./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007b.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_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b --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 a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:20:16,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:20:16,745 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:20:16,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:20:16,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:20:16,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:20:16,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:20:16,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:20:16,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:20:16,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:20:16,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:20:16,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:20:16,770 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:20:16,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:20:16,771 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:20:16,771 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:20:16,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:20:16,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:20:16,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:20:16,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:20:16,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:20:16,772 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:20:16,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:20:16,772 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_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b 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 -> a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 [2024-12-06 03:20:17,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:20:17,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:20:17,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:20:17,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:20:17,019 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:20:17,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/loop-lit/gj2007b.i [2024-12-06 03:20:19,654 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/data/0c8feed2d/a3c38de1778c47ddb4206b0cf447cc95/FLAG85172a01f [2024-12-06 03:20:19,835 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:20:19,836 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/sv-benchmarks/c/loop-lit/gj2007b.i [2024-12-06 03:20:19,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/data/0c8feed2d/a3c38de1778c47ddb4206b0cf447cc95/FLAG85172a01f [2024-12-06 03:20:19,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/data/0c8feed2d/a3c38de1778c47ddb4206b0cf447cc95 [2024-12-06 03:20:19,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:20:19,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:20:19,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:20:19,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:20:19,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:20:19,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:20:19" (1/1) ... [2024-12-06 03:20:19,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7f9f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:19, skipping insertion in model container [2024-12-06 03:20:19,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:20:19" (1/1) ... [2024-12-06 03:20:19,893 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:20:20,057 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_0073672a-329c-4a9d-af25-17e5c2e7cf09/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2024-12-06 03:20:20,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:20:20,084 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:20:20,096 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_0073672a-329c-4a9d-af25-17e5c2e7cf09/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2024-12-06 03:20:20,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:20:20,114 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:20:20,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20 WrapperNode [2024-12-06 03:20:20,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:20:20,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:20:20,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:20:20,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:20:20,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,145 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2024-12-06 03:20:20,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:20:20,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:20:20,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:20:20,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:20:20,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,163 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:20:20,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:20:20,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:20:20,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:20:20,166 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:20:20,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:20:20,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:20:20,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:20:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:20:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:20:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:20:20,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:20:20,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 03:20:20,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 03:20:20,297 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:20:20,300 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:20:20,405 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-06 03:20:20,405 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:20:20,441 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:20:20,441 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 03:20:20,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:20:20 BoogieIcfgContainer [2024-12-06 03:20:20,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:20:20,442 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:20:20,443 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:20:20,452 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:20:20,452 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:20:20" (1/1) ... [2024-12-06 03:20:20,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:20:20,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:20:20,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-12-06 03:20:20,510 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-12-06 03:20:20,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 03:20:20,511 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:20:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:20:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:20:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:20:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:20:20,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 20 transitions. [2024-12-06 03:20:20,877 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-12-06 03:20:20,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 03:20:20,879 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:20:20,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:20:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:20:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:20:21,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:20:21,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 25 transitions. [2024-12-06 03:20:21,139 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2024-12-06 03:20:21,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:20:21,140 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:20:21,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:20:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:20:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:20:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:20:21,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 18 transitions. [2024-12-06 03:20:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-12-06 03:20:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:20:21,443 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:20:21,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:20:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:20:21,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:20:21,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:20:21,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 26 transitions. [2024-12-06 03:20:21,711 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2024-12-06 03:20:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 03:20:21,711 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:20:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:20:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:20:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:20:22,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:20:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 30 transitions. [2024-12-06 03:20:22,009 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2024-12-06 03:20:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 03:20:22,010 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:20:22,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:20:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:20:22,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:20:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:20:22,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 16 states and 25 transitions. [2024-12-06 03:20:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2024-12-06 03:20:22,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 03:20:22,443 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-12-06 03:20:22,449 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 03:20:22,558 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 03:20:22,558 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 03:20:22,558 INFO L77 FloydHoareUtils]: At program point L34(line 34) the Hoare annotation is: true [2024-12-06 03:20:22,558 INFO L77 FloydHoareUtils]: At program point L28-3(lines 28 33) the Hoare annotation is: (or (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~m~0#1| 0)) (and (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|))) [2024-12-06 03:20:22,558 INFO L77 FloydHoareUtils]: At program point L28-4(lines 28 33) the Hoare annotation is: (or (<= |ULTIMATE.start_main_~n~0#1| 0) (and (< 0 (+ |ULTIMATE.start_main_~m~0#1| 1)) (< |ULTIMATE.start_main_~m~0#1| 1)) (and (<= 1 |ULTIMATE.start_main_~m~0#1|) (< |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|))) [2024-12-06 03:20:22,558 INFO L77 FloydHoareUtils]: At program point L35(line 35) the Hoare annotation is: true [2024-12-06 03:20:22,558 INFO L77 FloydHoareUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2024-12-06 03:20:22,559 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: true [2024-12-06 03:20:22,562 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 17 22) the Hoare annotation is: true [2024-12-06 03:20:22,562 INFO L77 FloydHoareUtils]: At program point L19(line 19) the Hoare annotation is: true [2024-12-06 03:20:22,562 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: true [2024-12-06 03:20:22,563 INFO L77 FloydHoareUtils]: At program point L18(lines 18 20) the Hoare annotation is: true [2024-12-06 03:20:22,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:20:22 ImpRootNode [2024-12-06 03:20:22,577 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:20:22,577 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:20:22,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:20:22,578 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:20:22,578 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:20:20" (3/4) ... [2024-12-06 03:20:22,580 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 03:20:22,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-06 03:20:22,585 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-06 03:20:22,586 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-06 03:20:22,586 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 03:20:22,586 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 03:20:22,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:20:22,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:20:22,638 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:20:22,639 INFO L158 Benchmark]: Toolchain (without parser) took 2769.81ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 65.9MB in the end (delta: 52.5MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2024-12-06 03:20:22,639 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:20:22,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.79ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 107.2MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:20:22,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.02ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 106.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:20:22,640 INFO L158 Benchmark]: Boogie Preprocessor took 17.86ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 105.6MB in the end (delta: 596.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:20:22,640 INFO L158 Benchmark]: RCFGBuilder took 277.26ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 94.9MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:20:22,641 INFO L158 Benchmark]: CodeCheck took 2134.48ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 70.8MB in the end (delta: 23.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-12-06 03:20:22,641 INFO L158 Benchmark]: Witness Printer took 60.87ms. Allocated memory is still 142.6MB. Free memory was 70.8MB in the beginning and 65.9MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:20:22,643 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 117 mSolverCounterUnsat, 54 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 544 GetRequests, 485 SyntacticMatches, 9 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 6/14 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: 19]: 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: 28]: Loop Invariant Derived loop invariant: (((0 <= x) && (m == 0)) || (((0 <= m) && (1 <= x)) && (m < n))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.79ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 107.2MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.02ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 106.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.86ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 105.6MB in the end (delta: 596.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.26ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 94.9MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2134.48ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 70.8MB in the end (delta: 23.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Witness Printer took 60.87ms. Allocated memory is still 142.6MB. Free memory was 70.8MB in the beginning and 65.9MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 03:20:22,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0073672a-329c-4a9d-af25-17e5c2e7cf09/bin/ukojak-verify-CZk0znPC7b/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