./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc --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 ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:44:30,943 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:44:30,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:44:30,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:44:30,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:44:30,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:44:30,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:44:30,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:44:30,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:44:30,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:44:30,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:44:30,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:44:30,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:44:30,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:44:30,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:44:30,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:44:30,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:44:30,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:44:30,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:44:31,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:44:31,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:44:31,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:44:31,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:44:31,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:44:31,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:44:31,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:44:31,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:44:31,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:44:31,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:44:31,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:44:31,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:44:31,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:44:31,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:44:31,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:44:31,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:44:31,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:44:31,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:44:31,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:44:31,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:44:31,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:44:31,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:44:31,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 20:44:31,064 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:44:31,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:44:31,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:44:31,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:44:31,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:44:31,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:44:31,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:44:31,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:44:31,074 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:44:31,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:44:31,075 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:44:31,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:44:31,075 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:44:31,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:44:31,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:44:31,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:44:31,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:44:31,077 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:44:31,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:44:31,077 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:44:31,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:44:31,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:44:31,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:44:31,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:44:31,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:44:31,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:44:31,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:44:31,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:44:31,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:44:31,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:44:31,080 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:44:31,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:44:31,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:44:31,081 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_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e
[2022-11-02 20:44:31,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:44:31,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:44:31,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:44:31,418 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:44:31,418 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:44:31,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/floats-cbmc-regression/float20.i
[2022-11-02 20:44:31,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data/73b963ee3/5606e193027c4f50a7514c7fe8cce5dc/FLAGa9fd1fccf
[2022-11-02 20:44:32,014 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:44:32,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i
[2022-11-02 20:44:32,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data/73b963ee3/5606e193027c4f50a7514c7fe8cce5dc/FLAGa9fd1fccf
[2022-11-02 20:44:32,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data/73b963ee3/5606e193027c4f50a7514c7fe8cce5dc
[2022-11-02 20:44:32,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:44:32,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:44:32,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:44:32,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:44:32,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:44:32,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b1e51ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32, skipping insertion in model container
[2022-11-02 20:44:32,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:44:32,430 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:44:32,629 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045]
[2022-11-02 20:44:32,640 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319]
[2022-11-02 20:44:32,644 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477]
[2022-11-02 20:44:32,647 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:32,657 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:44:32,673 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045]
[2022-11-02 20:44:32,678 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319]
[2022-11-02 20:44:32,681 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477]
[2022-11-02 20:44:32,683 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:32,698 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:44:32,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32 WrapperNode
[2022-11-02 20:44:32,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:44:32,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:44:32,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:44:32,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:44:32,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,735 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47
[2022-11-02 20:44:32,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:44:32,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:44:32,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:44:32,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:44:32,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,755 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:44:32,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:44:32,758 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:44:32,758 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:44:32,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (1/1) ...
[2022-11-02 20:44:32,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:44:32,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:32,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:32,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:44:32,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:44:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:44:32,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:44:32,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:44:32,932 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:44:32,935 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:44:33,043 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:44:33,049 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:44:33,050 INFO L300 CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-02 20:44:33,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:33 BoogieIcfgContainer
[2022-11-02 20:44:33,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:44:33,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:44:33,054 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:44:33,059 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:44:33,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:44:32" (1/3) ...
[2022-11-02 20:44:33,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6818d3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:44:33, skipping insertion in model container
[2022-11-02 20:44:33,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:32" (2/3) ...
[2022-11-02 20:44:33,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6818d3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:44:33, skipping insertion in model container
[2022-11-02 20:44:33,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:33" (3/3) ...
[2022-11-02 20:44:33,062 INFO L112 eAbstractionObserver]: Analyzing ICFG float20.i
[2022-11-02 20:44:33,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:44:33,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2022-11-02 20:44:33,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:44:33,142 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b7b1e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:44:33,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-11-02 20:44:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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)
[2022-11-02 20:44:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-11-02 20:44:33,158 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:33,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:33,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:33,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:33,166 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times
[2022-11-02 20:44:33,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:44:33,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459294265]
[2022-11-02 20:44:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:44:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:33,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:33,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:44:33,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459294265]
[2022-11-02 20:44:33,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459294265] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:33,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:33,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:44:33,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950353222]
[2022-11-02 20:44:33,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:33,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:44:33,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:44:33,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:44:33,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:44:33,405 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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)
[2022-11-02 20:44:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:33,424 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions.
