./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 678e0110
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/float_req_bl_1232a.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(__VERIFIER_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd0c8f7b91fa815011541d5ffb41102d34132ba8
..........................................................................................................................................................................................................................................................................................................................................................
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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/float_req_bl_1232a.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(__VERIFIER_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd0c8f7b91fa815011541d5ffb41102d34132ba8
.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.1.24-678e011
[2019-11-19 21:13:46,569 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-11-19 21:13:46,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-19 21:13:46,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-19 21:13:46,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-19 21:13:46,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-19 21:13:46,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-11-19 21:13:46,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-11-19 21:13:46,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-11-19 21:13:46,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-11-19 21:13:46,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-11-19 21:13:46,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-11-19 21:13:46,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-11-19 21:13:46,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-11-19 21:13:46,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-11-19 21:13:46,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-19 21:13:46,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-19 21:13:46,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-19 21:13:46,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-19 21:13:46,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-11-19 21:13:46,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-11-19 21:13:46,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-11-19 21:13:46,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-11-19 21:13:46,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-11-19 21:13:46,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-11-19 21:13:46,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-11-19 21:13:46,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-11-19 21:13:46,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-11-19 21:13:46,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-11-19 21:13:46,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-11-19 21:13:46,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-11-19 21:13:46,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-11-19 21:13:46,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-11-19 21:13:46,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-11-19 21:13:46,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-11-19 21:13:46,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-11-19 21:13:46,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-11-19 21:13:46,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-11-19 21:13:46,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-11-19 21:13:46,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-11-19 21:13:46,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-11-19 21:13:46,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2019-11-19 21:13:46,642 INFO L113 SettingsManager]: Loading preferences was successful
[2019-11-19 21:13:46,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-19 21:13:46,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-19 21:13:46,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-11-19 21:13:46,644 INFO L138 SettingsManager]: * Use SBE=true
[2019-11-19 21:13:46,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-19 21:13:46,645 INFO L138 SettingsManager]: * sizeof long=4
[2019-11-19 21:13:46,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-11-19 21:13:46,645 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-11-19 21:13:46,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-11-19 21:13:46,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-11-19 21:13:46,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-19 21:13:46,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-11-19 21:13:46,647 INFO L138 SettingsManager]: * sizeof long double=12
[2019-11-19 21:13:46,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-11-19 21:13:46,647 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-11-19 21:13:46,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-11-19 21:13:46,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-19 21:13:46,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-11-19 21:13:46,649 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-11-19 21:13:46,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-11-19 21:13:46,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-19 21:13:46,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-19 21:13:46,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-11-19 21:13:46,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-19 21:13:46,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-11-19 21:13:46,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-19 21:13:46,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-19 21:13:46,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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(__VERIFIER_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 -> cd0c8f7b91fa815011541d5ffb41102d34132ba8
[2019-11-19 21:13:46,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-19 21:13:46,970 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-19 21:13:46,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-19 21:13:46,976 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-11-19 21:13:46,976 INFO L275 PluginConnector]: CDTParser initialized
[2019-11-19 21:13:46,977 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c
[2019-11-19 21:13:47,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89c2ad029/412e8c3511f94d16b8ea1a86946094b4/FLAGbc056e8c3
[2019-11-19 21:13:47,560 INFO L306 CDTParser]: Found 1 translation units.
[2019-11-19 21:13:47,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c
[2019-11-19 21:13:47,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89c2ad029/412e8c3511f94d16b8ea1a86946094b4/FLAGbc056e8c3
[2019-11-19 21:13:47,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89c2ad029/412e8c3511f94d16b8ea1a86946094b4
[2019-11-19 21:13:47,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-19 21:13:47,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2019-11-19 21:13:47,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-19 21:13:47,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-19 21:13:47,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-19 21:13:47,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:13:47" (1/1) ...
[2019-11-19 21:13:47,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd92d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:47, skipping insertion in model container
[2019-11-19 21:13:47,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:13:47" (1/1) ...
[2019-11-19 21:13:47,946 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-11-19 21:13:47,965 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-11-19 21:13:48,169 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-19 21:13:48,172 INFO L188 MainTranslator]: Completed pre-run
[2019-11-19 21:13:48,197 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-19 21:13:48,287 INFO L192 MainTranslator]: Completed translation
[2019-11-19 21:13:48,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48 WrapperNode
[2019-11-19 21:13:48,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-19 21:13:48,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2019-11-19 21:13:48,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2019-11-19 21:13:48,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2019-11-19 21:13:48,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2019-11-19 21:13:48,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-19 21:13:48,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-19 21:13:48,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-11-19 21:13:48,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (1/1) ...
[2019-11-19 21:13:48,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-19 21:13:48,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-19 21:13:48,376 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-11-19 21:13:48,376 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-11-19 21:13:48,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (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
[2019-11-19 21:13:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-11-19 21:13:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2019-11-19 21:13:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-19 21:13:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-19 21:13:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-11-19 21:13:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-11-19 21:13:48,839 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-19 21:13:48,839 INFO L285 CfgBuilder]: Removed 18 assume(true) statements.
