./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 096883e9
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 77b3a373bd5532f9284ea33fd7b532cf320a99fa
.................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 77b3a373bd5532f9284ea33fd7b532cf320a99fa
......................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.2.0-096883e
[2020-12-01 23:19:00,001 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-12-01 23:19:00,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-12-01 23:19:00,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-12-01 23:19:00,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-12-01 23:19:00,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-12-01 23:19:00,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-12-01 23:19:00,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-12-01 23:19:00,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-12-01 23:19:00,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-12-01 23:19:00,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-12-01 23:19:00,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-12-01 23:19:00,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-12-01 23:19:00,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-12-01 23:19:00,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-12-01 23:19:00,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-12-01 23:19:00,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-12-01 23:19:00,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-12-01 23:19:00,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-12-01 23:19:00,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-12-01 23:19:00,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-12-01 23:19:00,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-12-01 23:19:00,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-12-01 23:19:00,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-12-01 23:19:00,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-12-01 23:19:00,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-12-01 23:19:00,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-12-01 23:19:00,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-12-01 23:19:00,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-12-01 23:19:00,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-12-01 23:19:00,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-12-01 23:19:00,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-12-01 23:19:00,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-12-01 23:19:00,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-12-01 23:19:00,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-12-01 23:19:00,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-12-01 23:19:00,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-12-01 23:19:00,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-12-01 23:19:00,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-12-01 23:19:00,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-12-01 23:19:00,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-12-01 23:19:00,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2020-12-01 23:19:00,187 INFO L113 SettingsManager]: Loading preferences was successful
[2020-12-01 23:19:00,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-12-01 23:19:00,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-12-01 23:19:00,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-12-01 23:19:00,192 INFO L138 SettingsManager]: * Use SBE=true
[2020-12-01 23:19:00,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-12-01 23:19:00,193 INFO L138 SettingsManager]: * sizeof long=4
[2020-12-01 23:19:00,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-12-01 23:19:00,193 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-12-01 23:19:00,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-12-01 23:19:00,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-12-01 23:19:00,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-12-01 23:19:00,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-12-01 23:19:00,196 INFO L138 SettingsManager]: * sizeof long double=12
[2020-12-01 23:19:00,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-12-01 23:19:00,196 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-12-01 23:19:00,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-12-01 23:19:00,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-12-01 23:19:00,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-12-01 23:19:00,198 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-12-01 23:19:00,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-12-01 23:19:00,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-01 23:19:00,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-12-01 23:19:00,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-12-01 23:19:00,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-12-01 23:19:00,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-12-01 23:19:00,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-12-01 23:19:00,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-12-01 23:19:00,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-12-01 23:19:00,200 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77b3a373bd5532f9284ea33fd7b532cf320a99fa
[2020-12-01 23:19:00,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-12-01 23:19:00,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-12-01 23:19:00,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-12-01 23:19:00,712 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-12-01 23:19:00,715 INFO L275 PluginConnector]: CDTParser initialized
[2020-12-01 23:19:00,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c
[2020-12-01 23:19:00,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239728fc7/39f0bc5397ea4c50a1c62aa9816649f3/FLAG0dde3e1fb
[2020-12-01 23:19:01,511 INFO L306 CDTParser]: Found 1 translation units.
[2020-12-01 23:19:01,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c
[2020-12-01 23:19:01,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239728fc7/39f0bc5397ea4c50a1c62aa9816649f3/FLAG0dde3e1fb
[2020-12-01 23:19:01,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/239728fc7/39f0bc5397ea4c50a1c62aa9816649f3
[2020-12-01 23:19:01,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-12-01 23:19:01,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2020-12-01 23:19:01,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-12-01 23:19:01,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-12-01 23:19:01,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-12-01 23:19:01,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:01" (1/1) ...
[2020-12-01 23:19:01,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74aea50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:01, skipping insertion in model container
[2020-12-01 23:19:01,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:01" (1/1) ...