[2022-11-02 20:44:33,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:44:33,427 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6
[2022-11-02 20:44:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:33,435 INFO L225 Difference]: With dead ends: 43
[2022-11-02 20:44:33,436 INFO L226 Difference]: Without dead ends: 19
[2022-11-02 20:44:33,439 INFO L412 NwaCegarLoop]: 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
[2022-11-02 20:44:33,444 INFO L413 NwaCegarLoop]: 22 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, 22 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
[2022-11-02 20:44:33,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:44:33,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-11-02 20:44:33,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-11-02 20:44:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 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)
[2022-11-02 20:44:33,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions.
[2022-11-02 20:44:33,478 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6
[2022-11-02 20:44:33,479 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:33,479 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions.
[2022-11-02 20:44:33,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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)
[2022-11-02 20:44:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions.
[2022-11-02 20:44:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-11-02 20:44:33,480 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:33,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:33,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:44:33,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:33,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:33,482 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times
[2022-11-02 20:44:33,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:44:33,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291649368]
[2022-11-02 20:44:33,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:33,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:44:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:44:33,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:44:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:44:33,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:44:33,557 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:44:33,569 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2022-11-02 20:44:33,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2022-11-02 20:44:33,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining)
[2022-11-02 20:44:33,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 20:44:33,586 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-02 20:44:33,590 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:44:33,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:44:33 BoogieIcfgContainer
[2022-11-02 20:44:33,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:44:33,619 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:44:33,619 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:44:33,620 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:44:33,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:33" (3/4) ...
[2022-11-02 20:44:33,624 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-11-02 20:44:33,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:44:33,625 INFO L158 Benchmark]: Toolchain (without parser) took 1236.01ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 91.2MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:33,625 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:33,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.26ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 87.4MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:44:33,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.99ms. Allocated memory is still 115.3MB. Free memory was 87.4MB in the beginning and 86.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:33,632 INFO L158 Benchmark]: Boogie Preprocessor took 20.72ms. Allocated memory is still 115.3MB. Free memory was 86.0MB in the beginning and 84.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:44:33,633 INFO L158 Benchmark]: RCFGBuilder took 293.84ms. Allocated memory is still 115.3MB. Free memory was 84.9MB in the beginning and 75.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:44:33,634 INFO L158 Benchmark]: TraceAbstraction took 564.41ms. Allocated memory is still 115.3MB. Free memory was 74.8MB in the beginning and 91.2MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:33,634 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 115.3MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:33,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 308.26ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 87.4MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 35.99ms. Allocated memory is still 115.3MB. Free memory was 87.4MB in the beginning and 86.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 20.72ms. Allocated memory is still 115.3MB. Free memory was 86.0MB in the beginning and 84.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 293.84ms. Allocated memory is still 115.3MB. Free memory was 84.9MB in the beginning and 75.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 564.41ms. Allocated memory is still 115.3MB. Free memory was 74.8MB in the beginning and 91.2MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.95ms. Allocated memory is still 115.3MB. Free memory is still 91.2MB. 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: 21]: 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 21, overapproximation of someBinaryArithmeticFLOAToperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18.
Possible FailurePath:
[L48] float f=__VERIFIER_nondet_float();
[L49] CALL bug(f)
[L17] COND FALSE !(!(min == 0x1.fffffep-105f))
VAL [\old(min)=53, min=53]
[L18] float modifier = (0x1.0p-23 * (1<<1));
[L19] float ulpdiff = min * modifier;
VAL [\old(min)=53, min=53]
[L21] COND TRUE !(ulpdiff == 0x1p-126f)
VAL [\old(min)=53, min=53]
[L21] reach_error()
VAL [\old(min)=53, min=53]
- UnprovableResult [Line: 32]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: Not analyzed.
