./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i --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_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi --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 b99743698ab3c7d4b9a6ed0a9848578e31609919a215161232195dca61aa5c4e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:29,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:29,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:17:29,601 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:17:29,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:17:29,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:29,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:29,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:29,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:29,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:29,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:29,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:29,677 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:17:29,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:17:29,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:17:29,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:29,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:29,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:29,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:29,685 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:17:29,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:29,691 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:29,692 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:29,694 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:29,694 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:29,695 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:29,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:29,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:29,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:29,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:29,698 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:17:29,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:17:29,699 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:29,699 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_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b99743698ab3c7d4b9a6ed0a9848578e31609919a215161232195dca61aa5c4e [2023-11-24 22:17:30,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:30,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:30,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:30,068 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:30,071 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:30,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2023-11-24 22:17:33,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:33,504 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:33,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2023-11-24 22:17:33,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/data/b02cd1f94/7b1ddd54dd11451aaa58bbcca4c531df/FLAGb02bfcc35 [2023-11-24 22:17:33,540 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/data/b02cd1f94/7b1ddd54dd11451aaa58bbcca4c531df [2023-11-24 22:17:33,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:33,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:33,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:33,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:33,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:33,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:33,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e07598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33, skipping insertion in model container [2023-11-24 22:17:33,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:33,605 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:33,845 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_993c4276-5bc1-4313-bf85-b5b4c894316e/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2023-11-24 22:17:33,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:33,874 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:33,907 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_993c4276-5bc1-4313-bf85-b5b4c894316e/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2023-11-24 22:17:33,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:33,934 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:33,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33 WrapperNode [2023-11-24 22:17:33,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:33,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:33,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:33,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:33,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:33,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:33,982 INFO L138 Inliner]: procedures = 17, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2023-11-24 22:17:33,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:33,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:33,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:33,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:33,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:33,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:34,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:34,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:34,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:34,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:34,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:34,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:34,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:34,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:34,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:34,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:34,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:33" (1/1) ... [2023-11-24 22:17:34,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:34,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:34,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:34,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:34,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:17:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:17:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 22:17:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:17:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:17:34,285 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:34,326 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:34,474 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:34,538 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:34,545 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:17:34,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:34 BoogieIcfgContainer [2023-11-24 22:17:34,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:34,548 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:34,548 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:34,560 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:34,561 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:34" (1/1) ... [2023-11-24 22:17:34,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:34,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:34,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-24 22:17:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-24 22:17:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:17:34,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:34,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:34,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:34,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:34,833 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:17:34,857 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated [2023-11-24 22:17:34,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:17:34 ImpRootNode [2023-11-24 22:17:34,863 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:17:34,864 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:17:34,864 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:17:34,864 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:17:34,865 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:34" (3/4) ... [2023-11-24 22:17:34,869 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:17:34,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:17:34,875 INFO L158 Benchmark]: Toolchain (without parser) took 1323.07ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 118.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:34,876 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:34,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.06ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 126.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:17:34,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.34ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 125.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:34,880 INFO L158 Benchmark]: Boogie Preprocessor took 54.24ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 124.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:34,881 INFO L158 Benchmark]: RCFGBuilder took 508.28ms. Allocated memory is still 167.8MB. Free memory was 124.0MB in the beginning and 132.5MB in the end (delta: -8.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 22:17:34,882 INFO L158 Benchmark]: CodeCheck took 314.70ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 119.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:17:34,883 INFO L158 Benchmark]: Witness Printer took 9.85ms. Allocated memory is still 167.8MB. Free memory was 119.2MB in the beginning and 118.5MB in the end (delta: 719.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:34,889 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, 6 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, 3 NumberOfCodeBlocks, 3 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: 114]: 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 someBinaryArithmeticFLOAToperation at line 111, overapproximation of someUnaryDOUBLEoperation at line 122. Possible FailurePath: [L122] CALL f00(-0x1.6b890ep+29, 0x1.6b890ep+29) [L111] float sum = a + b; [L112] union mix m; [L113] m.f = sum [L114] EXPR m.i VAL [\old(a)=5, \old(b)=762388928, a=5, b=762388928, m={2439:0}, sum=2] [L114] COND TRUE !(m.i != 0x80000000) [L114] reach_error() VAL [\old(a)=5, \old(b)=762388928, a=5, b=762388928, m={2439:0}, sum=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.06ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 126.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.34ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 125.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.24ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 124.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.28ms. Allocated memory is still 167.8MB. Free memory was 124.0MB in the beginning and 132.5MB in the end (delta: -8.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 314.70ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 119.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 9.85ms. Allocated memory is still 167.8MB. Free memory was 119.2MB in the beginning and 118.5MB in the end (delta: 719.