./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-invariants/recursified_eq2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/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_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_loop-invariants/recursified_eq2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk --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 cc91ced7bcccf661129c3f4bf0d427a9a72d34c82f3ff7a23345948320ae0e49 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:36:49,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:36:49,911 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:36:49,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:36:49,918 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:36:49,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:36:49,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:36:49,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:36:49,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:36:49,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:36:49,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:36:49,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:36:49,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:36:49,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:36:49,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:36:49,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:36:49,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:36:49,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:36:49,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:36:49,963 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:36:49,963 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:36:49,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:36:49,964 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:36:49,964 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:36:49,965 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:36:49,965 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:36:49,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:36:49,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:36:49,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:36:49,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:36:49,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:36:49,967 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:36:49,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:36:49,967 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_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc91ced7bcccf661129c3f4bf0d427a9a72d34c82f3ff7a23345948320ae0e49 [2024-11-08 22:36:50,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:36:50,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:36:50,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:36:50,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:36:50,298 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:36:50,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/recursified_loop-invariants/recursified_eq2.c Unable to find full path for "g++" [2024-11-08 22:36:52,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:36:52,581 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:36:52,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/sv-benchmarks/c/recursified_loop-invariants/recursified_eq2.c [2024-11-08 22:36:52,588 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/data/1841440a3/b09d9be26a884e76bff442f2db7df491/FLAGa42e76c7d [2024-11-08 22:36:52,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/data/1841440a3/b09d9be26a884e76bff442f2db7df491 [2024-11-08 22:36:52,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:36:52,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:36:52,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:36:52,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:36:52,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:36:52,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c32e4c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52, skipping insertion in model container [2024-11-08 22:36:52,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:36:52,839 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_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/sv-benchmarks/c/recursified_loop-invariants/recursified_eq2.c[973,986] [2024-11-08 22:36:52,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:36:52,861 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:36:52,871 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_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/sv-benchmarks/c/recursified_loop-invariants/recursified_eq2.c[973,986] [2024-11-08 22:36:52,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:36:52,891 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:36:52,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52 WrapperNode [2024-11-08 22:36:52,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:36:52,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:36:52,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:36:52,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:36:52,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,922 INFO L138 Inliner]: procedures = 15, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2024-11-08 22:36:52,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:36:52,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:36:52,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:36:52,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:36:52,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,934 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:36:52,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:36:52,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:36:52,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:36:52,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:36:52" (1/1) ... [2024-11-08 22:36:52,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:36:52,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:36:52,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:36:52,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:36:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:36:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:36:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:36:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:36:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_16_to_18_0 [2024-11-08 22:36:53,016 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_16_to_18_0 [2024-11-08 22:36:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:36:53,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:36:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:36:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:36:53,104 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:36:53,106 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:36:53,318 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-08 22:36:53,318 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:36:53,367 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:36:53,367 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:36:53,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:36:53 BoogieIcfgContainer [2024-11-08 22:36:53,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:36:53,372 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:36:53,372 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:36:53,382 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:36:53,382 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:36:53" (1/1) ... [2024-11-08 22:36:53,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:36:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:36:53,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2024-11-08 22:36:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2024-11-08 22:36:53,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:36:53,454 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:36:53,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:36:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:36:54,020 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 22:36:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:36:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 22 transitions. [2024-11-08 