./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3 --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 32bit --witnessprinter.graph.data.programhash 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:16:54,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:16:54,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-24 18:16:54,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:16:54,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:16:54,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:16:54,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:16:54,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:16:54,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:16:54,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:16:54,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:16:54,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:16:54,354 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 18:16:54,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:16:54,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 18:16:54,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:16:54,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:16:54,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:16:54,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:16:54,355 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 18:16:54,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:16:54,356 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 18:16:54,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:16:54,356 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:16:54,356 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:16:54,356 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:16:54,357 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:16:54,357 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:16:54,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:16:54,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:16:54,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:16:54,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:16:54,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:16:54,358 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:16:54,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:16:54,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c883b81b24ce5a721aa9a1ff13aef8a0d532ba87d9e130e470a0b88a1f8e93e [2024-11-24 18:16:54,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:16:54,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:16:54,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:16:54,801 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:16:54,801 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:16:54,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2024-11-24 18:16:58,436 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/data/9b448314a/fe8a3a911861440f9ef27530ef22d68c/FLAG53467b09c [2024-11-24 18:16:58,832 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:16:58,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2024-11-24 18:16:58,854 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/data/9b448314a/fe8a3a911861440f9ef27530ef22d68c/FLAG53467b09c [2024-11-24 18:16:58,870 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/data/9b448314a/fe8a3a911861440f9ef27530ef22d68c [2024-11-24 18:16:58,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:16:58,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:16:58,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:16:58,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:16:58,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:16:58,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:16:58" (1/1) ... [2024-11-24 18:16:58,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d24fc17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:58, skipping insertion in model container [2024-11-24 18:16:58,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:16:58" (1/1) ... [2024-11-24 18:16:58,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:16:59,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:16:59,363 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:16:59,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:16:59,446 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:16:59,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59 WrapperNode [2024-11-24 18:16:59,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:16:59,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:16:59,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:16:59,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:16:59,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,487 INFO L138 Inliner]: procedures = 168, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2024-11-24 18:16:59,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:16:59,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:16:59,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:16:59,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:16:59,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,504 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:16:59,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:16:59,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:16:59,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:16:59,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:16:59" (1/1) ... [2024-11-24 18:16:59,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:16:59,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:16:59,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:16:59,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:16:59,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 18:16:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2024-11-24 18:16:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2024-11-24 18:16:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 18:16:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:16:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-24 18:16:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 18:16:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-24 18:16:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:16:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:16:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:16:59,728 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:16:59,731 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:16:59,889 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-24 18:16:59,889 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:17:00,006 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:17:00,006 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 18:17:00,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:17:00 BoogieIcfgContainer [2024-11-24 18:17:00,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:17:00,007 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:17:00,008 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:17:00,018 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:17:00,019 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:17:00" (1/1) ... [2024-11-24 18:17:00,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:17:00,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-11-24 18:17:00,083 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-24 18:17:00,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 18:17:00,087 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:00,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:17:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:00,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2024-11-24 18:17:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-11-24 18:17:00,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 18:17:00,515 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:00,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:17:00,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:00,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2024-11-24 18:17:00,638 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-11-24 18:17:00,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 18:17:00,639 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:00,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:00,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:17:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:00,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2024-11-24 18:17:00,767 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-24 18:17:00,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 18:17:00,767 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:00,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:17:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:01,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-11-24 18:17:01,075 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-24 18:17:01,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-24 18:17:01,076 