./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0661a.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0661a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y --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 435d2cdf341382667c7bd6209addbdb4d7d5465501d562ccc5200a5ca5b72f0f
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:35:48,614 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:35:48,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:35:48,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:35:48,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:35:48,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:35:48,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:35:48,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:35:48,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:35:48,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:35:48,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:35:48,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:35:48,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:35:48,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:35:48,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:35:48,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:35:48,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:35:48,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:35:48,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:35:48,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:35:48,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:35:48,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:35:48,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:35:48,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:35:48,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:35:48,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:35:48,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:35:48,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:35:48,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:35:48,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:35:48,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:35:48,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:35:48,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:35:48,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:35:48,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:35:48,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:35:48,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:35:48,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:35:48,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:35:48,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:35:48,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:35:48,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 17:35:48,831 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:35:48,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:35:48,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:35:48,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:35:48,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:35:48,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:35:48,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:35:48,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:35:48,839 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:35:48,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:35:48,841 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:35:48,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:35:48,841 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:35:48,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:35:48,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:35:48,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:35:48,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:35:48,843 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:35:48,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:35:48,843 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:35:48,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:35:48,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:35:48,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:35:48,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:35:48,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:35:48,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:35:48,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:35:48,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:35:48,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:35:48,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 17:35:48,862 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:35:48,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:35:48,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:35:48,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:35:48,864 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_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 435d2cdf341382667c7bd6209addbdb4d7d5465501d562ccc5200a5ca5b72f0f
[2021-11-13 17:35:49,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:35:49,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:35:49,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:35:49,235 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:35:49,236 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:35:49,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-newlib/float_req_bl_0661a.c
[2021-11-13 17:35:49,347 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data/753832c3c/89d026acb78f4ab285dbbe6c82fa4439/FLAG781959801
[2021-11-13 17:35:49,940 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:35:49,941 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/sv-benchmarks/c/float-newlib/float_req_bl_0661a.c
[2021-11-13 17:35:49,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data/753832c3c/89d026acb78f4ab285dbbe6c82fa4439/FLAG781959801
[2021-11-13 17:35:50,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data/753832c3c/89d026acb78f4ab285dbbe6c82fa4439
[2021-11-13 17:35:50,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:35:50,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:35:50,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:35:50,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:35:50,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:35:50,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9548bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50, skipping insertion in model container
[2021-11-13 17:35:50,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:35:50,358 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:35:50,674 WARN L228 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_31900bb2-f736-4d8d-af26-a36429a635d9/sv-benchmarks/c/float-newlib/float_req_bl_0661a.c[5271,5284]
[2021-11-13 17:35:50,677 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:35:50,690 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:35:50,747 WARN L228 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_31900bb2-f736-4d8d-af26-a36429a635d9/sv-benchmarks/c/float-newlib/float_req_bl_0661a.c[5271,5284]
[2021-11-13 17:35:50,748 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:35:50,771 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:35:50,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50 WrapperNode
[2021-11-13 17:35:50,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:35:50,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:35:50,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:35:50,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:35:50,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:35:50,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:35:50,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:35:50,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:35:50,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:35:50,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:35:50,911 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:35:50,912 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:35:50,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (1/1) ...
[2021-11-13 17:35:50,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:35:50,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:35:50,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:35:50,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:35:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 17:35:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:35:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2021-11-13 17:35:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-11-13 17:35:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2021-11-13 17:35:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float
[2021-11-13 17:35:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float
[2021-11-13 17:35:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:35:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:35:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-11-13 17:35:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real
[2021-11-13 17:35:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float
[2021-11-13 17:35:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float
[2021-11-13 17:35:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:35:51,736 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:35:51,736 INFO L299 CfgBuilder]: Removed 14 assume(true) statements.
[2021-11-13 17:35:51,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:35:51 BoogieIcfgContainer
[2021-11-13 17:35:51,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:35:51,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:35:51,746 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:35:51,753 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:35:51,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:35:50" (1/3) ...
[2021-11-13 17:35:51,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3210d803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:35:51, skipping insertion in model container
[2021-11-13 17:35:51,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:50" (2/3) ...
[2021-11-13 17:35:51,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3210d803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:35:51, skipping insertion in model container
[2021-11-13 17:35:51,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:35:51" (3/3) ...
[2021-11-13 17:35:51,757 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0661a.c
[2021-11-13 17:35:51,762 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:35:51,762 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 17:35:51,820 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:35:51,829 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:35:51,830 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 17:35:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:35:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-11-13 17:35:51,865 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:35:51,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:51,866 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:35:51,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1457381495, now seen corresponding path program 1 times
[2021-11-13 17:35:51,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:51,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652774435]
[2021-11-13 17:35:51,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:51,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:35:52,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:35:52,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:35:52,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652774435]
[2021-11-13 17:35:52,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652774435] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:35:52,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:35:52,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 17:35:52,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058905420]
[2021-11-13 17:35:52,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:35:52,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:35:52,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:35:52,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:35:52,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:35:52,280 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:35:52,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:35:52,355 INFO L93 Difference]: Finished difference Result 181 states and 294 transitions.
[2021-11-13 17:35:52,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:35:52,361 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-11-13 17:35:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:35:52,377 INFO L225 Difference]: With dead ends: 181
[2021-11-13 17:35:52,377 INFO L226 Difference]: Without dead ends: 88
[2021-11-13 17:35:52,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:35:52,390 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:35:52,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 6.36ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:35:52,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2021-11-13 17:35:52,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88.
[2021-11-13 17:35:52,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 81 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:35:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions.
[2021-11-13 17:35:52,479 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 11
[2021-11-13 17:35:52,479 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:35:52,480 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions.
[2021-11-13 17:35:52,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:35:52,480 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions.
[2021-11-13 17:35:52,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-11-13 17:35:52,482 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:35:52,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:35:52,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 17:35:52,486 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:35:52,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:35:52,491 INFO L85 PathProgramCache]: Analyzing trace with hash 413175488, now seen corresponding path program 1 times
[2021-11-13 17:35:52,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:35:52,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324040688]
[2021-11-13 17:35:52,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:35:52,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:35:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:35:52,647 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:35:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:35:52,759 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:35:52,760 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 17:35:52,767 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 17:35:52,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-13 17:35:52,778 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-11-13 17:35:52,782 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:35:52,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:35:52 BoogieIcfgContainer
[2021-11-13 17:35:52,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:35:52,870 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:35:52,870 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:35:52,871 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:35:52,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:35:51" (3/4) ...
[2021-11-13 17:35:52,876 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-13 17:35:52,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:35:52,878 INFO L158 Benchmark]: Toolchain (without parser) took 2575.24ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 63.1MB in the beginning and 79.6MB in the end (delta: -16.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB.
[2021-11-13 17:35:52,878 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 107.0MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:35:52,880 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.34ms. Allocated memory is still 107.0MB. Free memory was 62.9MB in the beginning and 76.4MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 17:35:52,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.53ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:35:52,888 INFO L158 Benchmark]: Boogie Preprocessor took 59.51ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 72.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:35:52,889 INFO L158 Benchmark]: RCFGBuilder took 828.02ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 51.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
[2021-11-13 17:35:52,890 INFO L158 Benchmark]: TraceAbstraction took 1123.73ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 50.5MB in the beginning and 80.3MB in the end (delta: -29.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:35:52,890 INFO L158 Benchmark]: Witness Printer took 6.15ms. Allocated memory is still 130.0MB. Free memory was 80.3MB in the beginning and 79.6MB in the end (delta: 648.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:35:52,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.39ms. Allocated memory is still 107.0MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 460.34ms. Allocated memory is still 107.0MB. Free memory was 62.9MB in the beginning and 76.4MB in the end (delta: -13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 76.53ms. Allocated memory is still 107.0MB. Free memory was 76.4MB in the beginning and 74.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 59.51ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 72.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 828.02ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 51.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
* TraceAbstraction took 1123.73ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 50.5MB in the beginning and 80.3MB in the end (delta: -29.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 6.15ms. Allocated memory is still 130.0MB. Free memory was 80.3MB in the beginning and 79.6MB in the end (delta: 648.2kB). 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: 230]: 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 229, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 219, overapproximation of someBinaryArithmeticFLOAToperation at line 137.
Possible FailurePath:
[L29-L34] static const float atanhi_atan[] = {
4.6364760399e-01,
7.8539812565e-01,
9.8279368877e-01,
1.5707962513e+00,
};
[L36-L41] static const float atanlo_atan[] = {
5.0121582440e-09,
3.7748947079e-08,
3.4473217170e-08,
7.5497894159e-08,
};
[L43-L47] static const float aT_atan[] = {
3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01,
9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02,
4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02,
};
[L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30,
pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00,
pi = 3.1415927410e+00;
[L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0,
pi_lo_atan2 = -8.7422776573e-08;
VAL [aT_atan={10:0}, atanhi_atan={6:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0]
[L218] float x = __VERIFIER_nondet_float();
[L219] float y = -0.0f;
VAL [aT_atan={10:0}, atanhi_atan={6:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0]
[L226] COND TRUE x > 0.0f
[L227] CALL, EXPR __ieee754_atan2f(y, x)
[L121] float z;
[L122] __int32_t k, m, hx, hy, ix, iy;
VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={10:0}, atanhi_atan={6:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0]
[L125] ieee_float_shape_type gf_u;
[L126] gf_u.value = (x)
[L127] EXPR gf_u.word
[L127] (hx) = gf_u.word
[L129] ix = hx & 0x7fffffff
VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={10:0}, atanhi_atan={6:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, hx=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0]
[L131] ieee_float_shape_type gf_u;
[L132] gf_u.value = (y)
[L133] EXPR gf_u.word
[L133] (hy) = gf_u.word
[L135] iy = hy & 0x7fffffff
VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={10:0}, atanhi_atan={6:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0]
[L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L)
[L137] return x + y;
VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={10:0}, atanhi_atan={6:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=-1, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0]
[L227] RET, EXPR __ieee754_atan2f(y, x)
[L227] float res = __ieee754_atan2f(y, x);
[L229] COND TRUE res != -0.0f
VAL [aT_atan={10:0}, atanhi_atan={6:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0]
[L230] reach_error()
VAL [aT_atan={10:0}, atanhi_atan={6:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.00ms 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, 132 mSDtfsCounter, 0 mSolverCounterSat, 6.36ms 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=92occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2021-11-13 17:35:52,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0661a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y --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 435d2cdf341382667c7bd6209addbdb4d7d5465501d562ccc5200a5ca5b72f0f
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:35:56,103 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:35:56,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:35:56,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:35:56,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:35:56,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:35:56,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:35:56,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:35:56,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:35:56,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:35:56,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:35:56,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:35:56,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:35:56,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:35:56,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:35:56,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:35:56,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:35:56,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:35:56,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:35:56,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:35:56,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:35:56,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:35:56,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:35:56,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:35:56,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:35:56,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:35:56,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:35:56,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:35:56,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:35:56,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:35:56,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:35:56,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:35:56,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:35:56,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:35:56,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:35:56,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:35:56,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:35:56,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:35:56,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:35:56,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:35:56,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:35:56,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-13 17:35:56,343 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:35:56,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:35:56,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:35:56,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:35:56,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:35:56,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:35:56,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:35:56,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:35:56,350 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:35:56,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:35:56,351 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:35:56,352 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:35:56,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:35:56,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:35:56,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:35:56,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:35:56,353 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 17:35:56,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 17:35:56,353 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:35:56,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:35:56,354 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:35:56,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:35:56,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:35:56,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:35:56,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:35:56,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:35:56,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:35:56,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:35:56,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:35:56,357 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 17:35:56,357 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 17:35:56,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:35:56,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:35:56,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:35:56,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:35:56,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 17:35:56,359 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_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 435d2cdf341382667c7bd6209addbdb4d7d5465501d562ccc5200a5ca5b72f0f
[2021-11-13 17:35:56,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:35:56,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:35:56,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:35:56,950 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:35:56,951 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:35:56,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-newlib/float_req_bl_0661a.c
[2021-11-13 17:35:57,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data/600d967ab/ae2525adc15943208876d28a2d682564/FLAG21e595bcb
