./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/rlim_invariant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9 --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 d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:54:58,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:54:58,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 20:54:58,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:54:58,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 20:54:58,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:54:58,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:54:58,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 20:54:58,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:54:58,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:54:58,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:54:58,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:54:58,953 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:54:58,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:54:58,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:54:58,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:54:58,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:54:58,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:54:58,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:54:58,957 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:54:58,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:54:58,958 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:54:58,958 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 20:54:58,959 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 20:54:58,959 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 20:54:58,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:54:58,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:54:58,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:54:58,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:54:58,962 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:54:58,962 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 20:54:58,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:54:58,963 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:54:58,963 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_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 [2023-12-02 20:54:59,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:54:59,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:54:59,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:54:59,218 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:54:59,218 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:54:59,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-benchs/rlim_invariant.c [2023-12-02 20:55:01,993 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:55:02,152 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:55:02,153 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/sv-benchmarks/c/float-benchs/rlim_invariant.c [2023-12-02 20:55:02,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/data/cb83109f3/7c6fa4aed4064fbfacb68faa5e60a9ec/FLAGf4f429377 [2023-12-02 20:55:02,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/data/cb83109f3/7c6fa4aed4064fbfacb68faa5e60a9ec [2023-12-02 20:55:02,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:55:02,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:55:02,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:55:02,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:55:02,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:55:02,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c5665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02, skipping insertion in model container [2023-12-02 20:55:02,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:55:02,388 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_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/sv-benchmarks/c/float-benchs/rlim_invariant.c[451,464] [2023-12-02 20:55:02,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:55:02,409 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:55:02,419 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_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/sv-benchmarks/c/float-benchs/rlim_invariant.c[451,464] [2023-12-02 20:55:02,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:55:02,434 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:55:02,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02 WrapperNode [2023-12-02 20:55:02,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:55:02,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:55:02,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:55:02,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:55:02,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,462 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-12-02 20:55:02,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:55:02,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:55:02,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:55:02,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:55:02,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:55:02,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:55:02,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:55:02,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:55:02,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:55:02,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 20:55:02,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 20:55:02,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 20:55:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:55:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 20:55:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 20:55:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:55:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:55:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:55:02,608 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:55:02,610 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:55:02,707 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:55:02,755 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:55:02,755 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 20:55:02,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:02 BoogieIcfgContainer [2023-12-02 20:55:02,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:55:02,758 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 20:55:02,758 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 20:55:02,767 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 20:55:02,767 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:02" (1/1) ... [2023-12-02 20:55:02,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:55:02,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:02,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-02 20:55:02,823 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-02 20:55:02,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 20:55:02,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:02,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:55:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 20:55:02,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 20:55:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 20:55:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 20:55:02,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 20:55:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 20:55:03,011 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-02 20:55:03,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 08:55:03 ImpRootNode [2023-12-02 20:55:03,032 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 20:55:03,033 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 20:55:03,033 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 20:55:03,033 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 20:55:03,034 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:02" (3/4) ... [2023-12-02 20:55:03,036 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 20:55:03,037 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 20:55:03,038 INFO L158 Benchmark]: Toolchain (without parser) took 857.67ms. Allocated memory is still 159.4MB. Free memory was 117.0MB in the beginning and 99.0MB in the end (delta: 18.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-12-02 20:55:03,038 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:55:03,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.37ms. Allocated memory is still 159.4MB. Free memory was 117.0MB in the beginning and 128.0MB in the end (delta: -11.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 20:55:03,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.44ms. Allocated memory is still 159.4MB. Free memory was 128.0MB in the beginning and 126.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:55:03,040 INFO L158 Benchmark]: Boogie Preprocessor took 21.91ms. Allocated memory is still 159.4MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 943.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:55:03,041 INFO L158 Benchmark]: RCFGBuilder took 271.09ms. Allocated memory is still 159.4MB. Free memory was 125.3MB in the beginning and 113.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 20:55:03,042 INFO L158 Benchmark]: CodeCheck took 273.90ms. Allocated memory is still 159.4MB. Free memory was 113.3MB in the beginning and 99.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 20:55:03,042 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 159.4MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:55:03,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 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, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - UnprovableResult [Line: 10]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 29, overapproximation of to_real at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 28. Possible FailurePath: [L14] float X, Y, S, R, D; [L15] int i; [L17] Y = 0 [L19] i = 0 VAL [i=0] [L19] COND TRUE i < 100000 [L21] X = __VERIFIER_nondet_float() [L22] D = __VERIFIER_nondet_float() [L23] CALL assume_abort_if_not(X >= -128.f && X <= 128.f) VAL [\old(cond)=1] [L8] COND FALSE !(!cond) [L23] RET assume_abort_if_not(X >= -128.f && X <= 128.f) VAL [i=0] [L24] CALL assume_abort_if_not(D >= 0.f && D <= 16.f) VAL [\old(cond)=1] [L8] COND FALSE !(!cond) [L24] RET assume_abort_if_not(D >= 0.f && D <= 16.f) VAL [i=0] [L26] S = Y [L27] Y = X [L28] R = X - S [L29] COND FALSE !(R <= -D) [L30] COND TRUE R >= D [L30] Y = S + D [L32] CALL __VERIFIER_assert(Y >= -129.f && Y <= 129.f) [L10] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L10] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.37ms. Allocated memory is still 159.4MB. Free memory was 117.0MB in the beginning and 128.0MB in the end (delta: -11.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.44ms. Allocated memory is still 159.4MB. Free memory was 128.0MB in the beginning and 126.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.91ms. Allocated memory is still 159.4MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 943.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 271.09ms. Allocated memory is still 159.4MB. Free memory was 125.3MB in the beginning and 113.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 273.90ms. Allocated memory is still 159.4MB. Free memory was 113.3MB in the beginning and 99.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 159.4MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 20:55:03,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9 --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 d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:55:05,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:55:05,093 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-02 20:55:05,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:55:05,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:55:05,126 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 20:55:05,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:55:05,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:55:05,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:55:05,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:55:05,129 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:55:05,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:55:05,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:55:05,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:55:05,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:55:05,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:55:05,132 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 20:55:05,133 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 20:55:05,133 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 20:55:05,134 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:55:05,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:55:05,140 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:55:05,140 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 20:55:05,140 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 20:55:05,141 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 20:55:05,141 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:05,142 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 20:55:05,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:55:05,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:55:05,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:55:05,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:55:05,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:55:05,144 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 20:55:05,144 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:05,145 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:55:05,145 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 20:55:05,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:55:05,145 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d395d439ec4556dc83dba3523bab6fe5cf68ec358a108cd3824067669c5e9bc5 [2023-12-02 20:55:05,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:55:05,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:55:05,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:55:05,456 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:55:05,457 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:55:05,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-benchs/rlim_invariant.c [2023-12-02 20:55:08,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:55:08,476 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:55:08,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/sv-benchmarks/c/float-benchs/rlim_invariant.c [2023-12-02 20:55:08,483 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/data/3820d54db/860aaa139d834ca3bfad4cfd63f75e19/FLAG5b2245197 [2023-12-02 20:55:08,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/data/3820d54db/860aaa139d834ca3bfad4cfd63f75e19 [2023-12-02 20:55:08,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:55:08,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:55:08,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:55:08,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:55:08,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:55:08,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b87c7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08, skipping insertion in model container [2023-12-02 20:55:08,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:55:08,649 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_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/sv-benchmarks/c/float-benchs/rlim_invariant.c[451,464] [2023-12-02 20:55:08,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:55:08,676 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:55:08,687 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_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/sv-benchmarks/c/float-benchs/rlim_invariant.c[451,464] [2023-12-02 20:55:08,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:55:08,708 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:55:08,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08 WrapperNode [2023-12-02 20:55:08,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:55:08,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:55:08,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:55:08,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:55:08,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,744 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-12-02 