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:01,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 18:17:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:01,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2024-11-24 18:17:01,384 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2024-11-24 18:17:01,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-24 18:17:01,385 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:01,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:17:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 31 states and 42 transitions. [2024-11-24 18:17:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2024-11-24 18:17:01,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 18:17:01,531 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:01,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:01,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 18:17:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-11-24 18:17:01,640 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-24 18:17:01,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-24 18:17:01,641 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:17:01,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:17:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:17:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:17:01,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:17:01,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-11-24 18:17:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-24 18:17:01,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 18:17:01,862 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-24 18:17:01,878 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-24 18:17:02,005 INFO L77 FloydHoareUtils]: At program point L692-3(line 692) the Hoare annotation is: (or (= |parse_input_#t~post6#1| 0) (and (<= 1 |parse_input_#t~post6#1|) (<= |parse_input_#t~post6#1| 1))) [2024-11-24 18:17:02,005 INFO L77 FloydHoareUtils]: At program point L692-4(line 692) the Hoare annotation is: (or (= |parse_input_#t~post6#1| 0) (and (<= 1 |parse_input_#t~post6#1|) (<= |parse_input_#t~post6#1| 1))) [2024-11-24 18:17:02,005 INFO L77 FloydHoareUtils]: At program point L692-5(lines 692 699) the Hoare annotation is: (not (and (not (= |parse_input_~i~0#1| 0)) (< |parse_input_~i~0#1| 1))) [2024-11-24 18:17:02,005 INFO L77 FloydHoareUtils]: At program point parse_inputFINAL(lines 691 700) the Hoare annotation is: true [2024-11-24 18:17:02,006 INFO L75 FloydHoareUtils]: For program point parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 692) no Hoare annotation was computed. [2024-11-24 18:17:02,006 INFO L77 FloydHoareUtils]: At program point L693(lines 693 698) the Hoare annotation is: (or (and (<= |parse_input_~i~0#1| 1) (<= 1 |parse_input_~i~0#1|)) (= |parse_input_~i~0#1| 0)) [2024-11-24 18:17:02,006 INFO L77 FloydHoareUtils]: At program point L693-2(lines 693 698) the Hoare annotation is: (or (and (<= |parse_input_~i~0#1| 1) (<= 1 |parse_input_~i~0#1|)) (= |parse_input_~i~0#1| 0)) [2024-11-24 18:17:02,006 INFO L77 FloydHoareUtils]: At program point parse_inputEXIT(lines 691 700) the Hoare annotation is: true [2024-11-24 18:17:02,006 INFO L75 FloydHoareUtils]: For program point parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 692) no Hoare annotation was computed. [2024-11-24 18:17:02,006 INFO L77 FloydHoareUtils]: At program point L694(lines 694 697) the Hoare annotation is: (or (and (<= |parse_input_~i~0#1| 1) (<= 1 |parse_input_~i~0#1|)) (= |parse_input_~i~0#1| 0)) [2024-11-24 18:17:02,006 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 691 700) the Hoare annotation is: true [2024-11-24 18:17:02,006 INFO L77 FloydHoareUtils]: At program point L722-1(line 722) the Hoare annotation is: true [2024-11-24 18:17:02,007 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-24 18:17:02,007 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-24 18:17:02,007 INFO L77 FloydHoareUtils]: At program point L724(line 724) the Hoare annotation is: true [2024-11-24 18:17:02,007 INFO L77 FloydHoareUtils]: At program point L723(line 723) the Hoare annotation is: true [2024-11-24 18:17:02,007 INFO L77 FloydHoareUtils]: At program point L722(line 722) the Hoare annotation is: true [2024-11-24 18:17:02,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-24 18:17:02,026 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-24 18:17:02,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-24 18:17:02,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_1 [2024-11-24 18:17:02,027 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_2 [2024-11-24 18:17:02,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:17:02 ImpRootNode [2024-11-24 18:17:02,029 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:17:02,029 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:17:02,030 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:17:02,030 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:17:02,030 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:17:00" (3/4) ... [2024-11-24 18:17:02,033 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 18:17:02,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parse_input [2024-11-24 18:17:02,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-24 18:17:02,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-24 18:17:02,041 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-24 18:17:02,041 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-24 18:17:02,041 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 18:17:02,145 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-24 18:17:02,145 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-24 18:17:02,145 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:17:02,146 INFO L158 Benchmark]: Toolchain (without parser) took 3271.94ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 47.5MB in the end (delta: 44.0MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-11-24 18:17:02,147 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:17:02,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.23ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 71.6MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:17:02,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.27ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 69.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:17:02,148 INFO L158 Benchmark]: Boogie Preprocessor took 25.05ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:17:02,148 INFO L158 Benchmark]: RCFGBuilder took 493.04ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 49.5MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:17:02,148 INFO L158 Benchmark]: CodeCheck took 2021.39ms. Allocated memory is still 117.4MB. Free memory was 49.3MB in the beginning and 52.8MB in the end (delta: -3.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2024-11-24 18:17:02,148 INFO L158 Benchmark]: Witness Printer took 116.07ms. Allocated memory is still 117.4MB. Free memory was 52.1MB in the beginning and 47.5MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:17:02,155 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 167 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 391 IncrementalHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 56 mSDtfsCounter, 391 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 723 GetRequests, 681 SyntacticMatches, 20 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 14/31 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, ConComCheckerStatistics: No data available - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 694]: Location Invariant Derived location invariant: (((i <= 1) && (1 <= i)) || (i == 0)) - InvariantResult [Line: 692]: Loop Invariant Derived loop invariant: !((i != 0) && (i < 1)) - ProcedureContractResult [Line: 691]: Procedure Contract for parse_input Derived contract for procedure parse_input. Ensures: ((global == \old(global)) && (commands == \old(commands))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.23ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 71.6MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.27ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 69.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.05ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 493.04ms. Allocated memory is still 117.4MB. Free memory was 68.7MB in the beginning and 49.5MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2021.39ms. Allocated memory is still 117.4MB. Free memory was 49.3MB in the beginning and 52.8MB in the end (delta: -3.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Witness Printer took 116.07ms. Allocated memory is still 117.4MB. Free memory was 52.1MB in the beginning and 47.5MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_2 RESULT: Ultimate proved your program to be correct! [2024-11-24 18:17:02,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bfc13d3-ab2d-4aea-9c8f-109e2fee687b/bin/ukojak-verify-ENZ3QT5qd3/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