[2021-11-13 17:35:57,737 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:35:57,738 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/sv-benchmarks/c/float-newlib/float_req_bl_0661a.c
[2021-11-13 17:35:57,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data/600d967ab/ae2525adc15943208876d28a2d682564/FLAG21e595bcb
[2021-11-13 17:35:58,055 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/data/600d967ab/ae2525adc15943208876d28a2d682564
[2021-11-13 17:35:58,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:35:58,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:35:58,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:35:58,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:35:58,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:35:58,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7d88d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58, skipping insertion in model container
[2021-11-13 17:35:58,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:35:58,143 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:35:58,518 WARN L228 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_31900bb2-f736-4d8d-af26-a36429a635d9/sv-benchmarks/c/float-newlib/float_req_bl_0661a.c[5271,5284]
[2021-11-13 17:35:58,522 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:35:58,546 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:35:58,671 WARN L228 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_31900bb2-f736-4d8d-af26-a36429a635d9/sv-benchmarks/c/float-newlib/float_req_bl_0661a.c[5271,5284]
[2021-11-13 17:35:58,675 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:35:58,715 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:35:58,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58 WrapperNode
[2021-11-13 17:35:58,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:35:58,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:35:58,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:35:58,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:35:58,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:35:58,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:35:58,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:35:58,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:35:58,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:35:58,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:35:58,939 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:35:58,939 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:35:58,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (1/1) ...
[2021-11-13 17:35:58,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:35:58,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:35:58,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:35:58,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:35:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4
[2021-11-13 17:35:59,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 17:35:59,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:35:59,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4
[2021-11-13 17:35:59,043 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float
[2021-11-13 17:35:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float
[2021-11-13 17:35:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-11-13 17:35:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:35:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:35:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4
[2021-11-13 17:35:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float
[2021-11-13 17:35:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float
[2021-11-13 17:35:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-13 17:35:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:36:12,084 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:36:12,084 INFO L299 CfgBuilder]: Removed 14 assume(true) statements.
[2021-11-13 17:36:12,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:36:12 BoogieIcfgContainer
[2021-11-13 17:36:12,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:36:12,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:36:12,090 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:36:12,094 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:36:12,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:35:58" (1/3) ...
[2021-11-13 17:36:12,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd865ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:36:12, skipping insertion in model container
[2021-11-13 17:36:12,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:35:58" (2/3) ...
[2021-11-13 17:36:12,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd865ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:36:12, skipping insertion in model container
[2021-11-13 17:36:12,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:36:12" (3/3) ...
[2021-11-13 17:36:12,098 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0661a.c
[2021-11-13 17:36:12,105 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:36:12,105 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 17:36:12,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:36:12,190 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:36:12,190 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 17:36:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:36:12,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-11-13 17:36:12,228 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:36:12,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:12,230 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:36:12,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1457381495, now seen corresponding path program 1 times
[2021-11-13 17:36:12,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:12,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850904296]
[2021-11-13 17:36:12,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:12,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:12,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:12,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 17:36:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:13,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-11-13 17:36:13,465 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:13,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:13,603 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:13,701 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:13,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850904296]
[2021-11-13 17:36:13,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850904296] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:13,703 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:13,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 17:36:13,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963218875]
[2021-11-13 17:36:13,707 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:13,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:36:13,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:13,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:36:13,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:36:13,767 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:13,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:36:13,815 INFO L93 Difference]: Finished difference Result 181 states and 294 transitions.
[2021-11-13 17:36:13,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:36:13,820 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2021-11-13 17:36:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:36:13,835 INFO L225 Difference]: With dead ends: 181
[2021-11-13 17:36:13,835 INFO L226 Difference]: Without dead ends: 88
[2021-11-13 17:36:13,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:36:13,852 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.83ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:36:13,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 3.83ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:36:13,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2021-11-13 17:36:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88.
[2021-11-13 17:36:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 81 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:36:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions.