[2020-12-01 23:19:01,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-12-01 23:19:01,630 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-12-01 23:19:01,957 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020]
[2020-12-01 23:19:01,961 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-01 23:19:01,972 INFO L203 MainTranslator]: Completed pre-run
[2020-12-01 23:19:02,033 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020]
[2020-12-01 23:19:02,037 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-01 23:19:02,061 INFO L208 MainTranslator]: Completed translation
[2020-12-01 23:19:02,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02 WrapperNode
[2020-12-01 23:19:02,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-12-01 23:19:02,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-12-01 23:19:02,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-12-01 23:19:02,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-12-01 23:19:02,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-12-01 23:19:02,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-12-01 23:19:02,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-12-01 23:19:02,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-12-01 23:19:02,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
[2020-12-01 23:19:02,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-12-01 23:19:02,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-12-01 23:19:02,226 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-12-01 23:19:02,227 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-12-01 23:19:02,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-01 23:19:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-12-01 23:19:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-12-01 23:19:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-12-01 23:19:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-12-01 23:19:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-12-01 23:19:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-12-01 23:19:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-12-01 23:19:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-12-01 23:19:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-12-01 23:19:02,838 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-12-01 23:19:02,839 INFO L298 CfgBuilder]: Removed 18 assume(true) statements.
[2020-12-01 23:19:02,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:02 BoogieIcfgContainer
[2020-12-01 23:19:02,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-12-01 23:19:02,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-12-01 23:19:02,844 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-12-01 23:19:02,848 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-12-01 23:19:02,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:19:01" (1/3) ...
[2020-12-01 23:19:02,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662ddb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:02, skipping insertion in model container
[2020-12-01 23:19:02,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:02" (2/3) ...
[2020-12-01 23:19:02,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662ddb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:02, skipping insertion in model container
[2020-12-01 23:19:02,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:02" (3/3) ...
[2020-12-01 23:19:02,856 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c
[2020-12-01 23:19:02,879 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-12-01 23:19:02,884 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-12-01 23:19:02,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-12-01 23:19:02,947 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-12-01 23:19:02,948 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-12-01 23:19:02,948 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-12-01 23:19:02,948 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-12-01 23:19:02,948 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-12-01 23:19:02,948 INFO L382 AbstractCegarLoop]: Difference is false
[2020-12-01 23:19:02,948 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-12-01 23:19:02,948 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-12-01 23:19:02,962 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states.
[2020-12-01 23:19:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-12-01 23:19:02,967 INFO L414 BasicCegarLoop]: Found error trace
[2020-12-01 23:19:02,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-01 23:19:02,968 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-01 23:19:02,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-01 23:19:02,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times
[2020-12-01 23:19:02,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-01 23:19:02,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798721540]
[2020-12-01 23:19:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-01 23:19:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-01 23:19:03,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-01 23:19:03,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798721540]
[2020-12-01 23:19:03,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-01 23:19:03,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-12-01 23:19:03,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497865784]
[2020-12-01 23:19:03,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-12-01 23:19:03,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-01 23:19:03,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-12-01 23:19:03,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-12-01 23:19:03,269 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states.
[2020-12-01 23:19:03,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-01 23:19:03,302 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions.
[2020-12-01 23:19:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-12-01 23:19:03,304 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12
[2020-12-01 23:19:03,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-01 23:19:03,323 INFO L225 Difference]: With dead ends: 69
[2020-12-01 23:19:03,323 INFO L226 Difference]: Without dead ends: 32
[2020-12-01 23:19:03,331 INFO L677 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
[2020-12-01 23:19:03,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-12-01 23:19:03,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2020-12-01 23:19:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2020-12-01 23:19:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions.
[2020-12-01 23:19:03,379 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12
[2020-12-01 23:19:03,380 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-01 23:19:03,380 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions.
[2020-12-01 23:19:03,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-12-01 23:19:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions.
[2020-12-01 23:19:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-12-01 23:19:03,382 INFO L414 BasicCegarLoop]: Found error trace
[2020-12-01 23:19:03,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-01 23:19:03,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-12-01 23:19:03,383 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-01 23:19:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-01 23:19:03,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times
[2020-12-01 23:19:03,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-01 23:19:03,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834913684]
[2020-12-01 23:19:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-01 23:19:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-01 23:19:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-01 23:19:03,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834913684]
[2020-12-01 23:19:03,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-01 23:19:03,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-01 23:19:03,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057872938]
[2020-12-01 23:19:03,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-01 23:19:03,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-01 23:19:03,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-01 23:19:03,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-01 23:19:03,524 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states.
[2020-12-01 23:19:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-01 23:19:03,557 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions.
[2020-12-01 23:19:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-12-01 23:19:03,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13
[2020-12-01 23:19:03,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-01 23:19:03,559 INFO L225 Difference]: With dead ends: 57
[2020-12-01 23:19:03,560 INFO L226 Difference]: Without dead ends: 32
[2020-12-01 23:19:03,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-01 23:19:03,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-12-01 23:19:03,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2020-12-01 23:19:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2020-12-01 23:19:03,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions.
[2020-12-01 23:19:03,582 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13
[2020-12-01 23:19:03,583 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-01 23:19:03,584 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions.
[2020-12-01 23:19:03,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-12-01 23:19:03,585 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions.
[2020-12-01 23:19:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-12-01 23:19:03,587 INFO L414 BasicCegarLoop]: Found error trace
[2020-12-01 23:19:03,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-01 23:19:03,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-12-01 23:19:03,588 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-01 23:19:03,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-01 23:19:03,589 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times
[2020-12-01 23:19:03,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-01 23:19:03,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023096243]
[2020-12-01 23:19:03,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-01 23:19:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-12-01 23:19:03,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-12-01 23:19:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-12-01 23:19:03,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-12-01 23:19:03,806 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-12-01 23:19:03,807 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-12-01 23:19:03,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-12-01 23:19:03,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:19:03 BoogieIcfgContainer
[2020-12-01 23:19:03,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-12-01 23:19:03,856 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2020-12-01 23:19:03,857 INFO L271 PluginConnector]: Initializing Witness Printer...
[2020-12-01 23:19:03,857 INFO L275 PluginConnector]: Witness Printer initialized
[2020-12-01 23:19:03,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:02" (3/4) ...
[2020-12-01 23:19:03,861 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2020-12-01 23:19:03,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2020-12-01 23:19:03,868 INFO L168 Benchmark]: Toolchain (without parser) took 2307.39 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 22.3 MB in the beginning and 27.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:03,870 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 46.1 MB. Free memory was 28.0 MB in the beginning and 27.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-12-01 23:19:03,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.97 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 20.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:03,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.42 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 20.7 MB in the beginning and 42.5 MB in the end (delta: -21.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:03,875 INFO L168 Benchmark]: Boogie Preprocessor took 57.16 ms. Allocated memory is still 58.7 MB. Free memory was 42.5 MB in the beginning and 40.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-12-01 23:19:03,877 INFO L168 Benchmark]: RCFGBuilder took 615.19 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 30.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:03,878 INFO L168 Benchmark]: TraceAbstraction took 1012.69 ms. Allocated memory is still 58.7 MB. Free memory was 30.1 MB in the beginning and 28.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:03,879 INFO L168 Benchmark]: Witness Printer took 5.37 ms. Allocated memory is still 58.7 MB. Free memory was 27.8 MB in the beginning and 27.5 MB in the end (delta: 265.1 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-12-01 23:19:03,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.43 ms. Allocated memory is still 46.1 MB. Free memory was 28.0 MB in the beginning and 27.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 501.97 ms. Allocated memory is still 46.1 MB. Free memory was 22.1 MB in the beginning and 20.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 101.42 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 20.7 MB in the beginning and 42.5 MB in the end (delta: -21.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 57.16 ms. Allocated memory is still 58.7 MB. Free memory was 42.5 MB in the beginning and 40.7 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB.
