./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm --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 cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:19:45,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:19:45,889 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:19:45,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:19:45,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:19:45,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:19:45,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:19:45,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:19:45,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:19:45,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:19:45,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:19:45,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:19:45,935 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:19:45,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:19:45,937 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:19:45,937 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:19:45,938 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:19:45,938 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:19:45,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:19:45,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:45,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:19:45,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:19:45,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:19:45,938 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:19:45,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:19:45,939 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_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 [2024-11-13 20:19:46,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:19:46,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:19:46,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:19:46,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:19:46,263 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:19:46,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i Unable to find full path for "g++" [2024-11-13 20:19:48,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:19:48,577 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:19:48,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2024-11-13 20:19:48,593 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/data/0b83a7f87/bd9087d35d0c4b33abfba08392ba7bc8/FLAG2582276e6 [2024-11-13 20:19:48,617 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/data/0b83a7f87/bd9087d35d0c4b33abfba08392ba7bc8 [2024-11-13 20:19:48,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:19:48,621 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:19:48,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:48,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:19:48,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:19:48,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:48" (1/1) ... [2024-11-13 20:19:48,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6509bccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:48, skipping insertion in model container [2024-11-13 20:19:48,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:48" (1/1) ... [2024-11-13 20:19:48,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:19:49,089 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_4469e2a0-8573-4c28-b27c-beef3c7375c3/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2024-11-13 20:19:49,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:49,110 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:19:49,183 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_4469e2a0-8573-4c28-b27c-beef3c7375c3/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2024-11-13 20:19:49,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:49,229 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:19:49,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49 WrapperNode [2024-11-13 20:19:49,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:49,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:49,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:19:49,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:19:49,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,291 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109 [2024-11-13 20:19:49,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:49,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:19:49,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:19:49,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:19:49,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,309 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:19:49,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:19:49,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:19:49,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:19:49,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:49,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:19:49,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:19:49,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:19:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-13 20:19:49,386 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-13 20:19:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 20:19:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 20:19:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:19:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:19:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 20:19:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 20:19:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:19:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:19:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:19:49,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:19:49,509 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:19:49,511 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:19:49,535 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-13 20:19:49,739 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-13 20:19:49,740 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:19:49,804 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:19:49,804 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 20:19:49,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:49 BoogieIcfgContainer [2024-11-13 20:19:49,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:19:49,805 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:19:49,805 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:19:49,817 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:19:49,817 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:19:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-11-13 20:19:49,889 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-11-13 20:19:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 20:19:49,891 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:50,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:19:50,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-11-13 20:19:50,195 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-11-13 20:19:50,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 20:19:50,195 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:50,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:50,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 20:19:50,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2024-11-13 20:19:50,783 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2024-11-13 20:19:50,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 20:19:50,783 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:50,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:51,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:19:51,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:51,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 15 states and 21 transitions. [2024-11-13 20:19:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2024-11-13 20:19:51,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 20:19:51,246 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2024-11-13 20:19:51,258 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-13 20:19:51,310 INFO L77 FloydHoareUtils]: At program point L573(line 573) the Hoare annotation is: true [2024-11-13 20:19:51,310 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 572 574) the Hoare annotation is: true [2024-11-13 20:19:51,310 INFO L75 FloydHoareUtils]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2024-11-13 20:19:51,311 INFO L77 FloydHoareUtils]: At program point L589(lines 589 591) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-13 20:19:51,311 INFO L77 FloydHoareUtils]: At program point L589-1(lines 589 591) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-13 20:19:51,311 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 624 643) the Hoare annotation is: true [2024-11-13 20:19:51,311 INFO L77 FloydHoareUtils]: At program point L618-2(lines 618 621) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-13 20:19:51,311 INFO L75 FloydHoareUtils]: For program point L635(lines 635 637) no Hoare annotation was computed. [2024-11-13 20:19:51,312 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2024-11-13 20:19:51,312 INFO L77 FloydHoareUtils]: At program point L590(line 590) the Hoare annotation is: true [2024-11-13 20:19:51,312 INFO L75 FloydHoareUtils]: For program point L611-2(lines 611 614) no Hoare annotation was computed. [2024-11-13 20:19:51,312 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 20:19:51,312 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 20:19:51,312 INFO L77 FloydHoareUtils]: At program point L587-2(lines 587 600) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-13 20:19:51,312 INFO L77 FloydHoareUtils]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2024-11-13 20:19:51,313 INFO L75 FloydHoareUtils]: For program point main_ERROR#1(line 641) no Hoare annotation was computed. [2024-11-13 20:19:51,313 INFO L77 FloydHoareUtils]: At program point L633-2(lines 633 638) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~0#1|) [2024-11-13 20:19:51,313 INFO L77 FloydHoareUtils]: At program point L629-2(lines 629 632) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-13 20:19:51,323 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-13 20:19:51,329 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-13 20:19:51,329 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-13 20:19:51,330 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-13 20:19:51,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:19:51 ImpRootNode [2024-11-13 20:19:51,331 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:19:51,331 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:19:51,331 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:19:51,332 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:19:51,332 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:49" (3/4) ... [2024-11-13 20:19:51,335 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 20:19:51,338 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2024-11-13 20:19:51,344 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-13 20:19:51,345 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 20:19:51,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 20:19:51,347 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 20:19:51,436 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:19:51,436 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 20:19:51,436 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:19:51,437 INFO L158 Benchmark]: Toolchain (without parser) took 2816.35ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 87.0MB in the end (delta: 31.0MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,438 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:51,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.73ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 100.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.33ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 98.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:51,438 INFO L158 Benchmark]: Boogie Preprocessor took 26.42ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 97.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:51,439 INFO L158 Benchmark]: RCFGBuilder took 486.08ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 78.3MB in the end (delta: 18.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,440 INFO L158 Benchmark]: CodeCheck took 1525.37ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 92.2MB in the end (delta: -14.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:51,440 INFO L158 Benchmark]: Witness Printer took 105.03ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 87.0MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,442 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 26 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 252 GetRequests, 226 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 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 - PositiveResult [Line: 641]: 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: 587]: Loop Invariant Derived loop invariant: (2 <= len) - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (1 <= i) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: (2 <= len) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.73ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 100.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.33ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 98.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.42ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 97.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 486.08ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 78.3MB in the end (delta: 18.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 1525.37ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 92.2MB in the end (delta: -14.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 105.03ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 87.0MB in the end (delta: 5.2MB). 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: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID RESULT: Ultimate proved your program to be correct! [2024-11-13 20:19:51,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4469e2a0-8573-4c28-b27c-beef3c7375c3/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE