memory was 149.8MB in the beginning and 134.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 4316.20ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 134.1MB in the beginning and 171.2MB in the end (delta: -37.2MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 128.34ms. Allocated memory is still 220.2MB. Free memory was 171.2MB in the beginning and 166.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 19:55:34,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eeea786-14c8-47d9-b980-051c7ab42d3d/bin/ukojak-verify-1t5iHCbJaC/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