./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark51_polynomial.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark51_polynomial.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL --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 aa85058e2265737f535eb1fe2c40b3792241244c90bfe02ec1cb86f59e478fdf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:05:29,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:05:29,319 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:05:29,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:05:29,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:05:29,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:05:29,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:05:29,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:05:29,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:05:29,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:05:29,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:05:29,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:05:29,364 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:05:29,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:05:29,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:05:29,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:05:29,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:05:29,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:05:29,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:05:29,369 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:05:29,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:05:29,370 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:05:29,371 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:05:29,372 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:05:29,372 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:05:29,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:05:29,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:05:29,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:05:29,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:05:29,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:05:29,375 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:05:29,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:05:29,376 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:05:29,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa85058e2265737f535eb1fe2c40b3792241244c90bfe02ec1cb86f59e478fdf [2023-11-19 03:05:29,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:05:29,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:05:29,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:05:29,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:05:29,664 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:05:29,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-zilu/benchmark51_polynomial.i [2023-11-19 03:05:32,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:05:33,090 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:05:33,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/sv-benchmarks/c/loop-zilu/benchmark51_polynomial.i [2023-11-19 03:05:33,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/data/901af1719/9af71f691ea34caaa44c838f61f30d78/FLAGc77f9affb [2023-11-19 03:05:33,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/data/901af1719/9af71f691ea34caaa44c838f61f30d78 [2023-11-19 03:05:33,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:05:33,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:05:33,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:05:33,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:05:33,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:05:33,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b3bafdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33, skipping insertion in model container [2023-11-19 03:05:33,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:05:33,310 WARN L240 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_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/sv-benchmarks/c/loop-zilu/benchmark51_polynomial.i[872,885] [2023-11-19 03:05:33,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:05:33,343 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:05:33,353 WARN L240 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_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/sv-benchmarks/c/loop-zilu/benchmark51_polynomial.i[872,885] [2023-11-19 03:05:33,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:05:33,372 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:05:33,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33 WrapperNode [2023-11-19 03:05:33,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:05:33,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:05:33,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:05:33,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:05:33,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,417 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-11-19 03:05:33,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:05:33,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:05:33,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:05:33,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:05:33,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,442 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:05:33,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:05:33,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:05:33,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:05:33,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:05:33,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:05:33,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:05:33,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:05:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:05:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:05:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:05:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:05:33,644 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:05:33,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:05:33,840 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:05:33,910 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:05:33,910 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:05:33,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:05:33 BoogieIcfgContainer [2023-11-19 03:05:33,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:05:33,916 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:05:33,917 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:05:33,929 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:05:33,930 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:05:33" (1/1) ... [2023-11-19 03:05:33,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:05:33,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:05:33,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2023-11-19 03:05:33,993 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2023-11-19 03:05:33,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:05:33,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:05:33,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:05:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:05:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:05:34,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:05:34,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2023-11-19 03:05:34,151 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-19 03:05:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:05:34,151 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:05:34,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:05:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:05:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:05:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:05:34,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-19 03:05:34,423 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-19 03:05:34,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:05:34,424 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-11-19 03:05:34,433 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:05:34,458 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:05:34,462 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-19 03:05:34,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:05:34 ImpRootNode [2023-11-19 03:05:34,466 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:05:34,467 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:05:34,467 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:05:34,467 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:05:34,468 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:05:33" (3/4) ... [2023-11-19 03:05:34,471 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:05:34,478 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 03:05:34,479 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 03:05:34,479 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:05:34,479 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:05:34,581 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:05:34,581 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:05:34,582 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:05:34,583 INFO L158 Benchmark]: Toolchain (without parser) took 1463.01ms. Allocated memory was 113.2MB in the beginning and 222.3MB in the end (delta: 109.1MB). Free memory was 69.4MB in the beginning and 171.8MB in the end (delta: -102.4MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-11-19 03:05:34,583 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:05:34,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.62ms. Allocated memory is still 113.2MB. Free memory was 69.2MB in the beginning and 58.9MB in the end (delta: 10.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:05:34,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.41ms. Allocated memory is still 113.2MB. Free memory was 58.9MB in the beginning and 57.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:05:34,590 INFO L158 Benchmark]: Boogie Preprocessor took 32.42ms. Allocated memory is still 113.2MB. Free memory was 57.3MB in the beginning and 56.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:05:34,591 INFO L158 Benchmark]: RCFGBuilder took 463.41ms. Allocated memory was 113.2MB in the beginning and 222.3MB in the end (delta: 109.1MB). Free memory was 56.2MB in the beginning and 192.3MB in the end (delta: -136.0MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-11-19 03:05:34,591 INFO L158 Benchmark]: CodeCheck took 549.88ms. Allocated memory is still 222.3MB. Free memory was 192.2MB in the beginning and 176.0MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2023-11-19 03:05:34,592 INFO L158 Benchmark]: Witness Printer took 114.95ms. Allocated memory is still 222.3MB. Free memory was 176.0MB in the beginning and 171.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:05:34,594 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: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 20 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((0 <= x) && (x <= 50)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.62ms. Allocated memory is still 113.2MB. Free memory was 69.2MB in the beginning and 58.9MB in the end (delta: 10.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.41ms. Allocated memory is still 113.2MB. Free memory was 58.9MB in the beginning and 57.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.42ms. Allocated memory is still 113.2MB. Free memory was 57.3MB in the beginning and 56.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.41ms. Allocated memory was 113.2MB in the beginning and 222.3MB in the end (delta: 109.1MB). Free memory was 56.2MB in the beginning and 192.3MB in the end (delta: -136.0MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * CodeCheck took 549.88ms. Allocated memory is still 222.3MB. Free memory was 192.2MB in the beginning and 176.0MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Witness Printer took 114.95ms. Allocated memory is still 222.3MB. Free memory was 176.0MB in the beginning and 171.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:05:34,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b90ff5-4287-4ebf-9906-a7ccf0ac54f2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE