./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/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_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/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_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:29:52,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:29:52,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:29:52,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:29:52,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:29:52,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:29:52,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:29:52,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:29:52,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:29:52,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:29:52,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:29:52,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:29:52,227 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:29:52,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:29:52,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:29:52,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:29:52,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:29:52,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:29:52,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:29:52,228 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:29:52,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:29:52,228 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:29:52,228 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:29:52,228 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:29:52,228 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:29:52,228 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:29:52,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:29:52,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:29:52,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:29:52,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:29:52,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:29:52,229 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:29:52,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:29:52,231 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_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 [2024-11-25 03:29:52,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:29:52,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:29:52,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:29:52,600 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:29:52,601 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:29:52,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2024-11-25 03:29:55,640 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/data/fd4a410c0/ac47dd5f8df04618836cdf3264b46783/FLAG0533dffed [2024-11-25 03:29:56,052 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:29:56,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2024-11-25 03:29:56,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/data/fd4a410c0/ac47dd5f8df04618836cdf3264b46783/FLAG0533dffed [2024-11-25 03:29:56,105 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/data/fd4a410c0/ac47dd5f8df04618836cdf3264b46783 [2024-11-25 03:29:56,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:29:56,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:29:56,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:29:56,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:29:56,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:29:56,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecdb761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56, skipping insertion in model container [2024-11-25 03:29:56,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:29:56,582 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_437382e1-edf7-41bd-ad8f-93b46fc1bf44/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2024-11-25 03:29:56,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:29:56,603 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:29:56,657 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_437382e1-edf7-41bd-ad8f-93b46fc1bf44/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2024-11-25 03:29:56,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:29:56,684 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:29:56,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56 WrapperNode [2024-11-25 03:29:56,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:29:56,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:29:56,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:29:56,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:29:56,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,724 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109 [2024-11-25 03:29:56,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:29:56,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:29:56,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:29:56,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:29:56,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,753 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:29:56,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:29:56,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:29:56,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:29:56,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:29:56" (1/1) ... [2024-11-25 03:29:56,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:29:56,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:29:56,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:29:56,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:29:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-25 03:29:56,839 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-25 03:29:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 03:29:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 03:29:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 03:29:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:29:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-25 03:29:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-25 03:29:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 03:29:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:29:56,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:29:56,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:29:56,981 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:29:56,983 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:29:57,009 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-25 03:29:57,216 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-25 03:29:57,216 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:29:57,343 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:29:57,347 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-25 03:29:57,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:29:57 BoogieIcfgContainer [2024-11-25 03:29:57,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:29:57,348 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:29:57,348 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:29:57,359 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:29:57,359 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:29:57" (1/1) ... [2024-11-25 03:29:57,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:29:57,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:29:57,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2024-11-25 03:29:57,429 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2024-11-25 03:29:57,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 03:29:57,432 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:29:57,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:29:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:29:57,706 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 03:29:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:29:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-11-25 03:29:57,796 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-11-25 03:29:57,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 03:29:57,810 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:29:57,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:29:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:29:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:29:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:29:58,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2024-11-25 03:29:58,199 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2024-11-25 03:29:58,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:29:58,200 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:29:58,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:29:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:29:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 03:29:59,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:29:59,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2024-11-25 03:29:59,151 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2024-11-25 03:29:59,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 03:29:59,155 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:29:59,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:29:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:29:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 03:29:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:29:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2024-11-25 03:29:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2024-11-25 03:29:59,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:29:59,559 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:29:59,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:29:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:29:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-25 03:30:00,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:30:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2024-11-25 03:30:00,126 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2024-11-25 03:30:00,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 03:30:00,127 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-25 03:30:00,139 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-25 03:30:00,234 INFO L77 FloydHoareUtils]: At program point L573(line 573) the Hoare annotation is: true [2024-11-25 03:30:00,234 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 572 574) the Hoare annotation is: true [2024-11-25 03:30:00,234 INFO L75 FloydHoareUtils]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2024-11-25 03:30:00,234 INFO L77 FloydHoareUtils]: At program point L589(lines 589 591) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-25 03:30:00,234 INFO L77 FloydHoareUtils]: At program point L589-1(lines 589 591) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-25 03:30:00,234 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 624 643) the Hoare annotation is: true [2024-11-25 03:30:00,234 INFO L77 FloydHoareUtils]: At program point L590(line 590) the Hoare annotation is: true [2024-11-25 03:30:00,235 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 03:30:00,235 INFO L77 FloydHoareUtils]: At program point L633-3(lines 633 638) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~0#1|) [2024-11-25 03:30:00,235 INFO L77 FloydHoareUtils]: At program point L618-3(lines 618 621) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-25 03:30:00,235 INFO L75 FloydHoareUtils]: For program point L635(lines 635 637) no Hoare annotation was computed. [2024-11-25 03:30:00,235 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2024-11-25 03:30:00,235 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 03:30:00,235 INFO L75 FloydHoareUtils]: For program point L611-3(lines 611 614) no Hoare annotation was computed. [2024-11-25 03:30:00,235 INFO L77 FloydHoareUtils]: At program point L587-3(lines 587 600) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-25 03:30:00,235 INFO L77 FloydHoareUtils]: At program point L604-3(lines 604 608) the Hoare annotation is: true [2024-11-25 03:30:00,235 INFO L75 FloydHoareUtils]: For program point main_ERROR#1(line 641) no Hoare annotation was computed. [2024-11-25 03:30:00,236 INFO L77 FloydHoareUtils]: At program point L629-3(lines 629 632) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-25 03:30:00,250 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-25 03:30:00,256 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-25 03:30:00,257 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-25 03:30:00,257 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-25 03:30:00,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:30:00 ImpRootNode [2024-11-25 03:30:00,258 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:30:00,258 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:30:00,258 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:30:00,258 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:30:00,260 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:29:57" (3/4) ... [2024-11-25 03:30:00,263 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 03:30:00,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2024-11-25 03:30:00,272 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-25 03:30:00,273 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-25 03:30:00,273 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-25 03:30:00,273 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 03:30:00,358 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:30:00,359 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:30:00,359 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:30:00,360 INFO L158 Benchmark]: Toolchain (without parser) took 4249.40ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 107.0MB in the end (delta: 11.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-11-25 03:30:00,360 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:30:00,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.27ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 99.9MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:30:00,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.75ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 98.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:30:00,361 INFO L158 Benchmark]: Boogie Preprocessor took 35.78ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:30:00,361 INFO L158 Benchmark]: RCFGBuilder took 583.53ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 76.9MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 03:30:00,361 INFO L158 Benchmark]: CodeCheck took 2909.71ms. Allocated memory is still 142.6MB. Free memory was 76.9MB in the beginning and 113.2MB in the end (delta: -36.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:30:00,362 INFO L158 Benchmark]: Witness Printer took 100.59ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 107.0MB in the end (delta: 6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:30:00,364 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: 2.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 269 IncrementalHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 45 mSDtfsCounter, 269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 540 GetRequests, 484 SyntacticMatches, 18 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 15/34 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: 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: 633]: Loop Invariant Derived loop invariant: (1 <= i) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: (2 <= len) - 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 0.47ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.27ms. Allocated memory is still 142.6MB. Free memory was 117.9MB in the beginning and 99.9MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.75ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 98.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.78ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 96.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 583.53ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 76.9MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 2909.71ms. Allocated memory is still 142.6MB. Free memory was 76.9MB in the beginning and 113.2MB in the end (delta: -36.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 100.59ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 107.0MB in the end (delta: 6.2MB). There was no memory consumed. 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! [2024-11-25 03:30:00,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_437382e1-edf7-41bd-ad8f-93b46fc1bf44/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