./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2n_remove_all_reverse.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_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/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_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/sll2n_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/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_f4342506-6ebd-42ff-9570-cc7d0be49ec0/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 b3d7899c651fa61cfb9cf623e0f4ceb470fe32eb0d0272d2277c965ed07c2f88 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:12:44,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:12:44,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-25 02:12:44,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:12:44,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:12:44,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:12:44,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:12:44,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:12:44,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:12:44,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:12:44,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:12:44,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:12:44,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:12:44,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:12:44,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:12:44,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:12:44,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:12:44,529 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:12:44,529 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:12:44,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:12:44,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:12:44,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:12:44,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:12:44,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:12:44,530 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:12:44,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:12:44,530 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_f4342506-6ebd-42ff-9570-cc7d0be49ec0/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 -> b3d7899c651fa61cfb9cf623e0f4ceb470fe32eb0d0272d2277c965ed07c2f88 [2024-11-25 02:12:44,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:12:44,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:12:44,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:12:44,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:12:44,890 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:12:44,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/list-simple/sll2n_remove_all_reverse.i [2024-11-25 02:12:47,928 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/data/94dd9552b/c05ab57c02ff42a79083c417e9c8bcc5/FLAG12ddde3e5 [2024-11-25 02:12:48,311 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:12:48,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/sv-benchmarks/c/list-simple/sll2n_remove_all_reverse.i [2024-11-25 02:12:48,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/data/94dd9552b/c05ab57c02ff42a79083c417e9c8bcc5/FLAG12ddde3e5 [2024-11-25 02:12:48,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/data/94dd9552b/c05ab57c02ff42a79083c417e9c8bcc5 [2024-11-25 02:12:48,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:12:48,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:12:48,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:12:48,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:12:48,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:12:48,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:12:48" (1/1) ... [2024-11-25 02:12:48,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae69688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:48, skipping insertion in model container [2024-11-25 02:12:48,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:12:48" (1/1) ... [2024-11-25 02:12:48,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:12:48,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:12:48,905 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:12:48,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:12:49,003 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:12:49,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49 WrapperNode [2024-11-25 02:12:49,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:12:49,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:12:49,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:12:49,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:12:49,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,064 INFO L138 Inliner]: procedures = 126, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 108 [2024-11-25 02:12:49,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:12:49,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:12:49,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:12:49,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:12:49,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,101 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,104 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:12:49,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:12:49,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:12:49,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:12:49,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:12:49,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:12:49,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:12:49,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:12:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 02:12:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 02:12:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:12:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:12:49,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-25 02:12:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-25 02:12:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:12:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-25 02:12:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:12:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:12:49,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:12:49,381 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:12:49,383 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:12:49,694 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-11-25 02:12:49,698 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:12:49,806 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:12:49,806 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-25 02:12:49,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:12:49 BoogieIcfgContainer [2024-11-25 02:12:49,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:12:49,807 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:12:49,807 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:12:49,819 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:12:49,819 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:12:49" (1/1) ... [2024-11-25 02:12:49,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:12:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2024-11-25 02:12:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-11-25 02:12:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-25 02:12:49,888 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:49,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:50,122 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 02:12:50,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2024-11-25 02:12:50,160 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-25 02:12:50,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 02:12:50,161 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:50,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:50,409 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 02:12:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:50,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-11-25 02:12:50,470 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-11-25 02:12:50,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 02:12:50,470 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:50,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:50,655 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 02:12:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2024-11-25 02:12:50,922 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-25 02:12:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:12:50,922 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:50,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 02:12:51,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:51,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2024-11-25 02:12:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2024-11-25 02:12:51,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:12:51,623 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:51,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 02:12:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:52,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-11-25 02:12:52,617 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-25 02:12:52,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 02:12:52,618 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:52,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 02:12:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2024-11-25 02:12:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-11-25 02:12:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 02:12:52,927 