./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL --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 f797f7560f2d6968129c886a722f9d52cd41e157726d25a985e72ae8caba1f76 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:18:21,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:18:21,797 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:18:21,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:18:21,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:18:21,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:18:21,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:18:21,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:18:21,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:18:21,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:18:21,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:18:21,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:18:21,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:18:21,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:18:21,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:18:21,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:18:21,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:18:21,863 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:18:21,864 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:18:21,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:18:21,865 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:18:21,866 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:18:21,866 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:18:21,867 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:18:21,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:18:21,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:18:21,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:18:21,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:18:21,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:18:21,872 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:18:21,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:18:21,874 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:18:21,874 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_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f797f7560f2d6968129c886a722f9d52cd41e157726d25a985e72ae8caba1f76 [2023-11-19 03:18:22,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:18:22,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:18:22,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:18:22,238 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:18:22,238 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:18:22,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_22_good.i [2023-11-19 03:18:25,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:18:25,807 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:18:25,808 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_22_good.i [2023-11-19 03:18:25,837 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/data/e831d5668/348f8b1df3bc4a5bb9a78a7403ebc789/FLAG8efc00cbb [2023-11-19 03:18:25,855 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/data/e831d5668/348f8b1df3bc4a5bb9a78a7403ebc789 [2023-11-19 03:18:25,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:18:25,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:18:25,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:18:25,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:18:25,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:18:25,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:25" (1/1) ... [2023-11-19 03:18:25,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580b3a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:25, skipping insertion in model container [2023-11-19 03:18:25,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:25" (1/1) ... [2023-11-19 03:18:25,977 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:18:26,432 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:18:27,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:18:27,257 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:18:27,291 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:18:27,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:18:27,640 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:18:27,640 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:18:27,640 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:18:27,641 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:18:27,641 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:18:27,641 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:18:27,649 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:18:27,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27 WrapperNode [2023-11-19 03:18:27,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:18:27,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:18:27,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:18:27,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:18:27,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,736 INFO L138 Inliner]: procedures = 506, calls = 86, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 117 [2023-11-19 03:18:27,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:18:27,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:18:27,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:18:27,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:18:27,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:18:27,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:18:27,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:18:27,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:18:27,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:27" (1/1) ... [2023-11-19 03:18:27,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:18:27,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:18:27,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:18:27,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:18:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-19 03:18:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-19 03:18:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 03:18:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:18:27,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:18:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:18:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 03:18:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:18:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:18:27,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:18:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:18:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:18:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:18:28,035 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:18:28,038 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:18:28,282 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:18:28,351 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:18:28,354 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:18:28,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:28 BoogieIcfgContainer [2023-11-19 03:18:28,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:18:28,396 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:18:28,396 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:18:28,407 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:18:28,408 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:28" (1/1) ... [2023-11-19 03:18:28,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:18:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 59 transitions. [2023-11-19 03:18:28,496 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2023-11-19 03:18:28,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:18:28,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:28,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:18:29,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:29,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 65 transitions. [2023-11-19 03:18:29,130 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-19 03:18:29,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:18:29,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:29,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:18:29,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 48 states and 64 transitions. [2023-11-19 03:18:29,297 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2023-11-19 03:18:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:18:29,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:29,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:18:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 43 states and 57 transitions. [2023-11-19 03:18:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2023-11-19 03:18:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:18:29,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:29,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:18:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 42 states and 54 transitions. [2023-11-19 03:18:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2023-11-19 03:18:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 03:18:29,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:29,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:18:29,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:29,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 60 transitions. [2023-11-19 03:18:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2023-11-19 03:18:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:18:29,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:29,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:18:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 46 states and 59 transitions. [2023-11-19 03:18:30,249 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2023-11-19 03:18:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:18:30,252 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:30,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:18:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:30,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 45 states and 58 transitions. [2023-11-19 03:18:30,445 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2023-11-19 03:18:30,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:18:30,448 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:30,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:18:30,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:30,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 51 transitions. [2023-11-19 03:18:30,736 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2023-11-19 03:18:30,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:18:30,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:30,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:30,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:18:30,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 39 states and 50 transitions. [2023-11-19 03:18:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2023-11-19 03:18:30,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:18:30,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:30,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:18:30,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:30,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 38 states and 49 transitions. [2023-11-19 03:18:30,992 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2023-11-19 03:18:30,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:18:30,993 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-19 03:18:31,002 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-19 03:18:31,101 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:18:31,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:18:31 ImpRootNode [2023-11-19 03:18:31,107 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:18:31,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:18:31,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:18:31,108 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:18:31,108 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:28" (3/4) ... [2023-11-19 03:18:31,113 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:18:31,116 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-19 03:18:31,116 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-19 03:18:31,125 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-19 03:18:31,125 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-19 03:18:31,126 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 03:18:31,126 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:18:31,127 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:18:31,256 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:18:31,257 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:18:31,257 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:18:31,258 INFO L158 Benchmark]: Toolchain (without parser) took 5394.71ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 89.8MB in the beginning and 91.1MB in the end (delta: -1.3MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2023-11-19 03:18:31,258 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 92.3MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:18:31,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1783.77ms. Allocated memory is still 136.3MB. Free memory was 89.5MB in the beginning and 73.8MB in the end (delta: 15.8MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2023-11-19 03:18:31,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.45ms. Allocated memory is still 136.3MB. Free memory was 73.8MB in the beginning and 70.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:18:31,259 INFO L158 Benchmark]: Boogie Preprocessor took 31.76ms. Allocated memory is still 136.3MB. Free memory was 70.5MB in the beginning and 68.9MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:18:31,260 INFO L158 Benchmark]: RCFGBuilder took 625.33ms. Allocated memory is still 136.3MB. Free memory was 68.9MB in the beginning and 106.1MB in the end (delta: -37.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-11-19 03:18:31,260 INFO L158 Benchmark]: CodeCheck took 2711.44ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 106.1MB in the beginning and 97.3MB in the end (delta: 8.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-19 03:18:31,261 INFO L158 Benchmark]: Witness Printer took 149.45ms. Allocated memory is still 188.7MB. Free memory was 97.3MB in the beginning and 91.1MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 03:18:31,263 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, 45 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 629 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 471 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 177 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 177 mSolverCounterUnsat, 381 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1379 GetRequests, 1333 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 28/28 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: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1641]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1641]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - 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 0.39ms. Allocated memory is still 92.3MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1783.77ms. Allocated memory is still 136.3MB. Free memory was 89.5MB in the beginning and 73.8MB in the end (delta: 15.8MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.45ms. Allocated memory is still 136.3MB. Free memory was 73.8MB in the beginning and 70.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.76ms. Allocated memory is still 136.3MB. Free memory was 70.5MB in the beginning and 68.9MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 625.33ms. Allocated memory is still 136.3MB. Free memory was 68.9MB in the beginning and 106.1MB in the end (delta: -37.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * CodeCheck took 2711.44ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 106.1MB in the beginning and 97.3MB in the end (delta: 8.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 149.45ms. Allocated memory is still 188.7MB. Free memory was 97.3MB in the beginning and 91.1MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:18:31,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74fe0b2e-c9b1-4806-9245-27b27c3247e7/bin/ukojak-verify-G8NBE6pJGL/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