./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/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_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 09575df3d22e9082519fef8b3f639469f79418a93deb54dd64ac9991de61e42a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:29:22,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:29:22,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:29:22,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:29:22,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:29:22,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:29:22,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:29:22,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:29:22,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:29:22,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:29:22,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:29:22,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:29:22,891 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:29:22,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:29:22,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:29:22,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:29:22,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:29:22,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:29:22,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:29:22,892 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:29:22,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:29:22,892 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:29:22,892 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:29:22,892 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:29:22,892 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:29:22,892 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:29:22,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:29:22,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:29:22,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:29:22,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:29:22,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:29:22,895 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:29:22,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:29:22,895 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_f0916e2c-605b-43e2-a789-fa36bad119b3/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 ! call(reach_error())) ) 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 -> 09575df3d22e9082519fef8b3f639469f79418a93deb54dd64ac9991de61e42a [2024-11-25 02:29:23,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:29:23,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:29:23,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:29:23,255 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:29:23,256 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:29:23,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2024-11-25 02:29:26,546 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/data/44b4ac198/864556c2a72245cebf8f3727ef24ea0c/FLAGb593dc3ed [2024-11-25 02:29:26,836 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:29:26,836 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2024-11-25 02:29:26,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/data/44b4ac198/864556c2a72245cebf8f3727ef24ea0c/FLAGb593dc3ed [2024-11-25 02:29:27,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/data/44b4ac198/864556c2a72245cebf8f3727ef24ea0c [2024-11-25 02:29:27,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:29:27,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:29:27,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:29:27,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:29:27,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:29:27,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d055b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27, skipping insertion in model container [2024-11-25 02:29:27,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:29:27,346 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2024-11-25 02:29:27,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:29:27,376 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:29:27,389 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i[951,964] [2024-11-25 02:29:27,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:29:27,416 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:29:27,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27 WrapperNode [2024-11-25 02:29:27,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:29:27,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:29:27,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:29:27,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:29:27,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,449 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2024-11-25 02:29:27,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:29:27,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:29:27,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:29:27,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:29:27,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,469 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:29:27,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:29:27,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:29:27,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:29:27,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:29:27,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:29:27,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:29:27,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:29:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:29:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:29:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:29:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:29:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 02:29:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 02:29:27,615 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:29:27,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:29:27,778 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-25 02:29:27,779 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:29:27,830 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:29:27,831 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-25 02:29:27,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:29:27 BoogieIcfgContainer [2024-11-25 02:29:27,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:29:27,832 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:29:27,832 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:29:27,843 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:29:27,843 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:29:27" (1/1) ... [2024-11-25 02:29:27,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:29:27,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:29:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2024-11-25 02:29:27,913 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2024-11-25 02:29:27,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 02:29:27,916 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:29:27,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:29:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:29:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:29:28,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-25 02:29:28,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:29:28,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:29:28,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:29:28,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-11-25 02:29:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-11-25 02:29:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 02:29:28,418 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:29:28,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:29:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:29:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:29:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:29:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2024-11-25 02:29:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-11-25 02:29:29,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 02:29:29,474 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:29:29,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:29:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:29:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:29:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:29:30,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 19 states and 29 transitions. [2024-11-25 02:29:30,405 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 29 transitions. [2024-11-25 02:29:30,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 02:29:30,407 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:29:30,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:29:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 02:29:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:29:30,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-25 02:29:30,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:29:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:29:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:29:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2024-11-25 02:29:32,921 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2024-11-25 02:29:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 02:29:32,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:29:32,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:29:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:29:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-25 02:29:37,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:29:37,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 16 states and 20 transitions. [2024-11-25 02:29:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-11-25 02:29:37,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 02:29:37,903 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-25 02:29:37,918 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-25 02:29:38,587 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 02:29:38,588 INFO L77 FloydHoareUtils]: At program point L48(line 48) the Hoare annotation is: true [2024-11-25 02:29:38,588 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 02:29:38,588 INFO L77 FloydHoareUtils]: At program point L38-1(lines 38 47) the Hoare annotation is: (= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) (mod (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~q~0#1|)) 4294967296)) [2024-11-25 02:29:38,589 INFO L77 FloydHoareUtils]: At program point L34-2(lines 34 37) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 1)) (.cse1 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|))) (or (and (<= |ULTIMATE.start_main_~B~0#1| (div |ULTIMATE.start_main_~b~0#1| 2)) .cse0 (<= |ULTIMATE.start_main_~b~0#1| (* 2 |ULTIMATE.start_main_~B~0#1|)) (<= 1 (mod |ULTIMATE.start_main_~r~0#1| 4294967296)) .cse1 .cse2 (= 2 |ULTIMATE.start_main_~b~0#1|)) (and (= |ULTIMATE.start_main_~b~0#1| 1) .cse0 .cse1 (= |ULTIMATE.start_main_~B~0#1| |ULTIMATE.start_main_~b~0#1|) .cse2))) [2024-11-25 02:29:38,589 INFO L77 FloydHoareUtils]: At program point L43-2(lines 38 47) the Hoare annotation is: true [2024-11-25 02:29:38,589 INFO L77 FloydHoareUtils]: At program point L39(lines 38 47) the Hoare annotation is: (= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) (mod (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~q~0#1|)) 4294967296)) [2024-11-25 02:29:38,589 INFO L77 FloydHoareUtils]: At program point L19-2(lines 18 24) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-25 02:29:38,589 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 18 24) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-25 02:29:38,590 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: (not (and (not (= |__VERIFIER_assert_#in~cond| 0)) (< |__VERIFIER_assert_#in~cond| 1))) [2024-11-25 02:29:38,590 INFO L77 FloydHoareUtils]: At program point L20(lines 20 21) the Hoare annotation is: true [2024-11-25 02:29:38,590 INFO L77 FloydHoareUtils]: At program point L19(lines 19 22) the Hoare annotation is: (or (and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (<= 1 __VERIFIER_assert_~cond)) (= __VERIFIER_assert_~cond 0)) [2024-11-25 02:29:38,590 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) the Hoare annotation is: true [2024-11-25 02:29:38,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:29:38 ImpRootNode [2024-11-25 02:29:38,624 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:29:38,625 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:29:38,625 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:29:38,626 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:29:38,627 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:29:27" (3/4) ... [2024-11-25 02:29:38,629 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 02:29:38,634 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-25 02:29:38,640 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-25 02:29:38,644 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-25 02:29:38,645 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 02:29:38,645 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 02:29:38,758 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:29:38,761 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:29:38,762 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:29:38,763 INFO L158 Benchmark]: Toolchain (without parser) took 11619.00ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 93.1MB in the beginning and 140.2MB in the end (delta: -47.1MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-11-25 02:29:38,763 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:29:38,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.93ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.7MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:29:38,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.31ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:29:38,764 INFO L158 Benchmark]: Boogie Preprocessor took 30.94ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 949.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:29:38,765 INFO L158 Benchmark]: RCFGBuilder took 348.58ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 67.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:29:38,769 INFO L158 Benchmark]: CodeCheck took 10791.51ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 67.2MB in the beginning and 144.6MB in the end (delta: -77.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:29:38,769 INFO L158 Benchmark]: Witness Printer took 136.55ms. Allocated memory is still 184.5MB. Free memory was 144.6MB in the beginning and 140.2MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:29:38,771 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 178 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 462 IncrementalHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 178 mSolverCounterUnsat, 33 mSDtfsCounter, 462 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 629 GetRequests, 543 SyntacticMatches, 6 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2442 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 439 SizeOfPredicates, 3 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 15/22 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: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((((B <= (b / 2)) && (A <= 1)) && (b <= ((long long) 2 * B))) && (1 <= r)) && (q == 0)) && (A == r)) && (2 == b)) || (((((b == 1) && (A <= 1)) && (q == 0)) && (B == b)) && (A == r))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((0 < cond) || (cond == 0)) Ensures: (cond != 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.93ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 81.7MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.31ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.94ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 949.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 348.58ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 67.4MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 10791.51ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 67.2MB in the beginning and 144.6MB in the end (delta: -77.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 136.55ms. Allocated memory is still 184.5MB. Free memory was 144.6MB in the beginning and 140.2MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-25 02:29:38,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0916e2c-605b-43e2-a789-fa36bad119b3/bin/ukojak-verify-ENZ3QT5qd3/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