./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 33d006375056e7e3c58d58b776bed0fedce081ec4ff9e691f038a741177fe7dd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:12:50,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:12:50,249 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:12:50,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:12:50,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:12:50,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:12:50,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:12:50,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:12:50,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:12:50,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:12:50,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:12:50,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:12:50,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:12:50,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:12:50,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:12:50,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:12:50,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:12:50,299 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:12:50,299 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:12:50,299 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:12:50,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:12:50,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:12:50,304 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:12:50,305 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:12:50,305 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:12:50,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:12:50,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:12:50,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:12:50,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:12:50,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:12:50,307 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:12:50,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:12:50,307 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_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33d006375056e7e3c58d58b776bed0fedce081ec4ff9e691f038a741177fe7dd [2024-11-08 22:12:50,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:12:50,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:12:50,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:12:50,628 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:12:50,628 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:12:50,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i Unable to find full path for "g++" [2024-11-08 22:12:52,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:12:52,908 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:12:52,910 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2024-11-08 22:12:52,921 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/data/ecbd4e7df/8bb4473a40c0406e9a9d8a49988dc8b5/FLAG3b280f260 [2024-11-08 22:12:52,948 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/data/ecbd4e7df/8bb4473a40c0406e9a9d8a49988dc8b5 [2024-11-08 22:12:52,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:12:52,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:12:52,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:12:52,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:12:52,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:12:52,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:12:52" (1/1) ... [2024-11-08 22:12:52,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e1ec4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:52, skipping insertion in model container [2024-11-08 22:12:52,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:12:52" (1/1) ... [2024-11-08 22:12:52,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:12:53,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:12:53,252 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:12:53,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:12:53,287 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:12:53,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53 WrapperNode [2024-11-08 22:12:53,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:12:53,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:12:53,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:12:53,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:12:53,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,321 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-08 22:12:53,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:12:53,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:12:53,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:12:53,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:12:53,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:12:53,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:12:53,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:12:53,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:12:53,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:12:53,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:12:53,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:12:53,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:12:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:12:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-11-08 22:12:53,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-11-08 22:12:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 22:12:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:12:53,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:12:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:12:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:12:53,511 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:12:53,513 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:12:53,691 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 22:12:53,691 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:12:53,711 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:12:53,712 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:12:53,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:12:53 BoogieIcfgContainer [2024-11-08 22:12:53,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:12:53,713 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:12:53,713 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:12:53,725 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:12:53,725 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:12:53" (1/1) ... [2024-11-08 22:12:53,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:12:53,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:12:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2024-11-08 22:12:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-08 22:12:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:12:53,802 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:12:53,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:12:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:12:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:12:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:12:54,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-11-08 22:12:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-08 22:12:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:12:54,430 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:12:54,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:12:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:12:54,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:12:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:12:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 29 transitions. [2024-11-08 22:12:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2024-11-08 22:12:54,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 22:12:54,977 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:12:54,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:12:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:12:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:12:55,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:12:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 27 transitions. [2024-11-08 22:12:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-11-08 22:12:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 22:12:55,301 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:12:55,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:12:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:12:55,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:12:57,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:12:57,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 28 states and 35 transitions. [2024-11-08 22:12:57,003 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-11-08 22:12:57,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 22:12:57,006 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:12:57,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:12:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:12:57,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:12:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:12:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 23 states and 28 transitions. [2024-11-08 22:12:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-11-08 22:12:57,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 22:12:57,739 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:12:57,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:12:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:12:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 22:12:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:12:58,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 19 states and 23 transitions. [2024-11-08 22:12:58,375 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-08 22:12:58,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 22:12:58,375 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2024-11-08 22:12:58,388 INFO L729 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2024-11-08 22:12:58,465 INFO L77 FloydHoareUtils]: At program point L15(line 15) the Hoare annotation is: (<= (select (select |#memory_int| rec_~p.base) rec_~p.offset) 2147483646) [2024-11-08 22:12:58,465 INFO L77 FloydHoareUtils]: At program point L14(line 14) the Hoare annotation is: (and (<= 0 |rec_#t~post4|) (<= |rec_#t~post4| 2147483647)) [2024-11-08 22:12:58,465 INFO L77 FloydHoareUtils]: At program point L15-1(line 15) the Hoare annotation is: (<= (+ |rec_#t~ret5| 1) 0) [2024-11-08 22:12:58,465 INFO L77 FloydHoareUtils]: At program point L14-1(line 14) the Hoare annotation is: (<= |rec_#t~post4| 2147483647) [2024-11-08 22:12:58,466 INFO L77 FloydHoareUtils]: At program point recFINAL(lines 8 16) the Hoare annotation is: (<= (+ |rec_#res| 1) 0) [2024-11-08 22:12:58,466 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 8 16) the Hoare annotation is: (and (<= (select (select |#memory_int| |rec_#in~p.base|) |rec_#in~p.offset|) 2147483647) (= |#memory_int| |old(#memory_int)|)) [2024-11-08 22:12:58,466 INFO L77 FloydHoareUtils]: At program point L9(lines 9 13) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| rec_~p.base) rec_~p.offset))) (and (= .cse0 |rec_#t~mem1|) (= |#memory_int| |old(#memory_int)|) (= |rec_#in~p.base| rec_~p.base) (= |rec_#in~p.offset| rec_~p.offset) (<= .cse0 2147483647))) [2024-11-08 22:12:58,466 INFO L77 FloydHoareUtils]: At program point recEXIT(lines 8 16) the Hoare annotation is: (<= (+ |rec_#res| 1) 0) [2024-11-08 22:12:58,466 INFO L75 FloydHoareUtils]: For program point recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2024-11-08 22:12:58,467 INFO L75 FloydHoareUtils]: For program point recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2024-11-08 22:12:58,467 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) the Hoare annotation is: true [2024-11-08 22:12:58,467 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 22:12:58,467 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) the Hoare annotation is: true [2024-11-08 22:12:58,467 INFO L77 FloydHoareUtils]: At program point L23(line 23) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= (select (select |#memory_int| |ULTIMATE.start_main_~op~0#1.base|) |ULTIMATE.start_main_~op~0#1.offset|) 2147483647)) [2024-11-08 22:12:58,467 INFO L77 FloydHoareUtils]: At program point L23-1(line 23) the Hoare annotation is: true [2024-11-08 22:12:58,471 INFO L77 FloydHoareUtils]: At program point L23-2(line 23) the Hoare annotation is: true [2024-11-08 22:12:58,472 INFO L77 FloydHoareUtils]: At program point L23-3(line 23) the Hoare annotation is: true [2024-11-08 22:12:58,472 INFO L77 FloydHoareUtils]: At program point L20-1(lines 20 24) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647)) [2024-11-08 22:12:58,472 INFO L77 FloydHoareUtils]: At program point L18(lines 18 25) the Hoare annotation is: true [2024-11-08 22:12:58,472 INFO L77 FloydHoareUtils]: At program point L20-3(lines 20 24) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| 2147483647) [2024-11-08 22:12:58,473 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 22:12:58,501 WARN L162 FloydHoareUtils]: Requires clause for rec contained old-variable. Original clause: (and (<= (select (select |#memory_int| |rec_#in~p.base|) |rec_#in~p.offset|) 2147483647) (= |#memory_int| |old(#memory_int)|)) Eliminated clause: (<= (select (select |#memory_int| |rec_#in~p.base|) |rec_#in~p.offset|) 2147483647) [2024-11-08 22:12:58,504 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-08 22:12:58,509 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-08 22:12:58,510 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-11-08 22:12:58,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:12:58 ImpRootNode [2024-11-08 22:12:58,515 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:12:58,516 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:12:58,516 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:12:58,516 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:12:58,516 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:12:53" (3/4) ... [2024-11-08 22:12:58,519 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 22:12:58,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure rec [2024-11-08 22:12:58,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-08 22:12:58,527 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 22:12:58,527 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 22:12:58,527 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:12:58,626 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:12:58,626 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 22:12:58,626 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:12:58,627 INFO L158 Benchmark]: Toolchain (without parser) took 5673.81ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 113.9MB in the beginning and 77.3MB in the end (delta: 36.5MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2024-11-08 22:12:58,627 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory was 79.9MB in the beginning and 79.9MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:12:58,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.60ms. Allocated memory is still 148.9MB. Free memory was 113.9MB in the beginning and 102.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:12:58,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.25ms. Allocated memory is still 148.9MB. Free memory was 102.0MB in the beginning and 100.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:12:58,629 INFO L158 Benchmark]: Boogie Preprocessor took 33.65ms. Allocated memory is still 148.9MB. Free memory was 100.8MB in the beginning and 99.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:12:58,629 INFO L158 Benchmark]: RCFGBuilder took 356.15ms. Allocated memory is still 148.9MB. Free memory was 99.6MB in the beginning and 88.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 22:12:58,630 INFO L158 Benchmark]: CodeCheck took 4801.66ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 88.3MB in the beginning and 81.6MB in the end (delta: 6.8MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-11-08 22:12:58,630 INFO L158 Benchmark]: Witness Printer took 110.83ms. Allocated memory is still 180.4MB. Free memory was 81.6MB in the beginning and 77.3MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:12:58,632 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, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 189 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 504 IncrementalHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 108 mSDtfsCounter, 504 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 646 GetRequests, 557 SyntacticMatches, 17 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 8/8 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (i <= 2147483647) - ProcedureContractResult [Line: 8]: Procedure Contract for rec Derived contract for procedure rec. Ensures: (((long) \result + 1) <= 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory was 79.9MB in the beginning and 79.9MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.60ms. Allocated memory is still 148.9MB. Free memory was 113.9MB in the beginning and 102.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.25ms. Allocated memory is still 148.9MB. Free memory was 102.0MB in the beginning and 100.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.65ms. Allocated memory is still 148.9MB. Free memory was 100.8MB in the beginning and 99.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.15ms. Allocated memory is still 148.9MB. Free memory was 99.6MB in the beginning and 88.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 4801.66ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 88.3MB in the beginning and 81.6MB in the end (delta: 6.8MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Witness Printer took 110.83ms. Allocated memory is still 180.4MB. Free memory was 81.6MB in the beginning and 77.3MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[#in~p!base,]]] RESULT: Ultimate proved your program to be correct! [2024-11-08 22:12:58,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a0403f1-ec1a-4adc-aea7-8a599d00a4de/bin/ukojak-verify-ImItNfHLgk/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