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:17:34,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/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_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi --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 b99743698ab3c7d4b9a6ed0a9848578e31609919a215161232195dca61aa5c4e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:38,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:38,169 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:17:38,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:38,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:38,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:38,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:38,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:38,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:38,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:38,236 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:17:38,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:17:38,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:38,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:38,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:38,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:38,240 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:17:38,241 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:17:38,241 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:17:38,242 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:17:38,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:38,244 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:38,245 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:38,245 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:38,246 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:38,246 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:38,247 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:17:38,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:38,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:38,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:38,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:38,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:38,250 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:17:38,250 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:38,251 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:38,251 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:17:38,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:17:38,251 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_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b99743698ab3c7d4b9a6ed0a9848578e31609919a215161232195dca61aa5c4e [2023-11-24 22:17:38,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:38,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:38,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:38,688 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:38,689 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:38,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2023-11-24 22:17:41,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:42,252 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:42,252 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2023-11-24 22:17:42,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/data/ced6bf23f/f4a18e1905be465fa57d5cb8b1101075/FLAG69f86c8e5 [2023-11-24 22:17:42,283 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/data/ced6bf23f/f4a18e1905be465fa57d5cb8b1101075 [2023-11-24 22:17:42,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:42,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:42,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:42,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:42,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:42,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191db1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42, skipping insertion in model container [2023-11-24 22:17:42,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,340 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:42,574 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_993c4276-5bc1-4313-bf85-b5b4c894316e/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2023-11-24 22:17:42,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:42,606 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:42,641 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_993c4276-5bc1-4313-bf85-b5b4c894316e/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2023-11-24 22:17:42,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:42,674 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:42,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42 WrapperNode [2023-11-24 22:17:42,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:42,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:42,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:42,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:42,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,741 INFO L138 Inliner]: procedures = 20, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2023-11-24 22:17:42,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:42,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:42,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:42,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:42,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:42,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:42,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:42,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:42,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:42" (1/1) ... [2023-11-24 22:17:42,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:42,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:42,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:42,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:42,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:17:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:17:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:17:42,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 22:17:42,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:17:43,008 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:43,010 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:43,259 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:43,297 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:43,298 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:17:43,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:43 BoogieIcfgContainer [2023-11-24 22:17:43,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:43,301 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:43,301 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:43,312 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:43,313 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:43" (1/1) ... [2023-11-24 22:17:43,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:43,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-24 22:17:43,387 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-24 22:17:43,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:17:43,389 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:43,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:43,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:43,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:43,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:17:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:43,605 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:17:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:43,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-24 22:17:43,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:17:43,811 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:17:43,814 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2023-11-24 22:17:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:43,854 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:17:43,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:17:43,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2023-11-24 22:17:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2023-11-24 22:17:43,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:17:44,000 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-24 22:17:44,009 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 22:17:44,020 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:17:44,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:17:44 ImpRootNode [2023-11-24 22:17:44,023 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:17:44,025 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:17:44,031 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:17:44,031 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:17:44,032 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:43" (3/4) ... [2023-11-24 22:17:44,034 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:17:44,047 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-24 22:17:44,048 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 22:17:44,048 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:17:44,049 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:17:44,174 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:17:44,175 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:17:44,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:17:44,176 INFO L158 Benchmark]: Toolchain (without parser) took 1884.26ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 34.7MB in the end (delta: 22.7MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-11-24 22:17:44,176 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 57.2MB in the end (delta: 141.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:44,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.51ms. Allocated memory is still 81.8MB. Free memory was 57.2MB in the beginning and 46.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:17:44,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.42ms. Allocated memory is still 81.8MB. Free memory was 45.9MB in the beginning and 44.4MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:17:44,178 INFO L158 Benchmark]: Boogie Preprocessor took 68.31ms. Allocated memory is still 81.8MB. Free memory was 44.4MB in the beginning and 43.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:44,179 INFO L158 Benchmark]: RCFGBuilder took 488.20ms. Allocated memory is still 81.8MB. Free memory was 43.0MB in the beginning and 55.7MB in the end (delta: -12.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-24 22:17:44,179 INFO L158 Benchmark]: CodeCheck took 722.54ms. Allocated memory is still 81.8MB. Free memory was 55.7MB in the beginning and 39.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:17:44,180 INFO L158 Benchmark]: Witness Printer took 150.07ms. Allocated memory is still 81.8MB. Free memory was 38.6MB in the beginning and 34.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:17:44,192 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 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, 0.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 9 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 12 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 - PositiveResult [Line: 114]: 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: 114]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 57.2MB in the end (delta: 141.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.51ms. Allocated memory is still 81.8MB. Free memory was 57.2MB in the beginning and 46.1MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.42ms. Allocated memory is still 81.8MB. Free memory was 45.9MB in the beginning and 44.4MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.31ms. Allocated memory is still 81.8MB. Free memory was 44.4MB in the beginning and 43.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.20ms. Allocated memory is still 81.8MB. Free memory was 43.0MB in the beginning and 55.7MB in the end (delta: -12.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * CodeCheck took 722.54ms. Allocated memory is still 81.8MB. Free memory was 55.7MB in the beginning and 39.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 150.07ms. Allocated memory is still 81.8MB. Free memory was 38.6MB in the beginning and 34.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:17:44,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_993c4276-5bc1-4313-bf85-b5b4c894316e/bin/ukojak-verify-afCqCEvfdi/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