* RCFGBuilder took 615.19 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 30.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 1012.69 ms. Allocated memory is still 58.7 MB. Free memory was 30.1 MB in the beginning and 28.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB.
* Witness Printer took 5.37 ms. Allocated memory is still 58.7 MB. Free memory was 27.8 MB in the beginning and 27.5 MB in the end (delta: 265.1 kB). There was no memory consumed. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of bitwiseAnd at line 135, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74.
Possible FailurePath:
[L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01,
ln2_lo_log = 1.90821492927058770002e-10,
two54_log = 1.80143985094819840000e+16,
Lg1_log = 6.666666666666735130e-01,
Lg2_log = 3.999999999940941908e-01,
Lg3_log = 2.857142874366239149e-01,
Lg4_log = 2.222219843214978396e-01,
Lg5_log = 1.818357216161805012e-01,
Lg6_log = 1.531383769920937332e-01,
Lg7_log = 1.479819860511658591e-01;
[L45] static const double zero = 0.0;
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L148] double x = __VERIFIER_nondet_double();
[L150] EXPR x < 0 && isfinite_double(x)
[L129] __int32_t hx;
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L131] ieee_double_shape_type gh_u;
[L132] gh_u.value = (x)
[L133] EXPR gh_u.parts.msw
[L133] (hx) = gh_u.parts.msw
[L135] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31);
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L150] EXPR x < 0 && isfinite_double(x)
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L150] COND TRUE (x < 0 && isfinite_double(x))
[L48] double hfsq, f, s, z, R, w, t1, t2, dk;
[L49] __int32_t k, hx, i, j;
[L50] __uint32_t lx;
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L53] ieee_double_shape_type ew_u;
[L54] ew_u.value = (x)
[L55] EXPR ew_u.parts.msw
[L55] (hx) = ew_u.parts.msw
[L56] EXPR ew_u.parts.lsw
[L56] (lx) = ew_u.parts.lsw
[L59] k = 0
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L60] COND FALSE !(hx < 0x00100000)
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L73] COND TRUE hx >= 0x7ff00000
[L74] return x + x;
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L152] double res = __ieee754_log(x);
[L139] return x != x;
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
[L155] COND TRUE !isnan_double(res)
[L156] reach_error()
VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 91 SDtfs, 0 SDslu, 38 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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
Received shutdown request...
### Bit-precise run ###
This is Ultimate 0.2.0-096883e
[2020-12-01 23:19:06,451 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-12-01 23:19:06,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-12-01 23:19:06,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-12-01 23:19:06,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-12-01 23:19:06,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-12-01 23:19:06,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-12-01 23:19:06,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-12-01 23:19:06,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-12-01 23:19:06,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-12-01 23:19:06,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-12-01 23:19:06,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-12-01 23:19:06,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-12-01 23:19:06,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-12-01 23:19:06,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-12-01 23:19:06,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-12-01 23:19:06,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-12-01 23:19:06,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-12-01 23:19:06,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-12-01 23:19:06,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-12-01 23:19:06,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-12-01 23:19:06,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-12-01 23:19:06,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-12-01 23:19:06,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-12-01 23:19:06,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-12-01 23:19:06,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-12-01 23:19:06,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-12-01 23:19:06,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-12-01 23:19:06,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-12-01 23:19:06,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-12-01 23:19:06,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-12-01 23:19:06,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-12-01 23:19:06,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-12-01 23:19:06,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-12-01 23:19:06,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-12-01 23:19:06,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-12-01 23:19:06,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-12-01 23:19:06,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-12-01 23:19:06,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-12-01 23:19:06,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-12-01 23:19:06,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-12-01 23:19:06,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2020-12-01 23:19:06,611 INFO L113 SettingsManager]: Loading preferences was successful
[2020-12-01 23:19:06,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-12-01 23:19:06,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-12-01 23:19:06,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-12-01 23:19:06,615 INFO L138 SettingsManager]: * Use SBE=true
[2020-12-01 23:19:06,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-12-01 23:19:06,616 INFO L138 SettingsManager]: * sizeof long=4
[2020-12-01 23:19:06,616 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-12-01 23:19:06,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-12-01 23:19:06,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-12-01 23:19:06,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-12-01 23:19:06,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-12-01 23:19:06,619 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2020-12-01 23:19:06,619 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2020-12-01 23:19:06,619 INFO L138 SettingsManager]: * sizeof long double=12
[2020-12-01 23:19:06,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-12-01 23:19:06,620 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-12-01 23:19:06,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-12-01 23:19:06,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-12-01 23:19:06,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-12-01 23:19:06,621 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-12-01 23:19:06,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-12-01 23:19:06,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-01 23:19:06,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-12-01 23:19:06,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-12-01 23:19:06,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-12-01 23:19:06,622 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2020-12-01 23:19:06,623 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt
[2020-12-01 23:19:06,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-12-01 23:19:06,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-12-01 23:19:06,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-12-01 23:19:06,624 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77b3a373bd5532f9284ea33fd7b532cf320a99fa
[2020-12-01 23:19:07,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-12-01 23:19:07,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-12-01 23:19:07,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-12-01 23:19:07,085 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-12-01 23:19:07,086 INFO L275 PluginConnector]: CDTParser initialized
[2020-12-01 23:19:07,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c
[2020-12-01 23:19:07,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07d6d4997/55cd58b2832641cc9934125548fc9b52/FLAGa05142389
[2020-12-01 23:19:07,948 INFO L306 CDTParser]: Found 1 translation units.
[2020-12-01 23:19:07,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c
[2020-12-01 23:19:07,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07d6d4997/55cd58b2832641cc9934125548fc9b52/FLAGa05142389
[2020-12-01 23:19:08,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07d6d4997/55cd58b2832641cc9934125548fc9b52
[2020-12-01 23:19:08,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-12-01 23:19:08,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2020-12-01 23:19:08,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-12-01 23:19:08,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-12-01 23:19:08,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-12-01 23:19:08,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:08,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4568d892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08, skipping insertion in model container
[2020-12-01 23:19:08,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:08,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-12-01 23:19:08,374 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-12-01 23:19:08,644 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020]
[2020-12-01 23:19:08,648 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-01 23:19:08,673 INFO L203 MainTranslator]: Completed pre-run
[2020-12-01 23:19:08,791 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c[4007,4020]
[2020-12-01 23:19:08,795 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-12-01 23:19:08,845 INFO L208 MainTranslator]: Completed translation
[2020-12-01 23:19:08,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08 WrapperNode
[2020-12-01 23:19:08,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-12-01 23:19:08,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-12-01 23:19:08,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-12-01 23:19:08,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-12-01 23:19:08,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:08,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:08,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-12-01 23:19:08,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-12-01 23:19:08,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-12-01 23:19:08,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-12-01 23:19:08,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:08,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:08,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:08,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:09,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:09,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:09,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
[2020-12-01 23:19:09,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-12-01 23:19:09,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-12-01 23:19:09,052 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-12-01 23:19:09,053 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-12-01 23:19:09,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-01 23:19:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8
[2020-12-01 23:19:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8
[2020-12-01 23:19:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2020-12-01 23:19:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-12-01 23:19:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2020-12-01 23:19:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-12-01 23:19:09,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-12-01 23:19:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2020-12-01 23:19:09,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-12-01 23:19:35,811 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-12-01 23:19:35,812 INFO L298 CfgBuilder]: Removed 18 assume(true) statements.
[2020-12-01 23:19:35,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:35 BoogieIcfgContainer
[2020-12-01 23:19:35,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-12-01 23:19:35,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-12-01 23:19:35,816 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-12-01 23:19:35,820 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-12-01 23:19:35,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:19:08" (1/3) ...
[2020-12-01 23:19:35,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8b390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:35, skipping insertion in model container
[2020-12-01 23:19:35,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:08" (2/3) ...
[2020-12-01 23:19:35,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8b390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:35, skipping insertion in model container
[2020-12-01 23:19:35,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:35" (3/3) ...
[2020-12-01 23:19:35,828 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c
[2020-12-01 23:19:35,842 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-12-01 23:19:35,847 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-12-01 23:19:35,859 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-12-01 23:19:35,893 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-12-01 23:19:35,894 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-12-01 23:19:35,894 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-12-01 23:19:35,894 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-12-01 23:19:35,894 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-12-01 23:19:35,894 INFO L382 AbstractCegarLoop]: Difference is false
[2020-12-01 23:19:35,894 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-12-01 23:19:35,894 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-12-01 23:19:35,906 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states.
[2020-12-01 23:19:35,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-12-01 23:19:35,912 INFO L414 BasicCegarLoop]: Found error trace
[2020-12-01 23:19:35,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-01 23:19:35,913 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-01 23:19:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-01 23:19:35,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times
[2020-12-01 23:19:35,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF
[2020-12-01 23:19:35,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343939185]
[2020-12-01 23:19:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3
[2020-12-01 23:19:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-01 23:19:36,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core
[2020-12-01 23:19:36,195 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-12-01 23:19:36,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-01 23:19:36,234 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-12-01 23:19:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-01 23:19:36,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343939185]
[2020-12-01 23:19:36,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2020-12-01 23:19:36,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2020-12-01 23:19:36,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120983472]
[2020-12-01 23:19:36,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-12-01 23:19:36,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2020-12-01 23:19:36,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-12-01 23:19:36,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-12-01 23:19:36,287 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states.
[2020-12-01 23:19:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-01 23:19:36,310 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions.
[2020-12-01 23:19:36,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-12-01 23:19:36,311 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12
[2020-12-01 23:19:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-01 23:19:36,322 INFO L225 Difference]: With dead ends: 69
[2020-12-01 23:19:36,323 INFO L226 Difference]: Without dead ends: 32
[2020-12-01 23:19:36,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-12-01 23:19:36,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-12-01 23:19:36,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2020-12-01 23:19:36,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2020-12-01 23:19:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions.
[2020-12-01 23:19:36,367 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12
[2020-12-01 23:19:36,368 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-01 23:19:36,368 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions.
[2020-12-01 23:19:36,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-12-01 23:19:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions.
[2020-12-01 23:19:36,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-12-01 23:19:36,369 INFO L414 BasicCegarLoop]: Found error trace
[2020-12-01 23:19:36,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-01 23:19:36,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3
[2020-12-01 23:19:36,587 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-01 23:19:36,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-01 23:19:36,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times
[2020-12-01 23:19:36,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF
[2020-12-01 23:19:36,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273063003]
[2020-12-01 23:19:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3
[2020-12-01 23:19:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-01 23:19:36,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core
[2020-12-01 23:19:36,806 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-12-01 23:19:36,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-01 23:19:36,899 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-12-01 23:19:36,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-01 23:19:36,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273063003]
[2020-12-01 23:19:36,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2020-12-01 23:19:36,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2020-12-01 23:19:36,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32039137]
[2020-12-01 23:19:36,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-01 23:19:36,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2020-12-01 23:19:36,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-01 23:19:36,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-01 23:19:36,929 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states.
[2020-12-01 23:19:37,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-01 23:19:37,096 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions.
[2020-12-01 23:19:37,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-12-01 23:19:37,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13
[2020-12-01 23:19:37,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-01 23:19:37,098 INFO L225 Difference]: With dead ends: 57
[2020-12-01 23:19:37,099 INFO L226 Difference]: Without dead ends: 32
[2020-12-01 23:19:37,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-01 23:19:37,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-12-01 23:19:37,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2020-12-01 23:19:37,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2020-12-01 23:19:37,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions.
[2020-12-01 23:19:37,106 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13
[2020-12-01 23:19:37,107 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-01 23:19:37,107 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions.
[2020-12-01 23:19:37,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-12-01 23:19:37,107 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions.
[2020-12-01 23:19:37,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-12-01 23:19:37,108 INFO L414 BasicCegarLoop]: Found error trace
[2020-12-01 23:19:37,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-01 23:19:37,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3
[2020-12-01 23:19:37,323 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-01 23:19:37,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-01 23:19:37,325 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times
[2020-12-01 23:19:37,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF
[2020-12-01 23:19:37,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706563596]
[2020-12-01 23:19:37,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3
[2020-12-01 23:19:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-01 23:19:37,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core
[2020-12-01 23:19:37,554 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-12-01 23:19:38,089 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 16
[2020-12-01 23:19:38,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-01 23:19:38,687 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-12-01 23:19:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-01 23:19:39,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706563596]
[2020-12-01 23:19:39,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2020-12-01 23:19:39,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10
[2020-12-01 23:19:39,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149681480]
[2020-12-01 23:19:39,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-12-01 23:19:39,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2020-12-01 23:19:39,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-12-01 23:19:39,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90
[2020-12-01 23:19:39,996 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand 10 states.
[2020-12-01 23:19:40,715 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8
[2020-12-01 23:19:41,005 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 10
[2020-12-01 23:19:41,316 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 21
[2020-12-01 23:19:47,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-01 23:19:47,141 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions.
[2020-12-01 23:19:47,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-12-01 23:19:47,166 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17
[2020-12-01 23:19:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-01 23:19:47,167 INFO L225 Difference]: With dead ends: 37
[2020-12-01 23:19:47,167 INFO L226 Difference]: Without dead ends: 19
[2020-12-01 23:19:47,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2020-12-01 23:19:47,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2020-12-01 23:19:47,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2020-12-01 23:19:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states.
[2020-12-01 23:19:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions.
[2020-12-01 23:19:47,172 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17
[2020-12-01 23:19:47,172 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-12-01 23:19:47,173 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions.
[2020-12-01 23:19:47,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-12-01 23:19:47,173 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions.
[2020-12-01 23:19:47,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-12-01 23:19:47,174 INFO L414 BasicCegarLoop]: Found error trace
[2020-12-01 23:19:47,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-01 23:19:47,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3
[2020-12-01 23:19:47,375 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-01 23:19:47,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-12-01 23:19:47,377 INFO L82 PathProgramCache]: Analyzing trace with hash -677236169, now seen corresponding path program 1 times
[2020-12-01 23:19:47,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF
[2020-12-01 23:19:47,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131074974]
[2020-12-01 23:19:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3
[2020-12-01 23:19:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-12-01 23:19:48,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-12-01 23:19:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-12-01 23:19:49,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-12-01 23:19:49,816 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2020-12-01 23:19:49,816 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-12-01 23:19:50,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3
[2020-12-01 23:19:50,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:19:50 BoogieIcfgContainer
[2020-12-01 23:19:50,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-12-01 23:19:50,089 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2020-12-01 23:19:50,089 INFO L271 PluginConnector]: Initializing Witness Printer...
[2020-12-01 23:19:50,089 INFO L275 PluginConnector]: Witness Printer initialized
[2020-12-01 23:19:50,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:35" (3/4) ...
[2020-12-01 23:19:50,092 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2020-12-01 23:19:50,170 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2020-12-01 23:19:50,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2020-12-01 23:19:50,172 INFO L168 Benchmark]: Toolchain (without parser) took 41914.10 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.5 MB in the beginning and 18.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:50,172 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 39.8 MB. Free memory was 24.7 MB in the beginning and 24.7 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-12-01 23:19:50,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.23 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.3 MB in the beginning and 30.4 MB in the end (delta: -15.1 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:50,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.26 ms. Allocated memory is still 48.2 MB. Free memory was 30.4 MB in the beginning and 28.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:50,175 INFO L168 Benchmark]: Boogie Preprocessor took 88.88 ms. Allocated memory is still 48.2 MB. Free memory was 28.3 MB in the beginning and 26.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:50,175 INFO L168 Benchmark]: RCFGBuilder took 26762.23 ms. Allocated memory is still 48.2 MB. Free memory was 26.2 MB in the beginning and 23.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:50,176 INFO L168 Benchmark]: TraceAbstraction took 14272.16 ms. Allocated memory is still 48.2 MB. Free memory was 22.6 MB in the beginning and 22.1 MB in the end (delta: 520.4 kB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:50,177 INFO L168 Benchmark]: Witness Printer took 81.79 ms. Allocated memory is still 48.2 MB. Free memory was 22.1 MB in the beginning and 18.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2020-12-01 23:19:50,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18 ms. Allocated memory is still 39.8 MB. Free memory was 24.7 MB in the beginning and 24.7 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 586.23 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.3 MB in the beginning and 30.4 MB in the end (delta: -15.1 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 111.26 ms. Allocated memory is still 48.2 MB. Free memory was 30.4 MB in the beginning and 28.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 88.88 ms. Allocated memory is still 48.2 MB. Free memory was 28.3 MB in the beginning and 26.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 26762.23 ms. Allocated memory is still 48.2 MB. Free memory was 26.2 MB in the beginning and 23.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 14272.16 ms. Allocated memory is still 48.2 MB. Free memory was 22.6 MB in the beginning and 22.1 MB in the end (delta: 520.4 kB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB.
* Witness Printer took 81.79 ms. Allocated memory is still 48.2 MB. Free memory was 22.1 MB in the beginning and 18.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 156]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01,
ln2_lo_log = 1.90821492927058770002e-10,
two54_log = 1.80143985094819840000e+16,
Lg1_log = 6.666666666666735130e-01,
Lg2_log = 3.999999999940941908e-01,
Lg3_log = 2.857142874366239149e-01,
Lg4_log = 2.222219843214978396e-01,
Lg5_log = 1.818357216161805012e-01,
Lg6_log = 1.531383769920937332e-01,
Lg7_log = 1.479819860511658591e-01;
[L45] static const double zero = 0.0;
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L148] double x = __VERIFIER_nondet_double();
[L150] EXPR x < 0 && isfinite_double(x)
[L129] __int32_t hx;
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L131] ieee_double_shape_type gh_u;
[L132] gh_u.value = (x)
[L133] EXPR gh_u.parts.msw
[L133] (hx) = gh_u.parts.msw
[L135] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31);
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L150] EXPR x < 0 && isfinite_double(x)
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L150] COND TRUE (x < 0 && isfinite_double(x))
[L48] double hfsq, f, s, z, R, w, t1, t2, dk;
[L49] __int32_t k, hx, i, j;
[L50] __uint32_t lx;
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L53] ieee_double_shape_type ew_u;
[L54] ew_u.value = (x)
[L55] EXPR ew_u.parts.msw
[L55] (hx) = ew_u.parts.msw
[L56] EXPR ew_u.parts.lsw
[L56] (lx) = ew_u.parts.lsw
[L59] k = 0
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L60] COND TRUE hx < 0x00100000
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0
[L62] return -two54_log / zero;
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L152] double res = __ieee754_log(x);
[L139] return x != x;
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
[L155] COND TRUE !isnan_double(res)
[L156] reach_error()
VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 103 SDtfs, 40 SDslu, 65 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 17 QuantifiedInterpolants, 4426 SizeOfPredicates, 8 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 proved your program to be incorrect!
[MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process
Received shutdown request...