./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm --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-826ab2b [2024-11-13 21:06:54,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:06:54,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-13 21:06:54,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:06:54,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:06:54,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:06:54,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:06:54,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:06:54,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:06:54,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:06:54,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:06:54,775 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:06:54,778 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:06:54,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:06:54,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:06:54,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:06:54,778 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:06:54,778 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:06:54,779 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:06:54,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:06:54,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:06:54,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:06:54,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:06:54,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:06:54,779 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:06:54,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:06:54,780 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_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm 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 [2024-11-13 21:06:55,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:06:55,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:06:55,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:06:55,081 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:06:55,081 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:06:55,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i Unable to find full path for "g++" [2024-11-13 21:06:57,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:06:57,418 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:06:57,418 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2024-11-13 21:06:57,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/data/1d081cb66/5d8ee6ee5b4647ed8ada3bdfb56f6343/FLAG4ae7ba77d [2024-11-13 21:06:57,450 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/data/1d081cb66/5d8ee6ee5b4647ed8ada3bdfb56f6343 [2024-11-13 21:06:57,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:06:57,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:06:57,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:06:57,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:06:57,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:06:57,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:06:57" (1/1) ... [2024-11-13 21:06:57,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c137460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:57, skipping insertion in model container [2024-11-13 21:06:57,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:06:57" (1/1) ... [2024-11-13 21:06:57,518 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:06:57,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:06:58,002 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:06:58,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:06:58,105 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:06:58,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58 WrapperNode [2024-11-13 21:06:58,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:06:58,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:06:58,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:06:58,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:06:58,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,156 INFO L138 Inliner]: procedures = 168, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2024-11-13 21:06:58,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:06:58,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:06:58,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:06:58,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:06:58,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:06:58,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:06:58,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:06:58,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:06:58,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:06:58,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:06:58,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:06:58,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2024-11-13 21:06:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:06:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:06:58,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:06:58,370 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:06:58,371 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:06:58,528 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 21:06:58,528 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:06:58,668 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:06:58,669 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 21:06:58,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:06:58 BoogieIcfgContainer [2024-11-13 21:06:58,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:06:58,670 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:06:58,670 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:06:58,681 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:06:58,681 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:06:58" (1/1) ... [2024-11-13 21:06:58,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:06:58,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:06:58,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-11-13 21:06:58,741 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-13 21:06:58,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 21:06:58,745 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:06:58,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:06:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:06:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:06:59,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:06:59,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2024-11-13 21:06:59,194 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-11-13 21:06:59,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:06:59,194 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:06:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:06:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:06:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:06:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:06:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2024-11-13 21:06:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-11-13 21:06:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:06:59,315 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:06:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:06:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:06:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:06:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:06:59,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2024-11-13 21:06:59,446 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-13 21:06:59,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 21:06:59,447 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:06:59,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:06:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:06:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:06:59,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:06:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-11-13 21:06:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-13 21:06:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 21:06:59,775 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:06:59,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:06:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:06:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:06:59,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:06:59,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 28 states and 38 transitions. [2024-11-13 21:06:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2024-11-13 21:06:59,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 21:06:59,933 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:06:59,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:06:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:07:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:07:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:07:00,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 31 states and 42 transitions. [2024-11-13 21:07:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2024-11-13 21:07:00,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 21:07:00,287 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:07:00,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:07:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:07:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:07:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:07:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2024-11-13 21:07:00,387 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-11-13 21:07:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 21:07:00,388 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:07:00,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:07:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:07:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:07:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:07:00,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-11-13 21:07:00,598 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-13 21:07:00,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 21:07:00,599 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-11-13 21:07:00,613 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-13 21:07:00,751 INFO L77 FloydHoareUtils]: At program point L692-2(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))) [2024-11-13 21:07:00,752 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))) [2024-11-13 21:07:00,753 INFO L77 FloydHoareUtils]: At program point L692-4(lines 692 699) the Hoare annotation is: (not (and (not (= |parse_input_~i~0#1| 0)) (< |parse_input_~i~0#1| 1))) [2024-11-13 21:07:00,753 INFO L77 FloydHoareUtils]: At program point parse_inputFINAL(lines 691 700) the Hoare annotation is: true [2024-11-13 21:07:00,754 INFO L75 FloydHoareUtils]: For program point parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 692) no Hoare annotation was computed. [2024-11-13 21:07:00,754 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)) [2024-11-13 21:07:00,755 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)) [2024-11-13 21:07:00,755 INFO L77 FloydHoareUtils]: At program point parse_inputEXIT(lines 691 700) the Hoare annotation is: true [2024-11-13 21:07:00,755 INFO L75 FloydHoareUtils]: For program point parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 692) no Hoare annotation was computed. [2024-11-13 21:07:00,756 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)) [2024-11-13 21:07:00,756 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 691 700) the Hoare annotation is: true [2024-11-13 21:07:00,756 INFO L77 FloydHoareUtils]: At program point L722-1(line 722) the Hoare annotation is: true [2024-11-13 21:07:00,756 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 21:07:00,756 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 21:07:00,756 INFO L77 FloydHoareUtils]: At program point L724(line 724) the Hoare annotation is: true [2024-11-13 21:07:00,756 INFO L77 FloydHoareUtils]: At program point L723(line 723) the Hoare annotation is: true [2024-11-13 21:07:00,756 INFO L77 FloydHoareUtils]: At program point L722(line 722) the Hoare annotation is: true [2024-11-13 21:07:00,778 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-13 21:07:00,779 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-13 21:07:00,779 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-13 21:07:00,780 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_1 [2024-11-13 21:07:00,780 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_2 [2024-11-13 21:07:00,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:07:00 ImpRootNode [2024-11-13 21:07:00,783 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:07:00,783 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:07:00,783 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:07:00,784 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:07:00,784 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:06:58" (3/4) ... [2024-11-13 21:07:00,787 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 21:07:00,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parse_input [2024-11-13 21:07:00,794 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-11-13 21:07:00,794 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 21:07:00,796 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 21:07:00,796 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 21:07:00,796 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 21:07:00,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:07:00,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 21:07:00,892 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:07:00,895 INFO L158 Benchmark]: Toolchain (without parser) took 3439.77ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.1MB in the beginning and 273.6MB in the end (delta: -180.6MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2024-11-13 21:07:00,896 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:07:00,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.45ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 72.9MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:07:00,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.54ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:07:00,897 INFO L158 Benchmark]: Boogie Preprocessor took 43.84ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 69.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:07:00,897 INFO L158 Benchmark]: RCFGBuilder took 467.69ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 50.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:07:00,897 INFO L158 Benchmark]: CodeCheck took 2112.88ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 50.5MB in the beginning and 278.2MB in the end (delta: -227.7MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-11-13 21:07:00,898 INFO L158 Benchmark]: Witness Printer took 109.13ms. Allocated memory is still 352.3MB. Free memory was 278.2MB in the beginning and 273.6MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:07:00,899 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: 1.9s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 373 IncrementalHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 56 mSDtfsCounter, 373 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 717 GetRequests, 675 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: 0.1s 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 - 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 0.34ms. Allocated memory is still 167.8MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.45ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 72.9MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.54ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.84ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 69.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 467.69ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 50.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2112.88ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 50.5MB in the beginning and 278.2MB in the end (delta: -227.7MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 109.13ms. Allocated memory is still 352.3MB. Free memory was 278.2MB in the beginning and 273.6MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. 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! [2024-11-13 21:07:00,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad5b57f-6392-461d-a76b-a27b7c947eaa/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE