./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/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_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/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_52d59f96-0594-47d7-bc1a-1193be8052e1/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 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:41:37,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:41:38,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-25 04:41:38,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:41:38,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:41:38,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:41:38,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:41:38,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:41:38,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:41:38,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:41:38,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:41:38,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:41:38,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 04:41:38,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:41:38,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 04:41:38,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:41:38,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:41:38,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:41:38,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:41:38,056 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:41:38,056 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:41:38,056 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 04:41:38,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:41:38,056 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:41:38,057 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:41:38,057 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:41:38,057 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:41:38,057 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:41:38,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:41:38,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:41:38,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:41:38,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:41:38,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:41:38,058 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:41:38,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:41:38,058 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_52d59f96-0594-47d7-bc1a-1193be8052e1/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 -> 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 [2024-11-25 04:41:38,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:41:38,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:41:38,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:41:38,438 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:41:38,438 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:41:38,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2024-11-25 04:41:41,908 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/data/b6b7ef030/1aa02ecdbfd248bab6969a567002da24/FLAGe33398375 [2024-11-25 04:41:42,246 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:41:42,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2024-11-25 04:41:42,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/data/b6b7ef030/1aa02ecdbfd248bab6969a567002da24/FLAGe33398375 [2024-11-25 04:41:42,279 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/data/b6b7ef030/1aa02ecdbfd248bab6969a567002da24 [2024-11-25 04:41:42,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:41:42,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:41:42,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:41:42,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:41:42,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:41:42,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca7ef00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42, skipping insertion in model container [2024-11-25 04:41:42,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,323 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:41:42,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:41:42,727 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:41:42,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:41:42,833 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:41:42,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42 WrapperNode [2024-11-25 04:41:42,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:41:42,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:41:42,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:41:42,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:41:42,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,883 INFO L138 Inliner]: procedures = 122, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 110 [2024-11-25 04:41:42,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:41:42,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:41:42,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:41:42,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:41:42,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,923 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:41:42,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:41:42,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:41:42,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:41:42,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:42" (1/1) ... [2024-11-25 04:41:42,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:41:42,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:41:42,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:41:42,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:41:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 04:41:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 04:41:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 04:41:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:41:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-25 04:41:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-25 04:41:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:41:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:41:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:41:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:41:43,167 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:41:43,169 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:41:43,477 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-25 04:41:43,478 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:41:43,648 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:41:43,648 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-25 04:41:43,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:41:43 BoogieIcfgContainer [2024-11-25 04:41:43,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:41:43,650 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:41:43,650 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:41:43,663 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:41:43,663 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:41:43" (1/1) ... [2024-11-25 04:41:43,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:41:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:41:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2024-11-25 04:41:43,736 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2024-11-25 04:41:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 04:41:43,739 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:41:43,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:41:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:41:44,177 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 04:41:44,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:41:44,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2024-11-25 04:41:44,431 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-25 04:41:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 04:41:44,432 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:41:44,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:41:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:41:44,700 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 04:41:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:41:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-11-25 04:41:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-11-25 04:41:45,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:41:45,058 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:41:45,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:41:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:41:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 04:41:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:41:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-11-25 04:41:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-11-25 04:41:45,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 04:41:45,568 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2024-11-25 04:41:45,578 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-25 04:41:45,711 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 597 617) the Hoare annotation is: true [2024-11-25 04:41:45,712 INFO L77 FloydHoareUtils]: At program point L581(lines 581 583) the Hoare annotation is: (or (and (<= 5 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_~len#1| 5)) (and (< |ULTIMATE.start_dll_create_~len#1| 5) (<= 1 |ULTIMATE.start_dll_create_~len#1|))) [2024-11-25 04:41:45,712 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 593) no Hoare annotation was computed. [2024-11-25 04:41:45,712 INFO L77 FloydHoareUtils]: At program point L606-2(lines 606 613) the Hoare annotation is: true [2024-11-25 04:41:45,712 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 593) no Hoare annotation was computed. [2024-11-25 04:41:45,712 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 04:41:45,712 INFO L77 FloydHoareUtils]: At program point L575(line 575) the Hoare annotation is: true [2024-11-25 04:41:45,712 INFO L77 FloydHoareUtils]: At program point L608-5(lines 608 610) the Hoare annotation is: true [2024-11-25 04:41:45,713 INFO L77 FloydHoareUtils]: At program point L600-1(lines 600 605) the Hoare annotation is: true [2024-11-25 04:41:45,713 INFO L77 FloydHoareUtils]: At program point L600-4(lines 600 605) the Hoare annotation is: true [2024-11-25 04:41:45,713 INFO L77 FloydHoareUtils]: At program point L601-5(lines 601 603) the Hoare annotation is: true [2024-11-25 04:41:45,713 INFO L77 FloydHoareUtils]: At program point L593(line 593) the Hoare annotation is: (or (and (<= 5 |ULTIMATE.start_dll_create_#t~post4#1|) (<= |ULTIMATE.start_dll_create_#t~post4#1| 5)) (and (<= 1 |ULTIMATE.start_dll_create_#t~post4#1|) (< |ULTIMATE.start_dll_create_#t~post4#1| 5))) [2024-11-25 04:41:45,713 INFO L77 FloydHoareUtils]: At program point L593-1(line 593) the Hoare annotation is: (<= |ULTIMATE.start_dll_create_#t~post4#1| 5) [2024-11-25 04:41:45,713 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 04:41:45,713 INFO L77 FloydHoareUtils]: At program point L579-3(lines 579 594) the Hoare annotation is: (<= |ULTIMATE.start_dll_create_~len#1| 5) [2024-11-25 04:41:45,713 INFO L77 FloydHoareUtils]: At program point main_ERROR#1(line 615) the Hoare annotation is: true [2024-11-25 04:41:45,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:41:45 ImpRootNode [2024-11-25 04:41:45,725 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:41:45,726 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:41:45,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:41:45,726 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:41:45,727 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:41:43" (3/4) ... [2024-11-25 04:41:45,730 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 04:41:45,739 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-25 04:41:45,741 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-25 04:41:45,742 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 04:41:45,742 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 04:41:45,859 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 04:41:45,859 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 04:41:45,859 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:41:45,862 INFO L158 Benchmark]: Toolchain (without parser) took 3577.91ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 68.8MB in the end (delta: 47.6MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2024-11-25 04:41:45,863 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:41:45,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.27ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 98.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:41:45,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.60ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 97.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:41:45,864 INFO L158 Benchmark]: Boogie Preprocessor took 47.04ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:41:45,864 INFO L158 Benchmark]: RCFGBuilder took 714.12ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 75.6MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:41:45,864 INFO L158 Benchmark]: CodeCheck took 2075.44ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 74.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:41:45,865 INFO L158 Benchmark]: Witness Printer took 133.02ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 68.8MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:41:45,869 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 12 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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: 593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 593]: 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: 579]: Loop Invariant Derived loop invariant: (len <= 5) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.27ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 98.9MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.60ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 97.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.04ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 714.12ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 75.6MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2075.44ms. Allocated memory is still 142.6MB. Free memory was 75.6MB in the beginning and 74.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 133.02ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 68.8MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-25 04:41:45,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d59f96-0594-47d7-bc1a-1193be8052e1/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