22:36:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2024-11-08 22:36:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 22:36:54,161 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:36:54,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:36:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:36:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 22:36:55,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:36:55,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 13 states and 17 transitions. [2024-11-08 22:36:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2024-11-08 22:36:55,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 22:36:55,724 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2024-11-08 22:36:55,732 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-08 22:36:55,802 INFO L77 FloydHoareUtils]: At program point L46(line 46) the Hoare annotation is: (and (= func_to_recursive_line_16_to_18_0_~y.base |func_to_recursive_line_16_to_18_0_#in~y.base|) (= func_to_recursive_line_16_to_18_0_~z.offset |func_to_recursive_line_16_to_18_0_#in~z.offset|) (= func_to_recursive_line_16_to_18_0_~z.base |func_to_recursive_line_16_to_18_0_#in~z.base|) (let ((.cse0 (= |func_to_recursive_line_16_to_18_0_#in~y.offset| func_to_recursive_line_16_to_18_0_~y.offset))) (or (and .cse0 (= (select (select |#memory_int| func_to_recursive_line_16_to_18_0_~z.base) func_to_recursive_line_16_to_18_0_~z.offset) (select (select |#memory_int| func_to_recursive_line_16_to_18_0_~y.base) func_to_recursive_line_16_to_18_0_~y.offset))) (and .cse0 (not (= (select (select |old(#memory_int)| func_to_recursive_line_16_to_18_0_~z.base) func_to_recursive_line_16_to_18_0_~z.offset) (select (select |old(#memory_int)| func_to_recursive_line_16_to_18_0_~y.base) func_to_recursive_line_16_to_18_0_~y.offset)))) (= func_to_recursive_line_16_to_18_0_~y.base func_to_recursive_line_16_to_18_0_~z.base)))) [2024-11-08 22:36:55,802 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 38 51) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2024-11-08 22:36:55,802 INFO L77 FloydHoareUtils]: At program point L40(lines 40 50) the Hoare annotation is: (and (= func_to_recursive_line_16_to_18_0_~y.base |func_to_recursive_line_16_to_18_0_#in~y.base|) (= |#memory_int| |old(#memory_int)|) (or (= |func_to_recursive_line_16_to_18_0_#in~y.offset| func_to_recursive_line_16_to_18_0_~y.offset) (= func_to_recursive_line_16_to_18_0_~y.base func_to_recursive_line_16_to_18_0_~z.base)) (= func_to_recursive_line_16_to_18_0_~z.offset |func_to_recursive_line_16_to_18_0_#in~z.offset|) (= func_to_recursive_line_16_to_18_0_~z.base |func_to_recursive_line_16_to_18_0_#in~z.base|)) [2024-11-08 22:36:55,802 INFO L77 FloydHoareUtils]: At program point L40-1(lines 38 51) the Hoare annotation is: true [2024-11-08 22:36:55,803 INFO L77 FloydHoareUtils]: At program point func_to_recursive_line_16_to_18_0EXIT(lines 38 51) the Hoare annotation is: true [2024-11-08 22:36:55,803 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 22:36:55,803 INFO L77 FloydHoareUtils]: At program point L59(line 59) the Hoare annotation is: (and (= (select (select |#memory_int| |ULTIMATE.start_main_~#z~0#1.base|) |ULTIMATE.start_main_~#z~0#1.offset|) (select (select |#memory_int| |ULTIMATE.start_main_~#y~0#1.base|) |ULTIMATE.start_main_~#y~0#1.offset|)) (not (= |ULTIMATE.start_main_~#z~0#1.base| |ULTIMATE.start_main_~#y~0#1.base|))) [2024-11-08 22:36:55,803 INFO L77 FloydHoareUtils]: At program point L59-1(line 59) the Hoare annotation is: true [2024-11-08 22:36:55,803 INFO L77 FloydHoareUtils]: At program point L25(lines 25 29) the Hoare annotation is: true [2024-11-08 22:36:55,804 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) the Hoare annotation is: true [2024-11-08 22:36:55,804 INFO L77 FloydHoareUtils]: At program point L23(lines 23 34) the Hoare annotation is: true [2024-11-08 22:36:55,804 INFO L77 FloydHoareUtils]: At program point L23-2(lines 21 36) the Hoare annotation is: true [2024-11-08 22:36:55,804 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 22:36:55,821 WARN L162 FloydHoareUtils]: Requires clause for func_to_recursive_line_16_to_18_0 contained old-variable. Original clause: (= |#memory_int| |old(#memory_int)|) Eliminated clause: true [2024-11-08 22:36:55,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:36:55 ImpRootNode [2024-11-08 22:36:55,826 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:36:55,826 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:36:55,826 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:36:55,827 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:36:55,827 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:36:53" (3/4) ... [2024-11-08 22:36:55,831 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 22:36:55,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_16_to_18_0 [2024-11-08 22:36:55,840 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-08 22:36:55,841 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-08 22:36:55,841 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 22:36:55,841 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:36:55,841 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 22:36:55,930 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 22:36:55,931 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 22:36:55,931 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:36:55,932 INFO L158 Benchmark]: Toolchain (without parser) took 3319.92ms. Allocated memory is still 159.4MB. Free memory was 127.1MB in the beginning and 56.3MB in the end (delta: 70.8MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2024-11-08 22:36:55,932 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 159.4MB. Free memory is still 131.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:36:55,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.82ms. Allocated memory is still 159.4MB. Free memory was 127.1MB in the beginning and 114.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:36:55,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.75ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 113.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:36:55,933 INFO L158 Benchmark]: Boogie Preprocessor took 20.30ms. Allocated memory is still 159.4MB. Free memory was 113.1MB in the beginning and 112.2MB in the end (delta: 881.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:36:55,934 INFO L158 Benchmark]: RCFGBuilder took 423.69ms. Allocated memory is still 159.4MB. Free memory was 112.2MB in the beginning and 99.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:36:55,934 INFO L158 Benchmark]: CodeCheck took 2454.31ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 60.5MB in the end (delta: 39.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-11-08 22:36:55,935 INFO L158 Benchmark]: Witness Printer took 104.77ms. Allocated memory is still 159.4MB. Free memory was 60.5MB in the beginning and 56.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:36:55,936 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 22 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/4 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: 27]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 159.4MB. Free memory is still 131.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.82ms. Allocated memory is still 159.4MB. Free memory was 127.1MB in the beginning and 114.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.75ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 113.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.30ms. Allocated memory is still 159.4MB. Free memory was 113.1MB in the beginning and 112.2MB in the end (delta: 881.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 423.69ms. Allocated memory is still 159.4MB. Free memory was 112.2MB in the beginning and 99.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 2454.31ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 60.5MB in the end (delta: 39.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 104.77ms. Allocated memory is still 159.4MB. Free memory was 60.5MB in the beginning and 56.3MB 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! [2024-11-08 22:36:55,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcd1223-d25b-40b7-8fd6-1ecc6bd6b864/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