[2021-11-13 17:36:13,955 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 11
[2021-11-13 17:36:13,955 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:36:13,956 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions.
[2021-11-13 17:36:13,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:13,956 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions.
[2021-11-13 17:36:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-11-13 17:36:13,957 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:36:13,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:13,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0
[2021-11-13 17:36:14,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:14,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:36:14,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:14,172 INFO L85 PathProgramCache]: Analyzing trace with hash 413175488, now seen corresponding path program 1 times
[2021-11-13 17:36:14,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:14,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736312724]
[2021-11-13 17:36:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:14,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:14,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:14,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 17:36:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:15,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjunts are in the unsatisfiable core
[2021-11-13 17:36:15,458 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:15,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24
[2021-11-13 17:36:16,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15
[2021-11-13 17:36:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:16,815 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:19,045 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:19,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736312724]
[2021-11-13 17:36:19,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736312724] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:19,046 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:19,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14
[2021-11-13 17:36:19,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802536849]
[2021-11-13 17:36:19,047 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:19,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2021-11-13 17:36:19,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:19,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-11-13 17:36:19,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182
[2021-11-13 17:36:19,050 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:19,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:36:19,817 INFO L93 Difference]: Finished difference Result 92 states and 130 transitions.
[2021-11-13 17:36:19,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 17:36:19,823 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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 13
[2021-11-13 17:36:19,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:36:19,826 INFO L225 Difference]: With dead ends: 92
[2021-11-13 17:36:19,826 INFO L226 Difference]: Without dead ends: 88
[2021-11-13 17:36:19,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240
[2021-11-13 17:36:19,829 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 7 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 408.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 428.03ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:36:19,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1244 Invalid, 75 Unknown, 0 Unchecked, 9.71ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 61 Unchecked, 428.03ms Time]
[2021-11-13 17:36:19,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2021-11-13 17:36:19,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88.
[2021-11-13 17:36:19,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4567901234567902) internal successors, (118), 81 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:36:19,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions.
[2021-11-13 17:36:19,844 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 13
[2021-11-13 17:36:19,844 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:36:19,845 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions.
[2021-11-13 17:36:19,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions.
[2021-11-13 17:36:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-11-13 17:36:19,847 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:36:19,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:19,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:20,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:20,055 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:36:20,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:20,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2003357637, now seen corresponding path program 1 times
[2021-11-13 17:36:20,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:20,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863578865]
[2021-11-13 17:36:20,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:20,057 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:20,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:20,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:20,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 17:36:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:21,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-11-13 17:36:21,292 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:21,831 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:22,582 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:22,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863578865]
[2021-11-13 17:36:22,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863578865] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:22,583 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:22,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10
[2021-11-13 17:36:22,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722191808]
[2021-11-13 17:36:22,584 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:22,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 17:36:22,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:22,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 17:36:22,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2021-11-13 17:36:22,586 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:23,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:36:23,527 INFO L93 Difference]: Finished difference Result 164 states and 231 transitions.
[2021-11-13 17:36:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 17:36:23,529 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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 18
[2021-11-13 17:36:23,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:36:23,531 INFO L225 Difference]: With dead ends: 164
[2021-11-13 17:36:23,532 INFO L226 Difference]: Without dead ends: 96
[2021-11-13 17:36:23,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182
[2021-11-13 17:36:23,537 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 341 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 382.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.09ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 437.28ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:36:23,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 400 Invalid, 28 Unknown, 0 Unchecked, 4.09ms Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 2 Unchecked, 437.28ms Time]
[2021-11-13 17:36:23,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2021-11-13 17:36:23,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81.
[2021-11-13 17:36:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 74 states have internal predecessors, (102), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:36:23,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions.
[2021-11-13 17:36:23,553 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 18
[2021-11-13 17:36:23,553 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:36:23,554 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions.
[2021-11-13 17:36:23,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions.
