./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 53f42b1a
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-53f42b1
[2021-11-20 07:16:36,795 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-20 07:16:36,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-20 07:16:36,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-20 07:16:36,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-20 07:16:36,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-20 07:16:36,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-20 07:16:36,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-20 07:16:36,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-20 07:16:36,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-20 07:16:36,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-20 07:16:36,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-20 07:16:36,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-20 07:16:36,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-20 07:16:36,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-20 07:16:36,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-20 07:16:36,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-20 07:16:36,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-20 07:16:36,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-20 07:16:36,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-20 07:16:36,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-20 07:16:36,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-20 07:16:36,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-20 07:16:36,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-20 07:16:36,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-20 07:16:36,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-20 07:16:36,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-20 07:16:36,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-20 07:16:36,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-20 07:16:36,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-20 07:16:36,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-20 07:16:36,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-20 07:16:36,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-20 07:16:36,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-20 07:16:36,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-20 07:16:36,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-20 07:16:36,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-20 07:16:36,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-20 07:16:36,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-20 07:16:36,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-20 07:16:36,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-20 07:16:36,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-20 07:16:36,900 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-20 07:16:36,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-20 07:16:36,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-20 07:16:36,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-20 07:16:36,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-20 07:16:36,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-20 07:16:36,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-20 07:16:36,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-20 07:16:36,904 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-20 07:16:36,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-20 07:16:36,905 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-20 07:16:36,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-20 07:16:36,905 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-20 07:16:36,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-20 07:16:36,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-20 07:16:36,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-20 07:16:36,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-20 07:16:36,907 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-20 07:16:36,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-20 07:16:36,907 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-20 07:16:36,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-20 07:16:36,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-20 07:16:36,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-20 07:16:36,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-20 07:16:36,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 07:16:36,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-20 07:16:36,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-20 07:16:36,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-20 07:16:36,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-20 07:16:36,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-20 07:16:36,910 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-20 07:16:36,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-20 07:16:36,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-20 07:16:36,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-20 07:16:36,912 INFO L138 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_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b
[2021-11-20 07:16:37,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-20 07:16:37,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-20 07:16:37,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-20 07:16:37,186 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-20 07:16:37,187 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-20 07:16:37,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c
[2021-11-20 07:16:37,273 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data/df1dba8b2/9987752220ba4ab58b9770190696ce55/FLAG4fc9c9d04
[2021-11-20 07:16:37,686 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-20 07:16:37,686 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/sv-benchmarks/c/float-newlib/float_req_bl_1010.c
[2021-11-20 07:16:37,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data/df1dba8b2/9987752220ba4ab58b9770190696ce55/FLAG4fc9c9d04
[2021-11-20 07:16:38,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data/df1dba8b2/9987752220ba4ab58b9770190696ce55
[2021-11-20 07:16:38,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-20 07:16:38,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-20 07:16:38,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-20 07:16:38,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-20 07:16:38,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-20 07:16:38,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148b3a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38, skipping insertion in model container
[2021-11-20 07:16:38,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-20 07:16:38,119 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-20 07:16:38,309 WARN L230 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_2a361a75-af6f-4e08-9dfa-5994d55da639/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012]
[2021-11-20 07:16:38,312 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-11-20 07:16:38,321 INFO L203 MainTranslator]: Completed pre-run
[2021-11-20 07:16:38,345 WARN L230 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_2a361a75-af6f-4e08-9dfa-5994d55da639/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012]
[2021-11-20 07:16:38,346 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-11-20 07:16:38,363 INFO L208 MainTranslator]: Completed translation
[2021-11-20 07:16:38,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38 WrapperNode
[2021-11-20 07:16:38,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-20 07:16:38,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-20 07:16:38,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-20 07:16:38,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-20 07:16:38,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,399 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53
[2021-11-20 07:16:38,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-20 07:16:38,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-20 07:16:38,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-20 07:16:38,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-20 07:16:38,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-20 07:16:38,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-20 07:16:38,425 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-20 07:16:38,426 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-20 07:16:38,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (1/1) ...
[2021-11-20 07:16:38,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 07:16:38,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:16:38,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-20 07:16:38,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-20 07:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-20 07:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-20 07:16:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-20 07:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2021-11-20 07:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-11-20 07:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2021-11-20 07:16:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-20 07:16:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-20 07:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-11-20 07:16:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-20 07:16:38,607 INFO L236 CfgBuilder]: Building ICFG
[2021-11-20 07:16:38,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-20 07:16:38,710 INFO L277 CfgBuilder]: Performing block encoding
[2021-11-20 07:16:38,716 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-20 07:16:38,716 INFO L301 CfgBuilder]: Removed 4 assume(true) statements.
[2021-11-20 07:16:38,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:38 BoogieIcfgContainer
[2021-11-20 07:16:38,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-20 07:16:38,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-20 07:16:38,720 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-20 07:16:38,723 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-20 07:16:38,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:16:38" (1/3) ...
[2021-11-20 07:16:38,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0f6a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:38, skipping insertion in model container
[2021-11-20 07:16:38,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:38" (2/3) ...
[2021-11-20 07:16:38,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0f6a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:38, skipping insertion in model container
[2021-11-20 07:16:38,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:38" (3/3) ...
[2021-11-20 07:16:38,726 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c
[2021-11-20 07:16:38,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-20 07:16:38,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-20 07:16:38,770 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-20 07:16:38,777 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-20 07:16:38,777 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-20 07:16:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:38,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-20 07:16:38,796 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-20 07:16:38,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:16:38,798 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:16:38,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:16:38,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times
[2021-11-20 07:16:38,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:16:38,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226028518]
[2021-11-20 07:16:38,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:16:38,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:16:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:16:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:16:38,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:16:38,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226028518]
[2021-11-20 07:16:38,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226028518] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:16:38,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:16:38,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-20 07:16:38,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112187237]
[2021-11-20 07:16:38,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:16:38,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-20 07:16:38,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:16:38,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-20 07:16:38,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-20 07:16:38,970 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:38,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-20 07:16:38,983 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions.
[2021-11-20 07:16:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-20 07:16:38,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-11-20 07:16:38,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-20 07:16:38,993 INFO L225 Difference]: With dead ends: 28
[2021-11-20 07:16:38,993 INFO L226 Difference]: Without dead ends: 12
[2021-11-20 07:16:38,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-20 07:16:38,999 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-20 07:16:39,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-20 07:16:39,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2021-11-20 07:16:39,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2021-11-20 07:16:39,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions.
[2021-11-20 07:16:39,063 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9
[2021-11-20 07:16:39,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-20 07:16:39,063 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions.
[2021-11-20 07:16:39,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions.
[2021-11-20 07:16:39,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-11-20 07:16:39,064 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-20 07:16:39,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:16:39,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-20 07:16:39,065 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:16:39,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:16:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times
[2021-11-20 07:16:39,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:16:39,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781927872]
[2021-11-20 07:16:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:16:39,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:16:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-20 07:16:39,114 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-20 07:16:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-20 07:16:39,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-20 07:16:39,164 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-20 07:16:39,166 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-20 07:16:39,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-20 07:16:39,171 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-11-20 07:16:39,174 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-20 07:16:39,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:16:39 BoogieIcfgContainer
[2021-11-20 07:16:39,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-20 07:16:39,199 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-20 07:16:39,199 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-20 07:16:39,199 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-20 07:16:39,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:38" (3/4) ...
[2021-11-20 07:16:39,215 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-20 07:16:39,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-20 07:16:39,216 INFO L158 Benchmark]: Toolchain (without parser) took 1130.58ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 48.8MB in the beginning and 39.2MB in the end (delta: 9.5MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB.
[2021-11-20 07:16:39,217 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 56.7MB in the beginning and 56.6MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-20 07:16:39,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.07ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 48.8MB in the beginning and 76.4MB in the end (delta: -27.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-20 07:16:39,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.87ms. Allocated memory is still 98.6MB. Free memory was 76.4MB in the beginning and 74.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-20 07:16:39,219 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 98.6MB. Free memory was 74.8MB in the beginning and 73.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-20 07:16:39,220 INFO L158 Benchmark]: RCFGBuilder took 293.35ms. Allocated memory is still 98.6MB. Free memory was 73.3MB in the beginning and 63.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-20 07:16:39,220 INFO L158 Benchmark]: TraceAbstraction took 477.64ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 39.8MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2021-11-20 07:16:39,221 INFO L158 Benchmark]: Witness Printer took 16.45ms. Allocated memory is still 98.6MB. Free memory was 39.8MB in the beginning and 39.2MB in the end (delta: 543.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-20 07:16:39,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 56.7MB in the beginning and 56.6MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 272.07ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 48.8MB in the beginning and 76.4MB in the end (delta: -27.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 34.87ms. Allocated memory is still 98.6MB. Free memory was 76.4MB in the beginning and 74.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 24.26ms. Allocated memory is still 98.6MB. Free memory was 74.8MB in the beginning and 73.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 293.35ms. Allocated memory is still 98.6MB. Free memory was 73.3MB in the beginning and 63.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 477.64ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 39.8MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Witness Printer took 16.45ms. Allocated memory is still 98.6MB. Free memory was 39.8MB in the beginning and 39.2MB in the end (delta: 543.0kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 42]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseAnd at line 25.
Possible FailurePath:
[L37] float x = 0.0f / 0.0f;
[L38] CALL, EXPR fabs_float(x)
[L17] __uint32_t ix;
VAL [\old(x)=50, x=50]
[L19] ieee_float_shape_type gf_u;
[L20] gf_u.value = (x)
[L21] EXPR gf_u.word
[L21] (ix) = gf_u.word
[L24] ieee_float_shape_type sf_u;
[L25] sf_u.word = (ix & 0x7fffffff)
[L26] EXPR sf_u.value
[L26] (x) = sf_u.value
[L28] return x;
VAL [\old(x)=50, \result=49, ix=51, x=49]
[L38] RET, EXPR fabs_float(x)
[L38] float res = fabs_float(x);
[L41] CALL, EXPR isnan_float(res)
[L14] return x != x;
VAL [\old(x)=49, \result=0, x=49]
[L41] RET, EXPR isnan_float(res)
[L41] COND TRUE !isnan_float(res)
[L42] reach_error()
VAL [res=49, x=50]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2021-11-20 07:16:39,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-53f42b1
[2021-11-20 07:16:41,780 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-20 07:16:41,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-20 07:16:41,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-20 07:16:41,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-20 07:16:41,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-20 07:16:41,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-20 07:16:41,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-20 07:16:41,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-20 07:16:41,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-20 07:16:41,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-20 07:16:41,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-20 07:16:41,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-20 07:16:41,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-20 07:16:41,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-20 07:16:41,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-20 07:16:41,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-20 07:16:41,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-20 07:16:41,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-20 07:16:41,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-20 07:16:41,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-20 07:16:41,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-20 07:16:41,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-20 07:16:41,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-20 07:16:41,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-20 07:16:41,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-20 07:16:41,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-20 07:16:41,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-20 07:16:41,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-20 07:16:41,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-20 07:16:41,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-20 07:16:41,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-20 07:16:41,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-20 07:16:41,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-20 07:16:41,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-20 07:16:41,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-20 07:16:41,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-20 07:16:41,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-20 07:16:41,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-20 07:16:41,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-20 07:16:41,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-20 07:16:41,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-20 07:16:41,937 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-20 07:16:41,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-20 07:16:41,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-20 07:16:41,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-20 07:16:41,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-20 07:16:41,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-20 07:16:41,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-20 07:16:41,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-20 07:16:41,940 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-20 07:16:41,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-20 07:16:41,940 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-20 07:16:41,941 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-20 07:16:41,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-20 07:16:41,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-20 07:16:41,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-20 07:16:41,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-20 07:16:41,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-11-20 07:16:41,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-20 07:16:41,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-20 07:16:41,942 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-20 07:16:41,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-20 07:16:41,943 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-20 07:16:41,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-20 07:16:41,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-20 07:16:41,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-20 07:16:41,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-20 07:16:41,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 07:16:41,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-20 07:16:41,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-20 07:16:41,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-20 07:16:41,945 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-20 07:16:41,945 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-20 07:16:41,945 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-20 07:16:41,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-20 07:16:41,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-20 07:16:41,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-20 07:16:41,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-20 07:16:41,946 INFO L138 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_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b589368e94c5bf428f982c3f177e2b11fa3048a410e00e940a504ad7d373847b
[2021-11-20 07:16:42,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-20 07:16:42,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-20 07:16:42,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-20 07:16:42,363 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-20 07:16:42,364 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-20 07:16:42,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c
[2021-11-20 07:16:42,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data/b53406b96/02f879175ae0444faf1b13e7fa637607/FLAG0fd6e5934
[2021-11-20 07:16:43,000 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-20 07:16:43,001 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/sv-benchmarks/c/float-newlib/float_req_bl_1010.c
[2021-11-20 07:16:43,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data/b53406b96/02f879175ae0444faf1b13e7fa637607/FLAG0fd6e5934
[2021-11-20 07:16:43,365 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/data/b53406b96/02f879175ae0444faf1b13e7fa637607
[2021-11-20 07:16:43,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-20 07:16:43,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-20 07:16:43,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-20 07:16:43,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-20 07:16:43,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-20 07:16:43,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d9c5e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43, skipping insertion in model container
[2021-11-20 07:16:43,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-20 07:16:43,398 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-20 07:16:43,576 WARN L230 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_2a361a75-af6f-4e08-9dfa-5994d55da639/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012]
[2021-11-20 07:16:43,578 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-11-20 07:16:43,595 INFO L203 MainTranslator]: Completed pre-run
[2021-11-20 07:16:43,625 WARN L230 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_2a361a75-af6f-4e08-9dfa-5994d55da639/sv-benchmarks/c/float-newlib/float_req_bl_1010.c[999,1012]
[2021-11-20 07:16:43,626 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-11-20 07:16:43,659 INFO L208 MainTranslator]: Completed translation
[2021-11-20 07:16:43,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43 WrapperNode
[2021-11-20 07:16:43,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-20 07:16:43,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-20 07:16:43,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-20 07:16:43,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-20 07:16:43,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,712 INFO L137 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53
[2021-11-20 07:16:43,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-20 07:16:43,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-20 07:16:43,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-20 07:16:43,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-20 07:16:43,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-20 07:16:43,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-20 07:16:43,764 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-20 07:16:43,765 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-20 07:16:43,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (1/1) ...
[2021-11-20 07:16:43,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 07:16:43,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/z3
[2021-11-20 07:16:43,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-20 07:16:43,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-20 07:16:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-20 07:16:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-20 07:16:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-20 07:16:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4
[2021-11-20 07:16:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-11-20 07:16:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-20 07:16:43,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-20 07:16:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4
[2021-11-20 07:16:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-20 07:16:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-20 07:16:43,960 INFO L236 CfgBuilder]: Building ICFG
[2021-11-20 07:16:43,962 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-20 07:16:44,143 INFO L277 CfgBuilder]: Performing block encoding
[2021-11-20 07:16:44,158 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-20 07:16:44,158 INFO L301 CfgBuilder]: Removed 4 assume(true) statements.
[2021-11-20 07:16:44,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:44 BoogieIcfgContainer
[2021-11-20 07:16:44,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-20 07:16:44,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-20 07:16:44,162 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-20 07:16:44,164 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-20 07:16:44,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:16:43" (1/3) ...
[2021-11-20 07:16:44,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f34e8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:44, skipping insertion in model container
[2021-11-20 07:16:44,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:16:43" (2/3) ...
[2021-11-20 07:16:44,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f34e8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:16:44, skipping insertion in model container
[2021-11-20 07:16:44,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:44" (3/3) ...
[2021-11-20 07:16:44,167 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c
[2021-11-20 07:16:44,172 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-20 07:16:44,172 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-20 07:16:44,231 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-20 07:16:44,238 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-20 07:16:44,238 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-20 07:16:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-11-20 07:16:44,272 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-20 07:16:44,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:16:44,273 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:16:44,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:16:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times
[2021-11-20 07:16:44,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-20 07:16:44,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827763692]
[2021-11-20 07:16:44,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:16:44,291 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-20 07:16:44,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat
[2021-11-20 07:16:44,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-20 07:16:44,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-20 07:16:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:16:44,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-11-20 07:16:44,399 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:16:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:16:44,465 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-20 07:16:44,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:16:44,499 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-20 07:16:44,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827763692]
[2021-11-20 07:16:44,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827763692] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:16:44,501 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:16:44,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-20 07:16:44,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242209726]
[2021-11-20 07:16:44,504 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-20 07:16:44,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-20 07:16:44,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-20 07:16:44,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-20 07:16:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-20 07:16:44,545 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:44,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-20 07:16:44,561 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions.
[2021-11-20 07:16:44,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-20 07:16:44,563 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2021-11-20 07:16:44,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-20 07:16:44,577 INFO L225 Difference]: With dead ends: 28
[2021-11-20 07:16:44,577 INFO L226 Difference]: Without dead ends: 12
[2021-11-20 07:16:44,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-20 07:16:44,586 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-20 07:16:44,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-20 07:16:44,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2021-11-20 07:16:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2021-11-20 07:16:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions.
[2021-11-20 07:16:44,618 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9
[2021-11-20 07:16:44,619 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-20 07:16:44,619 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions.
[2021-11-20 07:16:44,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:44,619 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions.
[2021-11-20 07:16:44,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-11-20 07:16:44,620 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-20 07:16:44,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-20 07:16:44,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-20 07:16:44,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3
[2021-11-20 07:16:44,840 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:16:44,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:16:44,841 INFO L85 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times
[2021-11-20 07:16:44,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-20 07:16:44,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75277794]
[2021-11-20 07:16:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:16:44,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-20 07:16:44,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat
[2021-11-20 07:16:44,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-20 07:16:44,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-20 07:16:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:16:44,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 15 conjunts are in the unsatisfiable core
[2021-11-20 07:16:44,914 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-20 07:16:45,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 27
[2021-11-20 07:16:45,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 28
[2021-11-20 07:16:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:16:45,310 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-20 07:16:45,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:16:45,569 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-20 07:16:45,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75277794]
[2021-11-20 07:16:45,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75277794] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:16:45,570 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:16:45,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12
[2021-11-20 07:16:45,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108584897]
[2021-11-20 07:16:45,570 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-20 07:16:45,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-11-20 07:16:45,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-20 07:16:45,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-11-20 07:16:45,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2021-11-20 07:16:45,573 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-20 07:16:45,879 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions.
[2021-11-20 07:16:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-20 07:16:45,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-11-20 07:16:45,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-20 07:16:45,880 INFO L225 Difference]: With dead ends: 12
[2021-11-20 07:16:45,880 INFO L226 Difference]: Without dead ends: 0
[2021-11-20 07:16:45,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240
[2021-11-20 07:16:45,882 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-20 07:16:45,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 21 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 1 Unchecked, 0.1s Time]
[2021-11-20 07:16:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-11-20 07:16:45,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-11-20 07:16:45,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:45,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-11-20 07:16:45,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11
[2021-11-20 07:16:45,884 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-20 07:16:45,884 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-11-20 07:16:45,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-20 07:16:45,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-11-20 07:16:45,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-11-20 07:16:45,896 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-20 07:16:45,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-20 07:16:46,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3
[2021-11-20 07:16:46,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-11-20 07:16:46,140 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-11-20 07:16:46,140 INFO L858 garLoopResultBuilder]: For program point L23(lines 23 27) no Hoare annotation was computed.
[2021-11-20 07:16:46,140 INFO L858 garLoopResultBuilder]: For program point L23-1(lines 16 29) no Hoare annotation was computed.
[2021-11-20 07:16:46,141 INFO L858 garLoopResultBuilder]: For program point L23-2(lines 23 27) no Hoare annotation was computed.
[2021-11-20 07:16:46,141 INFO L861 garLoopResultBuilder]: At program point L46(lines 31 47) the Hoare annotation is: true
[2021-11-20 07:16:46,141 INFO L858 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed.
[2021-11-20 07:16:46,141 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-11-20 07:16:46,141 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-11-20 07:16:46,142 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-11-20 07:16:46,142 INFO L854 garLoopResultBuilder]: At program point L28(lines 16 29) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fabs_float_#res#1| |ULTIMATE.start_fabs_float_#res#1|)) (not (fp.eq |ULTIMATE.start_fabs_float_~x#1| |ULTIMATE.start_fabs_float_~x#1|)))
[2021-11-20 07:16:46,142 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed.
[2021-11-20 07:16:46,142 INFO L858 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed.
[2021-11-20 07:16:46,142 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fabs_float_~x#1| |ULTIMATE.start_fabs_float_~x#1|))
[2021-11-20 07:16:46,143 INFO L854 garLoopResultBuilder]: At program point L14(line 14) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fabs_float_#res#1| |ULTIMATE.start_fabs_float_#res#1|)) (not (fp.eq |ULTIMATE.start_fabs_float_~x#1| |ULTIMATE.start_fabs_float_~x#1|)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|))
[2021-11-20 07:16:46,143 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 44) no Hoare annotation was computed.
[2021-11-20 07:16:46,146 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-11-20 07:16:46,148 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-20 07:16:46,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:16:46 BoogieIcfgContainer
[2021-11-20 07:16:46,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-20 07:16:46,161 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-20 07:16:46,161 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-20 07:16:46,162 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-20 07:16:46,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:16:44" (3/4) ...
[2021-11-20 07:16:46,165 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-11-20 07:16:46,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges
[2021-11-20 07:16:46,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2021-11-20 07:16:46,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-11-20 07:16:46,178 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-11-20 07:16:46,207 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/witness.graphml
[2021-11-20 07:16:46,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-20 07:16:46,208 INFO L158 Benchmark]: Toolchain (without parser) took 2839.56ms. Allocated memory was 50.3MB in the beginning and 79.7MB in the end (delta: 29.4MB). Free memory was 26.4MB in the beginning and 59.0MB in the end (delta: -32.6MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB.
[2021-11-20 07:16:46,208 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 50.3MB. Free memory is still 29.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-20 07:16:46,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.62ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 26.2MB in the beginning and 46.2MB in the end (delta: -20.1MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB.
[2021-11-20 07:16:46,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.84ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 44.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-20 07:16:46,209 INFO L158 Benchmark]: Boogie Preprocessor took 46.95ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 43.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-20 07:16:46,210 INFO L158 Benchmark]: RCFGBuilder took 396.02ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 46.4MB in the end (delta: -3.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB.
[2021-11-20 07:16:46,210 INFO L158 Benchmark]: TraceAbstraction took 1998.98ms. Allocated memory is still 65.0MB. Free memory was 46.0MB in the beginning and 27.9MB in the end (delta: 18.1MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB.
[2021-11-20 07:16:46,211 INFO L158 Benchmark]: Witness Printer took 45.60ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 27.9MB in the beginning and 59.0MB in the end (delta: -31.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-20 07:16:46,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24ms. Allocated memory is still 50.3MB. Free memory is still 29.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 289.62ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 26.2MB in the beginning and 46.2MB in the end (delta: -20.1MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 51.84ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 44.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 46.95ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 43.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 396.02ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 46.4MB in the end (delta: -3.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 1998.98ms. Allocated memory is still 65.0MB. Free memory was 46.0MB in the beginning and 27.9MB in the end (delta: 18.1MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB.
* Witness Printer took 45.60ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 27.9MB in the beginning and 59.0MB in the end (delta: -31.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 42]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 6 QuantifiedInterpolants, 200 SizeOfPredicates, 13 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 18]: Loop Invariant
Derived loop invariant: !~fp.eq~FLOAT(x, x)
- InvariantResult [Line: 16]: Loop Invariant
Derived loop invariant: !~fp.eq~FLOAT(\result, \result) && !~fp.eq~FLOAT(x, x)
- InvariantResult [Line: 31]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 14]: Loop Invariant
Derived loop invariant: (!~fp.eq~FLOAT(\result, \result) && !~fp.eq~FLOAT(x, x)) && 1bv32 == \result
RESULT: Ultimate proved your program to be correct!
[2021-11-20 07:16:46,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a361a75-af6f-4e08-9dfa-5994d55da639/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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