- UnprovableResult [Line: 42]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 22 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, 22 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=23occurred 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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
[2022-11-02 20:44:33,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc --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 ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:44:36,112 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:44:36,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:44:36,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:44:36,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:44:36,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:44:36,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:44:36,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:44:36,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:44:36,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:44:36,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:44:36,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:44:36,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:44:36,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:44:36,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:44:36,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:44:36,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:44:36,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:44:36,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:44:36,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:44:36,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:44:36,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:44:36,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:44:36,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:44:36,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:44:36,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:44:36,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:44:36,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:44:36,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:44:36,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:44:36,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:44:36,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:44:36,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:44:36,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:44:36,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:44:36,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:44:36,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:44:36,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:44:36,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:44:36,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:44:36,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:44:36,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2022-11-02 20:44:36,290 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:44:36,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:44:36,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:44:36,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:44:36,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:44:36,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:44:36,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:44:36,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:44:36,295 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:44:36,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:44:36,296 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:44:36,296 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:44:36,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:44:36,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:44:36,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:44:36,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:44:36,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:44:36,298 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-02 20:44:36,298 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-02 20:44:36,298 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:44:36,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:44:36,299 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:44:36,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:44:36,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:44:36,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:44:36,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:44:36,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:44:36,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:44:36,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:44:36,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:44:36,301 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-02 20:44:36,301 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-02 20:44:36,302 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:44:36,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:44:36,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:44:36,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-02 20:44:36,303 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_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e
[2022-11-02 20:44:36,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:44:36,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:44:36,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:44:36,704 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:44:36,705 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:44:36,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/floats-cbmc-regression/float20.i
[2022-11-02 20:44:36,782 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data/0bc8409d2/24db759e62b14f3f9732b1344b9c1f44/FLAG951d2f0d8
[2022-11-02 20:44:37,357 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:44:37,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i
[2022-11-02 20:44:37,367 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data/0bc8409d2/24db759e62b14f3f9732b1344b9c1f44/FLAG951d2f0d8
[2022-11-02 20:44:37,709 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/data/0bc8409d2/24db759e62b14f3f9732b1344b9c1f44
[2022-11-02 20:44:37,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:44:37,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:44:37,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:44:37,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:44:37,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:44:37,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:37" (1/1) ...
[2022-11-02 20:44:37,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd8e975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:37, skipping insertion in model container
[2022-11-02 20:44:37,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:37" (1/1) ...
[2022-11-02 20:44:37,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:44:37,751 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:44:37,898 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045]
[2022-11-02 20:44:37,908 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319]
[2022-11-02 20:44:37,913 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477]
[2022-11-02 20:44:37,916 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:37,935 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:44:37,975 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045]
[2022-11-02 20:44:38,003 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319]
[2022-11-02 20:44:38,009 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_cc890772-e224-4058-a28b-3758e21b2393/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477]
[2022-11-02 20:44:38,012 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:38,033 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:44:38,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38 WrapperNode
[2022-11-02 20:44:38,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:44:38,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:44:38,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:44:38,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:44:38,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,090 INFO L138 Inliner]: procedures = 19, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48
[2022-11-02 20:44:38,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:44:38,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:44:38,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:44:38,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:44:38,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,130 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:44:38,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:44:38,140 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:44:38,140 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:44:38,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (1/1) ...
[2022-11-02 20:44:38,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:44:38,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:38,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:38,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:44:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:44:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-02 20:44:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:44:38,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:44:38,306 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:44:38,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:44:40,552 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:44:40,559 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:44:40,559 INFO L300 CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-02 20:44:40,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:40 BoogieIcfgContainer
[2022-11-02 20:44:40,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:44:40,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:44:40,580 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:44:40,583 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:44:40,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:44:37" (1/3) ...
[2022-11-02 20:44:40,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a5c0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:44:40, skipping insertion in model container
[2022-11-02 20:44:40,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:38" (2/3) ...
[2022-11-02 20:44:40,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a5c0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:44:40, skipping insertion in model container
[2022-11-02 20:44:40,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:40" (3/3) ...
[2022-11-02 20:44:40,598 INFO L112 eAbstractionObserver]: Analyzing ICFG float20.i
[2022-11-02 20:44:40,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:44:40,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2022-11-02 20:44:40,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:44:40,680 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4dba62b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:44:40,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2022-11-02 20:44:40,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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)
[2022-11-02 20:44:40,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-11-02 20:44:40,693 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:40,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:40,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:40,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:40,700 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times
[2022-11-02 20:44:40,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:44:40,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544216543]
[2022-11-02 20:44:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:40,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:44:40,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:44:40,721 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:40,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-02 20:44:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:40,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-02 20:44:40,876 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:40,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:44:40,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:44:40,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544216543]
[2022-11-02 20:44:40,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544216543] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:40,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:40,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:44:40,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292969706]
[2022-11-02 20:44:40,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:40,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:44:40,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:44:40,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:44:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:44:40,954 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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)
[2022-11-02 20:44:40,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:40,979 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions.
[2022-11-02 20:44:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:44:40,982 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6
[2022-11-02 20:44:40,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:41,000 INFO L225 Difference]: With dead ends: 43
[2022-11-02 20:44:41,001 INFO L226 Difference]: Without dead ends: 19
[2022-11-02 20:44:41,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:44:41,015 INFO L413 NwaCegarLoop]: 22 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, 22 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
[2022-11-02 20:44:41,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:44:41,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-11-02 20:44:41,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-11-02 20:44:41,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 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)
[2022-11-02 20:44:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions.
[2022-11-02 20:44:41,060 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6
[2022-11-02 20:44:41,061 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:41,061 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions.
[2022-11-02 20:44:41,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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)
[2022-11-02 20:44:41,062 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions.
[2022-11-02 20:44:41,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-11-02 20:44:41,062 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:41,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:41,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:41,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:44:41,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:41,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:41,289 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times
[2022-11-02 20:44:41,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:44:41,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729323295]
[2022-11-02 20:44:41,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:41,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:44:41,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:44:41,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:41,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-02 20:44:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:41,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-11-02 20:44:41,409 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:42,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:42,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:44:42,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:44:42,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729323295]
[2022-11-02 20:44:42,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729323295] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:42,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:42,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:44:42,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943334288]
[2022-11-02 20:44:42,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:42,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:44:42,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:44:42,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:44:42,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:44:42,061 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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)
[2022-11-02 20:44:44,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-11-02 20:44:44,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:44,699 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions.
[2022-11-02 20:44:44,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:44:44,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 6
[2022-11-02 20:44:44,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:44,700 INFO L225 Difference]: With dead ends: 19
[2022-11-02 20:44:44,701 INFO L226 Difference]: Without dead ends: 17
[2022-11-02 20:44:44,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:44:44,703 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:44,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 1 Unknown, 4 Unchecked, 2.4s Time]
[2022-11-02 20:44:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2022-11-02 20:44:44,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2022-11-02 20:44:44,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 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)
[2022-11-02 20:44:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions.
[2022-11-02 20:44:44,713 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6
[2022-11-02 20:44:44,713 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:44,714 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions.
[2022-11-02 20:44:44,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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)
[2022-11-02 20:44:44,715 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions.
[2022-11-02 20:44:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2022-11-02 20:44:44,716 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:44,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:44,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:44,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:44:44,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:44,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:44,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1928169781, now seen corresponding path program 1 times
[2022-11-02 20:44:44,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:44:44,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715313774]
[2022-11-02 20:44:44,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:44,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:44:44,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:44:44,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:44,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-11-02 20:44:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:45,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-11-02 20:44:45,190 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:58,059 WARN L234 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-02 20:44:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:59,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:44:59,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:44:59,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715313774]
[2022-11-02 20:44:59,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715313774] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:59,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:59,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:44:59,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899272542]
[2022-11-02 20:44:59,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:59,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:44:59,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:44:59,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:44:59,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:44:59,360 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2022-11-02 20:45:01,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-11-02 20:45:01,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:01,824 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions.
[2022-11-02 20:45:01,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:45:01,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 10
[2022-11-02 20:45:01,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:01,825 INFO L225 Difference]: With dead ends: 17
[2022-11-02 20:45:01,825 INFO L226 Difference]: Without dead ends: 15
[2022-11-02 20:45:01,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:45:01,827 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:01,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 1 Unknown, 7 Unchecked, 2.5s Time]
[2022-11-02 20:45:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2022-11-02 20:45:01,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2022-11-02 20:45:01,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 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)
[2022-11-02 20:45:01,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions.
[2022-11-02 20:45:01,831 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 10
[2022-11-02 20:45:01,831 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:01,831 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions.
[2022-11-02 20:45:01,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2022-11-02 20:45:01,832 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions.
[2022-11-02 20:45:01,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-11-02 20:45:01,832 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:45:01,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:45:01,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:02,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:02,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:02,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:02,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1162826544, now seen corresponding path program 1 times
[2022-11-02 20:45:02,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:02,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297937154]
[2022-11-02 20:45:02,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:02,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:02,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:02,036 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:02,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-11-02 20:45:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:02,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:45:02,322 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:45:03,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:03,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:03,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297937154]
[2022-11-02 20:45:03,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297937154] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:03,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:03,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:45:03,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378772916]
[2022-11-02 20:45:03,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:03,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:45:03,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:03,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:45:03,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:45:03,365 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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)
[2022-11-02 20:45:05,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-11-02 20:45:06,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:06,062 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions.
[2022-11-02 20:45:06,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:45:06,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14
[2022-11-02 20:45:06,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:06,063 INFO L225 Difference]: With dead ends: 15
[2022-11-02 20:45:06,063 INFO L226 Difference]: Without dead ends: 0
[2022-11-02 20:45:06,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:45:06,064 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:06,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 1 Unknown, 8 Unchecked, 2.4s Time]
[2022-11-02 20:45:06,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 20:45:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 20:45:06,066 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)
[2022-11-02 20:45:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 20:45:06,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14
[2022-11-02 20:45:06,066 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:06,066 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:45:06,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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)
[2022-11-02 20:45:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 20:45:06,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 20:45:06,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2022-11-02 20:45:06,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2022-11-02 20:45:06,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining)
[2022-11-02 20:45:06,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:06,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:06,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 20:45:06,331 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed.
[2022-11-02 20:45:06,332 INFO L899 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed.
[2022-11-02 20:45:06,332 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed.
[2022-11-02 20:45:06,332 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed.
[2022-11-02 20:45:06,332 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 20:45:06,332 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed.
[2022-11-02 20:45:06,332 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 20:45:06,333 INFO L895 garLoopResultBuilder]: At program point L32-3(lines 26 35) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven)
[2022-11-02 20:45:06,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 20:45:06,333 INFO L902 garLoopResultBuilder]: At program point L57(lines 47 58) the Hoare annotation is: true
[2022-11-02 20:45:06,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed.
[2022-11-02 20:45:06,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 20:45:06,333 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed.
[2022-11-02 20:45:06,333 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed.
[2022-11-02 20:45:06,334 INFO L895 garLoopResultBuilder]: At program point L21-3(lines 16 24) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven)
[2022-11-02 20:45:06,334 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed.
[2022-11-02 20:45:06,334 INFO L899 garLoopResultBuilder]: For program point L17-2(line 17) no Hoare annotation was computed.
[2022-11-02 20:45:06,334 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed.
[2022-11-02 20:45:06,334 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed.
[2022-11-02 20:45:06,334 INFO L902 garLoopResultBuilder]: At program point L42-3(lines 37 45) the Hoare annotation is: true
[2022-11-02 20:45:06,334 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed.
[2022-11-02 20:45:06,334 INFO L899 garLoopResultBuilder]: For program point L38-2(line 38) no Hoare annotation was computed.
[2022-11-02 20:45:06,335 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed.
[2022-11-02 20:45:06,338 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2022-11-02 20:45:06,345 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:45:06,352 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2022-11-02 20:45:06,357 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2022-11-02 20:45:06,358 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2022-11-02 20:45:06,358 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2022-11-02 20:45:06,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:45:06 BoogieIcfgContainer
[2022-11-02 20:45:06,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:45:06,361 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:45:06,361 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:45:06,362 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:45:06,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:44:40" (3/4) ...
[2022-11-02 20:45:06,366 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-02 20:45:06,378 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2022-11-02 20:45:06,378 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2022-11-02 20:45:06,378 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-02 20:45:06,379 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 20:45:06,420 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:45:06,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:45:06,421 INFO L158 Benchmark]: Toolchain (without parser) took 28706.48ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.6MB in the beginning and 47.0MB in the end (delta: -11.4MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB.
[2022-11-02 20:45:06,422 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 47.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:45:06,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.67ms. Allocated memory is still 58.7MB. Free memory was 35.5MB in the beginning and 39.7MB in the end (delta: -4.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2022-11-02 20:45:06,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.91ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 38.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:45:06,423 INFO L158 Benchmark]: Boogie Preprocessor took 46.56ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 36.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:45:06,423 INFO L158 Benchmark]: RCFGBuilder took 2421.30ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 27.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:45:06,424 INFO L158 Benchmark]: TraceAbstraction took 25780.42ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 26.2MB in the beginning and 49.5MB in the end (delta: -23.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:45:06,425 INFO L158 Benchmark]: Witness Printer took 59.98ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 47.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:45:06,428 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 47.4kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 320.67ms. Allocated memory is still 58.7MB. Free memory was 35.5MB in the beginning and 39.7MB in the end (delta: -4.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 51.91ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 38.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 46.56ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 36.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 2421.30ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 27.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 25780.42ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 26.2MB in the beginning and 49.5MB in the end (delta: -23.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 59.98ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 47.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor:
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
- GenericResult: Unfinished Backtranslation
Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
* 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: 21]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 32]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- 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, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 25.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 7.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 19 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 47 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 3 QuantifiedInterpolants, 163 SizeOfPredicates, 12 NumberOfNonLiveVariables, 102 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
3 specifications checked. All of them hold
- InvariantResult [Line: 16]: Loop Invariant
[2022-11-02 20:45:06,446 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2022-11-02 20:45:06,447 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven
- InvariantResult [Line: 26]: Loop Invariant
[2022-11-02 20:45:06,447 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
[2022-11-02 20:45:06,447 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven
Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven
- InvariantResult [Line: 37]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 47]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2022-11-02 20:45:06,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc890772-e224-4058-a28b-3758e21b2393/bin/uautomizer-Dbtcem3rbc/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