./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-1.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_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/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_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/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_989ae878-97d0-4301-b71e-8834ee3b24bb/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 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:12:49,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:12:49,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 00:12:49,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:12:49,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:12:49,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:12:49,608 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:12:49,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:12:49,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:12:49,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:12:49,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:12:49,610 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:12:49,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:12:49,610 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:12:49,610 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:12:49,610 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:12:49,610 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:12:49,610 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:12:49,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:12:49,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:12:49,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:12:49,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:12:49,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:12:49,611 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:12:49,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:12:49,611 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_989ae878-97d0-4301-b71e-8834ee3b24bb/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 -> 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 [2024-12-06 00:12:49,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:12:49,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:12:49,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:12:49,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:12:49,856 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:12:49,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/loop-acceleration/array_3-1.i [2024-12-06 00:12:52,447 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/data/ddf7f5865/66bf69d2c6b14d51884c53355cd0ad0d/FLAGdacc8cbb6 [2024-12-06 00:12:52,640 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:12:52,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/sv-benchmarks/c/loop-acceleration/array_3-1.i [2024-12-06 00:12:52,646 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/data/ddf7f5865/66bf69d2c6b14d51884c53355cd0ad0d/FLAGdacc8cbb6 [2024-12-06 00:12:53,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/data/ddf7f5865/66bf69d2c6b14d51884c53355cd0ad0d [2024-12-06 00:12:53,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:12:53,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:12:53,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:12:53,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:12:53,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:12:53,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f2fd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53, skipping insertion in model container [2024-12-06 00:12:53,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:12:53,173 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_989ae878-97d0-4301-b71e-8834ee3b24bb/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2024-12-06 00:12:53,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:12:53,193 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:12:53,203 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_989ae878-97d0-4301-b71e-8834ee3b24bb/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2024-12-06 00:12:53,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:12:53,219 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:12:53,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53 WrapperNode [2024-12-06 00:12:53,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:12:53,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:12:53,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:12:53,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:12:53,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,245 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2024-12-06 00:12:53,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:12:53,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:12:53,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:12:53,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:12:53,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,257 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:12:53,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:12:53,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:12:53,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:12:53,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:12:53,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:12:53,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:12:53,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:12:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:12:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:12:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 00:12:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 00:12:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:12:53,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:12:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 00:12:53,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 00:12:53,369 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:12:53,370 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:12:53,455 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 00:12:53,456 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:12:53,480 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:12:53,480 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 00:12:53,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:12:53 BoogieIcfgContainer [2024-12-06 00:12:53,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:12:53,481 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:12:53,481 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:12:53,487 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:12:53,488 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:12:53" (1/1) ... [2024-12-06 00:12:53,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:12:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:12:53,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2024-12-06 00:12:53,539 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2024-12-06 00:12:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 00:12:53,541 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:12:53,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:12:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:12:53,640 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 00:12:53,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:12:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2024-12-06 00:12:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-12-06 00:12:53,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 00:12:53,656 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:12:53,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:12:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:12:53,714 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 00:12:53,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:12:53,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2024-12-06 00:12:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2024-12-06 00:12:53,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:12:53,738 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:12:53,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:12:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:12:53,815 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 00:12:53,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:12:53,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2024-12-06 00:12:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2024-12-06 00:12:53,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 00:12:53,864 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:12:53,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:12:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:12:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 00:12:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:12:54,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2024-12-06 00:12:54,028 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2024-12-06 00:12:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 00:12:54,029 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:12:54,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:12:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:12:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 00:12:54,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:12:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2024-12-06 00:12:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2024-12-06 00:12:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 00:12:54,131 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:12:54,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:12:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:12:54,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 00:12:54,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:12:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2024-12-06 00:12:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2024-12-06 00:12:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 00:12:54,254 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:12:54,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:12:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:12:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 00:12:54,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:12:54,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2024-12-06 00:12:54,445 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2024-12-06 00:12:54,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 00:12:54,445 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2024-12-06 00:12:54,453 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 00:12:54,499 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 00:12:54,499 INFO L77 FloydHoareUtils]: At program point L15(lines 15 17) the Hoare annotation is: (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) [2024-12-06 00:12:54,499 INFO L77 FloydHoareUtils]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2024-12-06 00:12:54,499 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 00:12:54,500 INFO L77 FloydHoareUtils]: At program point L28-1(lines 28 32) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| 1023) [2024-12-06 00:12:54,500 INFO L77 FloydHoareUtils]: At program point L28-2(lines 28 32) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| 1023) [2024-12-06 00:12:54,500 INFO L77 FloydHoareUtils]: At program point L28-4(lines 28 32) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| 1023) [2024-12-06 00:12:54,500 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2024-12-06 00:12:54,500 INFO L77 FloydHoareUtils]: At program point L28-5(lines 28 32) the Hoare annotation is: (< |ULTIMATE.start_main_~i~0#1| 1025) [2024-12-06 00:12:54,500 INFO L77 FloydHoareUtils]: At program point L24-3(lines 24 26) the Hoare annotation is: true [2024-12-06 00:12:54,500 INFO L75 FloydHoareUtils]: For program point L16(line 16) no Hoare annotation was computed. [2024-12-06 00:12:54,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:12:54 ImpRootNode [2024-12-06 00:12:54,510 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:12:54,510 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:12:54,510 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:12:54,511 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:12:54,511 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:12:53" (3/4) ... [2024-12-06 00:12:54,513 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 00:12:54,518 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-12-06 00:12:54,518 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-06 00:12:54,518 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 00:12:54,519 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-06 00:12:54,579 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 00:12:54,579 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 00:12:54,579 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:12:54,580 INFO L158 Benchmark]: Toolchain (without parser) took 1547.80ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 81.2MB in the end (delta: 36.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-12-06 00:12:54,580 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:12:54,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.71ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 106.7MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:12:54,581 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.12ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 105.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:12:54,581 INFO L158 Benchmark]: Boogie Preprocessor took 16.95ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.8MB in the end (delta: 825.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:12:54,581 INFO L158 Benchmark]: RCFGBuilder took 216.67ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 93.8MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:12:54,581 INFO L158 Benchmark]: CodeCheck took 1029.14ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 85.8MB in the end (delta: 8.0MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2024-12-06 00:12:54,582 INFO L158 Benchmark]: Witness Printer took 68.74ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 81.2MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:12:54,583 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 128 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 209 IncrementalHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 84 mSDtfsCounter, 209 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 526 GetRequests, 503 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 21/25 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: 16]: 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: (i <= 1023) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.71ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 106.7MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.12ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 105.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.95ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 104.8MB in the end (delta: 825.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.67ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 93.8MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1029.14ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 85.8MB in the end (delta: 8.0MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 68.74ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 81.2MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 00:12:54,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ae878-97d0-4301-b71e-8834ee3b24bb/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