[2021-11-13 17:36:23,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-11-13 17:36:23,556 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:36:23,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:23,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:23,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:23,763 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:36:23,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:23,764 INFO L85 PathProgramCache]: Analyzing trace with hash -106452547, now seen corresponding path program 1 times
[2021-11-13 17:36:23,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:23,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735799149]
[2021-11-13 17:36:23,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:23,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:23,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:23,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:23,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-13 17:36:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:25,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-11-13 17:36:25,025 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:25,635 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:26,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:26,977 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:26,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735799149]
[2021-11-13 17:36:26,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735799149] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:26,978 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:26,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11
[2021-11-13 17:36:26,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419919352]
[2021-11-13 17:36:26,979 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:26,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2021-11-13 17:36:26,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:26,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-11-13 17:36:26,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2021-11-13 17:36:26,981 INFO L87 Difference]: Start difference. First operand 81 states and 110 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:27,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:36:27,740 INFO L93 Difference]: Finished difference Result 151 states and 205 transitions.
[2021-11-13 17:36:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 17:36:27,759 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 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 18
[2021-11-13 17:36:27,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:36:27,761 INFO L225 Difference]: With dead ends: 151
[2021-11-13 17:36:27,761 INFO L226 Difference]: Without dead ends: 85
[2021-11-13 17:36:27,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182
[2021-11-13 17:36:27,764 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 35 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 425.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.08ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 450.80ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:36:27,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 778 Invalid, 62 Unknown, 0 Unchecked, 3.08ms Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 26 Unchecked, 450.80ms Time]
[2021-11-13 17:36:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2021-11-13 17:36:27,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81.
[2021-11-13 17:36:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:36:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions.
[2021-11-13 17:36:27,777 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 18
[2021-11-13 17:36:27,778 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:36:27,778 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions.
[2021-11-13 17:36:27,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:27,779 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions.
[2021-11-13 17:36:27,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-11-13 17:36:27,780 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:36:27,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:27,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:27,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:27,982 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:36:27,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash -49194245, now seen corresponding path program 1 times
[2021-11-13 17:36:27,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:27,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628815024]
[2021-11-13 17:36:27,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:27,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:27,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:27,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:28,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-13 17:36:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:29,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 17:36:29,192 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:29,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:29,576 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:30,097 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:30,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628815024]
[2021-11-13 17:36:30,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628815024] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:30,098 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:30,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10
[2021-11-13 17:36:30,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802541667]
[2021-11-13 17:36:30,098 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:30,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-13 17:36:30,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:30,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-13 17:36:30,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2021-11-13 17:36:30,100 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:32,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:36:32,038 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions.
[2021-11-13 17:36:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 17:36:32,040 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 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 18
[2021-11-13 17:36:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:36:32,041 INFO L225 Difference]: With dead ends: 85
[2021-11-13 17:36:32,041 INFO L226 Difference]: Without dead ends: 81
[2021-11-13 17:36:32,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2021-11-13 17:36:32,043 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 176 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1603.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.33ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1684.36ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:36:32,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 435 Invalid, 34 Unknown, 0 Unchecked, 2.33ms Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1684.36ms Time]
[2021-11-13 17:36:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2021-11-13 17:36:32,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81.
[2021-11-13 17:36:32,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 74 states have internal predecessors, (100), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-11-13 17:36:32,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 108 transitions.
[2021-11-13 17:36:32,054 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 108 transitions. Word has length 18
[2021-11-13 17:36:32,055 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:36:32,055 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 108 transitions.
[2021-11-13 17:36:32,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:32,055 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 108 transitions.
[2021-11-13 17:36:32,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-11-13 17:36:32,057 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:36:32,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:32,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:32,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:32,266 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:36:32,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:32,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1527794826, now seen corresponding path program 1 times
[2021-11-13 17:36:32,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:32,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485399274]
[2021-11-13 17:36:32,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:32,268 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:32,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:32,269 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:32,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-11-13 17:36:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:33,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjunts are in the unsatisfiable core
[2021-11-13 17:36:33,448 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:33,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24
[2021-11-13 17:36:33,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13
[2021-11-13 17:36:34,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:34,877 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:36,292 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:36,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485399274]
[2021-11-13 17:36:36,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485399274] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:36:36,293 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:36,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13
[2021-11-13 17:36:36,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371610482]
[2021-11-13 17:36:36,294 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:36:36,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2021-11-13 17:36:36,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:36:36,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-11-13 17:36:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156
[2021-11-13 17:36:36,296 INFO L87 Difference]: Start difference. First operand 81 states and 108 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:37,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:36:37,023 INFO L93 Difference]: Finished difference Result 115 states and 151 transitions.
[2021-11-13 17:36:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-11-13 17:36:37,031 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 19
[2021-11-13 17:36:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:36:37,032 INFO L225 Difference]: With dead ends: 115
[2021-11-13 17:36:37,032 INFO L226 Difference]: Without dead ends: 47
[2021-11-13 17:36:37,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272
[2021-11-13 17:36:37,035 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 26 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 150.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.94ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 155.11ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:36:37,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 433 Invalid, 53 Unknown, 0 Unchecked, 1.94ms Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 27 Unchecked, 155.11ms Time]
[2021-11-13 17:36:37,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2021-11-13 17:36:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2021-11-13 17:36:37,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 42 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-11-13 17:36:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions.
[2021-11-13 17:36:37,042 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 19
[2021-11-13 17:36:37,042 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:36:37,043 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions.
[2021-11-13 17:36:37,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:36:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions.
[2021-11-13 17:36:37,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-11-13 17:36:37,058 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:36:37,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:37,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:37,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:37,259 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:36:37,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:36:37,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1298567107, now seen corresponding path program 1 times
[2021-11-13 17:36:37,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:36:37,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947978518]
[2021-11-13 17:36:37,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:37,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:36:37,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:36:37,263 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:36:37,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2021-11-13 17:36:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:38,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-11-13 17:36:38,518 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:39,375 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:40,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:36:40,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947978518]
[2021-11-13 17:36:40,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [atan_float_~hx~0]
[2021-11-13 17:36:40,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1930947138]
[2021-11-13 17:36:40,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:40,445 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2021-11-13 17:36:40,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/cvc4
[2021-11-13 17:36:40,450 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2021-11-13 17:36:40,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process
[2021-11-13 17:36:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:43,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-11-13 17:36:43,460 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:43,813 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:44,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [atan_float_~hx~0]
[2021-11-13 17:36:44,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441520430]
[2021-11-13 17:36:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:36:44,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:36:44,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:36:44,642 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:36:44,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2021-11-13 17:36:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:36:44,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-11-13 17:36:44,820 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:36:45,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:36:45,478 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:36:47,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [atan_float_~hx~0]
[2021-11-13 17:36:47,044 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:36:47,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0
[2021-11-13 17:36:47,045 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible
[2021-11-13 17:36:47,045 INFO L628 BasicCegarLoop]: Counterexample might be feasible
[2021-11-13 17:36:47,053 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 17:36:47,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:47,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0
[2021-11-13 17:36:47,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2021-11-13 17:36:47,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:36:47,686 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:36:47,688 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:36:47,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:36:47 BoogieIcfgContainer
[2021-11-13 17:36:47,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:36:47,711 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:36:47,711 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:36:47,711 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:36:47,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:36:12" (3/4) ...
[2021-11-13 17:36:47,716 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-13 17:36:47,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:36:47,717 INFO L158 Benchmark]: Toolchain (without parser) took 49657.20ms. Allocated memory was 50.3MB in the beginning and 79.7MB in the end (delta: 29.4MB). Free memory was 24.2MB in the beginning and 37.8MB in the end (delta: -13.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB.
[2021-11-13 17:36:47,717 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 50.3MB. Free memory is still 31.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:36:47,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.04ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.0MB in the beginning and 37.6MB in the end (delta: -13.5MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB.
[2021-11-13 17:36:47,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.36ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 35.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:36:47,719 INFO L158 Benchmark]: Boogie Preprocessor took 110.59ms. Allocated memory is still 60.8MB. Free memory was 35.3MB in the beginning and 32.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:36:47,720 INFO L158 Benchmark]: RCFGBuilder took 13148.47ms. Allocated memory is still 60.8MB. Free memory was 32.5MB in the beginning and 39.1MB in the end (delta: -6.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB.
