./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:07:39,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:07:39,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:07:39,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:07:39,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:07:39,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:07:39,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:07:39,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:07:39,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:07:39,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:07:39,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:07:39,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:07:39,957 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:07:39,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:07:39,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:07:39,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:07:39,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:07:39,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:07:39,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:07:39,962 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:07:39,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:07:39,963 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:07:39,964 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:07:39,964 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:07:39,965 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:07:39,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:07:39,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:07:39,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:07:39,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:07:39,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:07:39,969 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:07:39,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:07:39,970 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:07:39,970 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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 [2023-12-02 23:07:40,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:07:40,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:07:40,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:07:40,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:07:40,283 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:07:40,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2023-12-02 23:07:43,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:07:44,143 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:07:44,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2023-12-02 23:07:44,156 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/data/91c9dbfcf/4f3191b72108426eb531302fbba73fbb/FLAG009d3625d [2023-12-02 23:07:44,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/data/91c9dbfcf/4f3191b72108426eb531302fbba73fbb [2023-12-02 23:07:44,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:07:44,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:07:44,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:07:44,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:07:44,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:07:44,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9055004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44, skipping insertion in model container [2023-12-02 23:07:44,194 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,230 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:07:44,476 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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2023-12-02 23:07:44,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:07:44,497 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:07:44,544 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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2023-12-02 23:07:44,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:07:44,568 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:07:44,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44 WrapperNode [2023-12-02 23:07:44,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:07:44,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:07:44,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:07:44,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:07:44,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,623 INFO L138 Inliner]: procedures = 18, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 186 [2023-12-02 23:07:44,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:07:44,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:07:44,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:07:44,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:07:44,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:07:44,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:07:44,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:07:44,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:07:44,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:44" (1/1) ... [2023-12-02 23:07:44,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:07:44,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:07:44,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:07:44,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:07:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:07:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:07:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:07:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 23:07:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:07:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 23:07:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:07:44,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:07:44,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:07:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:07:44,880 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:07:44,883 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:07:45,160 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:07:45,325 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:07:45,326 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 23:07:45,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:45 BoogieIcfgContainer [2023-12-02 23:07:45,328 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:07:45,329 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:07:45,330 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:07:45,343 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:07:45,344 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:45" (1/1) ... [2023-12-02 23:07:45,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:07:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:45,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2023-12-02 23:07:45,431 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-12-02 23:07:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:07:45,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:45,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:07:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:07:45,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:45,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-02 23:07:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-02 23:07:45,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:07:45,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:45,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:07:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:45,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:07:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:45,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:07:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:07:45,897 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-02 23:07:45,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:07:45 ImpRootNode [2023-12-02 23:07:45,935 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:07:45,936 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:07:45,936 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:07:45,936 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:07:45,937 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:07:45" (3/4) ... [2023-12-02 23:07:45,940 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 23:07:45,941 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:07:45,942 INFO L158 Benchmark]: Toolchain (without parser) took 1759.85ms. Allocated memory is still 157.3MB. Free memory was 127.1MB in the beginning and 78.8MB in the end (delta: 48.3MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2023-12-02 23:07:45,942 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:07:45,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.20ms. Allocated memory is still 157.3MB. Free memory was 127.1MB in the beginning and 114.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 23:07:45,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.36ms. Allocated memory is still 157.3MB. Free memory was 114.6MB in the beginning and 112.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:07:45,944 INFO L158 Benchmark]: Boogie Preprocessor took 47.68ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 111.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:07:45,945 INFO L158 Benchmark]: RCFGBuilder took 655.30ms. Allocated memory is still 157.3MB. Free memory was 110.4MB in the beginning and 100.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:07:45,946 INFO L158 Benchmark]: CodeCheck took 605.79ms. Allocated memory is still 157.3MB. Free memory was 100.5MB in the beginning and 78.8MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 23:07:45,946 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 157.3MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:07:45,950 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 48 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 127]: 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 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; [L122] float x = -1.0f / 0.0f; [L123] CALL, EXPR __ieee754_logf(x) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] EXPR gf_u.value = (x) [L41] EXPR gf_u.word [L41] EXPR (ix) = gf_u.word [L38-L42] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2, ix=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2, zero_log=0] [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2, ix=0, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2, ix=0, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2, zero_log=0] [L123] RET, EXPR __ieee754_logf(x) [L123] float res = __ieee754_logf(x); [L126] CALL, EXPR isnan_float(res) [L113] return x != x; [L126] RET, EXPR isnan_float(res) [L126] COND TRUE !isnan_float(res) [L127] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=5, two25_log=33554432, x=2, zero_log=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.20ms. Allocated memory is still 157.3MB. Free memory was 127.1MB in the beginning and 114.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.36ms. Allocated memory is still 157.3MB. Free memory was 114.6MB in the beginning and 112.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.68ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 111.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 655.30ms. Allocated memory is still 157.3MB. Free memory was 110.4MB in the beginning and 100.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 605.79ms. Allocated memory is still 157.3MB. Free memory was 100.5MB in the beginning and 78.8MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 157.3MB. Free memory is still 78.8MB. 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 23:07:45,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:07:48,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:07:48,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-02 23:07:48,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:07:48,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:07:48,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:07:48,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:07:48,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:07:48,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:07:48,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:07:48,580 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:07:48,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:07:48,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:07:48,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:07:48,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:07:48,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:07:48,584 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:07:48,585 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:07:48,586 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:07:48,586 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:07:48,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:07:48,588 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:07:48,589 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:07:48,589 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:07:48,590 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:07:48,590 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:48,591 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:07:48,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:07:48,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:07:48,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:07:48,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:07:48,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:07:48,594 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:07:48,595 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:48,595 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:07:48,596 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:07:48,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:07:48,596 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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 [2023-12-02 23:07:48,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:07:48,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:07:48,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:07:48,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:07:48,952 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:07:48,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2023-12-02 23:07:51,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:07:52,060 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:07:52,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2023-12-02 23:07:52,073 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/data/0003d85d8/b890849d14c54b478155e0fbef8f15f9/FLAG315f2fe4e [2023-12-02 23:07:52,091 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/data/0003d85d8/b890849d14c54b478155e0fbef8f15f9 [2023-12-02 23:07:52,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:07:52,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:07:52,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:07:52,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:07:52,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:07:52,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdb36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52, skipping insertion in model container [2023-12-02 23:07:52,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,145 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:07:52,392 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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2023-12-02 23:07:52,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:07:52,419 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:07:52,466 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_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2023-12-02 23:07:52,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:07:52,491 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:07:52,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52 WrapperNode [2023-12-02 23:07:52,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:07:52,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:07:52,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:07:52,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:07:52,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,551 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 142 [2023-12-02 23:07:52,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:07:52,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:07:52,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:07:52,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:07:52,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,596 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:07:52,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:07:52,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:07:52,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:07:52,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:07:52" (1/1) ... [2023-12-02 23:07:52,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:07:52,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:07:52,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:07:52,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:07:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:07:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:07:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 23:07:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 23:07:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 23:07:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:07:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:07:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 23:07:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 23:07:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 23:07:52,837 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:07:52,840 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:08:52,438 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:08:52,492 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:08:52,492 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 23:08:52,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:08:52 BoogieIcfgContainer [2023-12-02 23:08:52,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:08:52,495 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:08:52,495 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:08:52,504 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:08:52,504 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:08:52" (1/1) ... [2023-12-02 23:08:52,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:08:52,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:52,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2023-12-02 23:08:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-12-02 23:08:52,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:08:52,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:52,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:52,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:52,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:52,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:08:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:52,970 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:53,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:08:53,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:08:53,032 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:08:53,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:09:03,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:09:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-02 23:09:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-02 23:09:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:09:03,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:03,568 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:03,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:03,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:03,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:09:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:05,035 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:05,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:09:05,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:05,412 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 23:09:05,414 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2023-12-02 23:09:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:09:05,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-12-02 23:09:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2023-12-02 23:09:07,217 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-12-02 23:09:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:09:07,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:07,218 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:07,220 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:07,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:09:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:09,180 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:09,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:09:09,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:09:10,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:09:16,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:09:27,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:09:38,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:09:40,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:09:42,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:09:46,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:09:47,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 23:09:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:48,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2023-12-02 23:09:48,539 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-12-02 23:09:48,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:09:48,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:48,541 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:48,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:48,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:48,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 23:09:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:49,759 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:49,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:09:49,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:49,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 23:09:49,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-12-02 23:09:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:09:50,079 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:09:50,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 23:09:51,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:51,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2023-12-02 23:09:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2023-12-02 23:09:51,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:09:51,801 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-12-02 23:09:51,807 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 23:09:52,310 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:09:52,312 INFO L560 CodeCheckObserver]: Invariant with dag size 13 [2023-12-02 23:09:52,316 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: #res == ~fp.div~32(currentRoundingMode, ~fp.sub~32(currentRoundingMode, ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()), ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32())), ~to_fp~32(currentRoundingMode, ~Pluszero~64()))) could not be translated [2023-12-02 23:09:52,318 INFO L560 CodeCheckObserver]: Invariant with dag size 13 [2023-12-02 23:09:52,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:09:52 ImpRootNode [2023-12-02 23:09:52,320 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:09:52,320 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:09:52,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:09:52,321 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:09:52,321 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:08:52" (3/4) ... [2023-12-02 23:09:52,323 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:09:52,332 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-12-02 23:09:52,332 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 23:09:52,333 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 23:09:52,333 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:09:52,424 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:09:52,424 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:09:52,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:09:52,425 INFO L158 Benchmark]: Toolchain (without parser) took 120329.07ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 50.5MB in the end (delta: 24.7MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-12-02 23:09:52,426 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:09:52,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.06ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 61.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 23:09:52,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.65ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 59.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:09:52,427 INFO L158 Benchmark]: Boogie Preprocessor took 52.38ms. Allocated memory is still 98.6MB. Free memory was 59.5MB in the beginning and 57.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:09:52,427 INFO L158 Benchmark]: RCFGBuilder took 59887.34ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 58.2MB in the end (delta: -684.4kB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-12-02 23:09:52,428 INFO L158 Benchmark]: CodeCheck took 59824.93ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 56.0MB in the end (delta: 2.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-12-02 23:09:52,428 INFO L158 Benchmark]: Witness Printer took 104.56ms. Allocated memory is still 98.6MB. Free memory was 56.0MB in the beginning and 50.5MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:09:52,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 113.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 106.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 57 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 248 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 10 QuantifiedInterpolants, 248 SizeOfPredicates, 20 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 127]: 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: 115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: null * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.06ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 61.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.65ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 59.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.38ms. Allocated memory is still 98.6MB. Free memory was 59.5MB in the beginning and 57.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 59887.34ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 58.2MB in the end (delta: -684.4kB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * CodeCheck took 59824.93ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 56.0MB in the end (delta: 2.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 104.56ms. Allocated memory is still 98.6MB. Free memory was 56.0MB in the beginning and 50.5MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: #res == ~fp.div~32(currentRoundingMode, ~fp.sub~32(currentRoundingMode, ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32()), ~fp.div~32(currentRoundingMode, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)), ~Pluszero~32())), ~to_fp~32(currentRoundingMode, ~Pluszero~64()))) could not be translated RESULT: Ultimate proved your program to be correct! [2023-12-02 23:09:52,647 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 23:09:52,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e9a65f-f4a5-4b32-8ed0-1e7341535e92/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 Writing output log to file Ultimate.log Result: TRUE