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:52,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:53,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 02:12:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:53,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2024-11-25 02:12:53,379 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-25 02:12:53,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 02:12:53,380 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:53,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 02:12:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:53,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2024-11-25 02:12:53,425 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-25 02:12:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:12:53,425 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:53,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:53,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 02:12:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2024-11-25 02:12:53,541 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-25 02:12:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-25 02:12:53,541 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:12:53,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:12:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:12:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 02:12:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:12:53,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-11-25 02:12:53,669 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-25 02:12:53,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 02:12:53,670 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2024-11-25 02:12:53,679 INFO L726 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2024-11-25 02:12:53,823 INFO L77 FloydHoareUtils]: At program point L576(lines 576 578) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 1 |ULTIMATE.start_sll_create_~len#1|) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_sll_create_~len#1| 2)) [2024-11-25 02:12:53,824 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 612) no Hoare annotation was computed. [2024-11-25 02:12:53,824 INFO L77 FloydHoareUtils]: At program point L572(line 572) the Hoare annotation is: true [2024-11-25 02:12:53,824 INFO L77 FloydHoareUtils]: At program point L593(lines 593 605) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) [2024-11-25 02:12:53,824 INFO L77 FloydHoareUtils]: At program point L585-3(line 585) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 1 |ULTIMATE.start_sll_create_#t~post5#1|) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_sll_create_#t~post5#1| 2)) [2024-11-25 02:12:53,824 INFO L77 FloydHoareUtils]: At program point L585-4(line 585) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_sll_create_#t~post5#1| 2)) [2024-11-25 02:12:53,825 INFO L77 FloydHoareUtils]: At program point L585-5(lines 585 589) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_sll_create_~len#1| 2)) [2024-11-25 02:12:53,825 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 585) no Hoare annotation was computed. [2024-11-25 02:12:53,825 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 612) no Hoare annotation was computed. [2024-11-25 02:12:53,825 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 585) no Hoare annotation was computed. [2024-11-25 02:12:53,825 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 02:12:53,825 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 612) no Hoare annotation was computed. [2024-11-25 02:12:53,825 INFO L77 FloydHoareUtils]: At program point L599-1(lines 599 602) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) [2024-11-25 02:12:53,826 INFO L77 FloydHoareUtils]: At program point L599-4(lines 599 602) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) [2024-11-25 02:12:53,826 INFO L77 FloydHoareUtils]: At program point L599-5(lines 599 602) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) [2024-11-25 02:12:53,826 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 02:12:53,826 INFO L77 FloydHoareUtils]: At program point L612(line 612) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~len~0#1| 2)) [2024-11-25 02:12:53,826 INFO L77 FloydHoareUtils]: At program point L612-1(line 612) the Hoare annotation is: (<= |ULTIMATE.start_main_~len~0#1| 2) [2024-11-25 02:12:53,826 INFO L77 FloydHoareUtils]: At program point L612-5(line 612) the Hoare annotation is: (and (<= |ULTIMATE.start_main_#t~post13#1| 1) (<= 0 |ULTIMATE.start_main_#t~post13#1|)) [2024-11-25 02:12:53,827 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 612) no Hoare annotation was computed. [2024-11-25 02:12:53,827 INFO L77 FloydHoareUtils]: At program point L612-6(line 612) the Hoare annotation is: (<= |ULTIMATE.start_main_#t~post13#1| 1) [2024-11-25 02:12:53,827 INFO L77 FloydHoareUtils]: At program point L612-7(lines 612 614) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| 1) [2024-11-25 02:12:53,827 INFO L77 FloydHoareUtils]: At program point L592(lines 592 606) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)) [2024-11-25 02:12:53,835 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-25 02:12:53,837 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~i~0 [2024-11-25 02:12:53,841 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-25 02:12:53,842 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len [2024-11-25 02:12:53,842 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-25 02:12:53,842 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len [2024-11-25 02:12:53,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:12:53 ImpRootNode [2024-11-25 02:12:53,844 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:12:53,844 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:12:53,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:12:53,845 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:12:53,846 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:12:49" (3/4) ... [2024-11-25 02:12:53,848 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 02:12:53,855 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-25 02:12:53,856 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-25 02:12:53,856 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 02:12:53,856 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 02:12:53,968 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:12:53,968 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:12:53,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:12:53,969 INFO L158 Benchmark]: Toolchain (without parser) took 5594.36ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 75.6MB in the end (delta: 42.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-25 02:12:53,970 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:12:53,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.84ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 100.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:12:53,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.80ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 98.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:12:53,971 INFO L158 Benchmark]: Boogie Preprocessor took 57.39ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:12:53,971 INFO L158 Benchmark]: RCFGBuilder took 680.71ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 78.6MB in the end (delta: 18.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 02:12:53,971 INFO L158 Benchmark]: CodeCheck took 4036.49ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 81.5MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:12:53,972 INFO L158 Benchmark]: Witness Printer took 123.87ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 75.6MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:12:53,974 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 1 procedures, 23 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251 mSDsluCounter, 203 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 908 IncrementalHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 127 mSDtfsCounter, 908 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 780 GetRequests, 684 SyntacticMatches, 22 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2379 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 7/7 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: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 612]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 612]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 612]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 612]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((2 <= len) && (len <= 2)) && (len <= 2)) - InvariantResult [Line: 612]: Loop Invariant Derived loop invariant: (i <= 1) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.84ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 100.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.80ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 98.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.39ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 680.71ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 78.6MB in the end (delta: 18.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 4036.49ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 81.5MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 123.87ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 75.6MB in the end (delta: 5.8MB). 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: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len RESULT: Ultimate proved your program to be correct! [2024-11-25 02:12:53,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4342506-6ebd-42ff-9570-cc7d0be49ec0/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