[2021-11-13 17:36:47,720 INFO L158 Benchmark]: TraceAbstraction took 35620.82ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 38.6MB in the beginning and 38.4MB in the end (delta: 175.9kB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB.
[2021-11-13 17:36:47,721 INFO L158 Benchmark]: Witness Printer took 5.36ms. Allocated memory is still 79.7MB. Free memory was 38.4MB in the beginning and 37.8MB in the end (delta: 638.3kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:36:47,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 50.3MB. Free memory is still 31.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 655.04ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 24.0MB in the beginning and 37.6MB in the end (delta: -13.5MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 107.36ms. Allocated memory is still 60.8MB. Free memory was 37.6MB in the beginning and 35.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 110.59ms. Allocated memory is still 60.8MB. Free memory was 35.3MB in the beginning and 32.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 13148.47ms. Allocated memory is still 60.8MB. Free memory was 32.5MB in the beginning and 39.1MB in the end (delta: -6.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 35620.82ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 38.6MB in the beginning and 38.4MB in the end (delta: 175.9kB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB.
* Witness Printer took 5.36ms. Allocated memory is still 79.7MB. Free memory was 38.4MB in the beginning and 37.8MB in the end (delta: 638.3kB). 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: 230]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L29-L34] static const float atanhi_atan[] = {
4.6364760399e-01,
7.8539812565e-01,
9.8279368877e-01,
1.5707962513e+00,
};
[L36-L41] static const float atanlo_atan[] = {
5.0121582440e-09,
3.7748947079e-08,
3.4473217170e-08,
7.5497894159e-08,
};
[L43-L47] static const float aT_atan[] = {
3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01,
9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02,
4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02,
};
[L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30,
pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00,
pi = 3.1415927410e+00;
[L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0,
pi_lo_atan2 = -8.7422776573e-08;
[L218] float x = __VERIFIER_nondet_float();
[L219] float y = -0.0f;
[L226] COND TRUE x > 0.0f
[L227] CALL, EXPR __ieee754_atan2f(y, x)
[L121] float z;
[L122] __int32_t k, m, hx, hy, ix, iy;
[L125] ieee_float_shape_type gf_u;
[L126] gf_u.value = (x)
[L127] EXPR gf_u.word
[L127] (hx) = gf_u.word
[L129] ix = hx & 0x7fffffff
[L131] ieee_float_shape_type gf_u;
[L132] gf_u.value = (y)
[L133] EXPR gf_u.word
[L133] (hy) = gf_u.word
[L135] iy = hy & 0x7fffffff
[L136] COND FALSE !(((ix) > 0x7f800000L) || ((iy) > 0x7f800000L))
[L138] COND TRUE hx == 0x3f800000
[L139] CALL, EXPR atan_float(y)
[L54] float w, s1, s2, z;
[L55] __int32_t ix, hx, id;
[L58] ieee_float_shape_type gf_u;
[L59] gf_u.value = (x)
[L60] EXPR gf_u.word
[L60] (hx) = gf_u.word
[L62] ix = hx & 0x7fffffff
[L63] COND TRUE ix >= 0x50800000
[L64] COND TRUE ((ix) > 0x7f800000L)
[L65] return x + x;
[L139] RET, EXPR atan_float(y)
[L139] return atan_float(y);
[L227] RET, EXPR __ieee754_atan2f(y, x)
[L227] float res = __ieee754_atan2f(y, x);
[L229] COND TRUE res != -0.0f
[L230] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 35.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 586 SdHoareTripleChecker+Valid, 3155.58ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 585 mSDsluCounter, 3422 SdHoareTripleChecker+Invalid, 2970.45ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 116 IncrementalHoareTripleChecker+Unchecked, 2808 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 614 mSDtfsCounter, 112 mSolverCounterSat, 24.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 7.7s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 205 ConstructedInterpolants, 44 QuantifiedInterpolants, 1668 SizeOfPredicates, 50 NumberOfNonLiveVariables, 819 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2021-11-13 17:36:47,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31900bb2-f736-4d8d-af26-a36429a635d9/bin/uautomizer-YU5uOKAj3y/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:
UNKNOWN