20:55:08,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:55:08,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:55:08,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:55:08,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:55:08,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:55:08,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:55:08,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:55:08,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:55:08,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:55:08" (1/1) ... [2023-12-02 20:55:08,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 20:55:08,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 20:55:08,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 20:55:08,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 20:55:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:55:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 20:55:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 20:55:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 20:55:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:55:08,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:55:08,916 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:55:08,919 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:55:09,167 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:55:09,214 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:55:09,214 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 20:55:09,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:09 BoogieIcfgContainer [2023-12-02 20:55:09,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:55:09,217 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 20:55:09,217 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 20:55:09,227 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 20:55:09,228 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:09" (1/1) ... [2023-12-02 20:55:09,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:55:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-12-02 20:55:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-02 20:55:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 20:55:09,299 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:09,300 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:09,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:09,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 20:55:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:09,587 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:09,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 20:55:09,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 20:55:10,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 20:55:12,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:55:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2023-12-02 20:55:12,725 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2023-12-02 20:55:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 20:55:12,726 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 20:55:12,727 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 20:55:12,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 20:55:12,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 20:55:12,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 20:55:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:13,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 20:55:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:55:19,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 20:55:19,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:55:48,924 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 20:55:48,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 20:56:00,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.75s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:56:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 20:56:02,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 14 states and 19 transitions. [2023-12-02 20:56:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2023-12-02 20:56:02,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 20:56:02,088 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-12-02 20:56:02,094 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 20:56:02,226 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 20:56:02,229 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 20:56:02,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 08:56:02 ImpRootNode [2023-12-02 20:56:02,229 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 20:56:02,230 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 20:56:02,230 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 20:56:02,230 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 20:56:02,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:55:09" (3/4) ... [2023-12-02 20:56:02,233 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 20:56:02,236 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 20:56:02,241 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-12-02 20:56:02,241 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 20:56:02,241 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 20:56:02,241 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 20:56:02,317 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 20:56:02,317 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 20:56:02,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 20:56:02,318 INFO L158 Benchmark]: Toolchain (without parser) took 53819.03ms. Allocated memory is still 125.8MB. Free memory was 102.1MB in the beginning and 93.3MB in the end (delta: 8.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-12-02 20:56:02,319 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:56:02,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.38ms. Allocated memory is still 125.8MB. Free memory was 101.8MB in the beginning and 90.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 20:56:02,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.66ms. Allocated memory is still 125.8MB. Free memory was 90.6MB in the beginning and 89.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:56:02,320 INFO L158 Benchmark]: Boogie Preprocessor took 30.13ms. Allocated memory is still 125.8MB. Free memory was 89.2MB in the beginning and 87.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:56:02,321 INFO L158 Benchmark]: RCFGBuilder took 440.20ms. Allocated memory is still 125.8MB. Free memory was 87.5MB in the beginning and 75.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 20:56:02,321 INFO L158 Benchmark]: CodeCheck took 53012.44ms. Allocated memory is still 125.8MB. Free memory was 75.0MB in the beginning and 97.5MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:56:02,322 INFO L158 Benchmark]: Witness Printer took 87.48ms. Allocated memory is still 125.8MB. Free memory was 97.5MB in the beginning and 93.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 20:56:02,324 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.8s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 12.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 22 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 314 GetRequests, 258 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 5.7s SatisfiabilityAnalysisTime, 30.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 23 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 13/19 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: 10]: 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.38ms. Allocated memory is still 125.8MB. Free memory was 101.8MB in the beginning and 90.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.66ms. Allocated memory is still 125.8MB. Free memory was 90.6MB in the beginning and 89.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.13ms. Allocated memory is still 125.8MB. Free memory was 89.2MB in the beginning and 87.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.20ms. Allocated memory is still 125.8MB. Free memory was 87.5MB in the beginning and 75.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 53012.44ms. Allocated memory is still 125.8MB. Free memory was 75.0MB in the beginning and 97.5MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 87.48ms. Allocated memory is still 125.8MB. Free memory was 97.5MB in the beginning and 93.3MB 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! [2023-12-02 20:56:02,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e82f2a6-b702-4ab2-a791-e1bbcbdb8d92/bin/ukojak-verify-Qdu7aM0XO9/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