[2019-11-19 21:13:48,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:13:48 BoogieIcfgContainer
[2019-11-19 21:13:48,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-19 21:13:48,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-19 21:13:48,842 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-11-19 21:13:48,845 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-11-19 21:13:48,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:13:47" (1/3) ...
[2019-11-19 21:13:48,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5ea262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:13:48, skipping insertion in model container
[2019-11-19 21:13:48,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:48" (2/3) ...
[2019-11-19 21:13:48,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5ea262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:13:48, skipping insertion in model container
[2019-11-19 21:13:48,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:13:48" (3/3) ...
[2019-11-19 21:13:48,850 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a.c
[2019-11-19 21:13:48,860 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-19 21:13:48,868 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-11-19 21:13:48,880 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-11-19 21:13:48,902 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-11-19 21:13:48,903 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-11-19 21:13:48,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-19 21:13:48,903 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-19 21:13:48,903 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-19 21:13:48,903 INFO L378 AbstractCegarLoop]: Difference is false
[2019-11-19 21:13:48,903 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-19 21:13:48,904 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-19 21:13:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2019-11-19 21:13:48,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2019-11-19 21:13:48,925 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:48,926 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:48,926 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:48,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:48,932 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times
[2019-11-19 21:13:48,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-19 21:13:48,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219612505]
[2019-11-19 21:13:48,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-19 21:13:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:49,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219612505]
[2019-11-19 21:13:49,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:49,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-11-19 21:13:49,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892266891]
[2019-11-19 21:13:49,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-11-19 21:13:49,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-19 21:13:49,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-11-19 21:13:49,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-11-19 21:13:49,078 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states.
[2019-11-19 21:13:49,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:49,100 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions.
[2019-11-19 21:13:49,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-11-19 21:13:49,101 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2019-11-19 21:13:49,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:49,114 INFO L225 Difference]: With dead ends: 62
[2019-11-19 21:13:49,116 INFO L226 Difference]: Without dead ends: 29
[2019-11-19 21:13:49,120 INFO L630 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
[2019-11-19 21:13:49,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2019-11-19 21:13:49,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2019-11-19 21:13:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states.
[2019-11-19 21:13:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions.
[2019-11-19 21:13:49,169 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10
[2019-11-19 21:13:49,169 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:49,169 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions.
[2019-11-19 21:13:49,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-11-19 21:13:49,169 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions.
[2019-11-19 21:13:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-11-19 21:13:49,170 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:49,170 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:49,171 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:49,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:49,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times
[2019-11-19 21:13:49,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-19 21:13:49,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004195609]
[2019-11-19 21:13:49,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-19 21:13:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:49,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004195609]
[2019-11-19 21:13:49,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:49,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-19 21:13:49,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004944327]
[2019-11-19 21:13:49,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-19 21:13:49,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-19 21:13:49,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-19 21:13:49,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-19 21:13:49,280 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states.
[2019-11-19 21:13:49,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:49,411 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions.
[2019-11-19 21:13:49,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2019-11-19 21:13:49,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2019-11-19 21:13:49,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:49,414 INFO L225 Difference]: With dead ends: 53
[2019-11-19 21:13:49,414 INFO L226 Difference]: Without dead ends: 44
[2019-11-19 21:13:49,415 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-19 21:13:49,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2019-11-19 21:13:49,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31.
[2019-11-19 21:13:49,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2019-11-19 21:13:49,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions.
[2019-11-19 21:13:49,433 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11
[2019-11-19 21:13:49,433 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:49,433 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions.
[2019-11-19 21:13:49,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-19 21:13:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions.
[2019-11-19 21:13:49,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2019-11-19 21:13:49,436 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:49,436 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:49,436 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:49,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:49,437 INFO L82 PathProgramCache]: Analyzing trace with hash -555760345, now seen corresponding path program 1 times
[2019-11-19 21:13:49,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-19 21:13:49,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826687689]
[2019-11-19 21:13:49,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-19 21:13:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:49,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:49,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826687689]
[2019-11-19 21:13:49,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:49,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-19 21:13:49,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227594542]
[2019-11-19 21:13:49,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-19 21:13:49,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-19 21:13:49,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-19 21:13:49,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-19 21:13:49,545 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states.
[2019-11-19 21:13:49,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:49,630 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions.
[2019-11-19 21:13:49,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2019-11-19 21:13:49,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14
[2019-11-19 21:13:49,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:49,634 INFO L225 Difference]: With dead ends: 55
[2019-11-19 21:13:49,634 INFO L226 Difference]: Without dead ends: 46
[2019-11-19 21:13:49,637 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-19 21:13:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2019-11-19 21:13:49,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31.
[2019-11-19 21:13:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2019-11-19 21:13:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions.
[2019-11-19 21:13:49,650 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 14
[2019-11-19 21:13:49,651 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:49,652 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions.
[2019-11-19 21:13:49,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-19 21:13:49,653 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions.
[2019-11-19 21:13:49,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2019-11-19 21:13:49,655 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:49,655 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:49,656 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:49,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:49,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times
[2019-11-19 21:13:49,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-19 21:13:49,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141611199]
[2019-11-19 21:13:49,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-19 21:13:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-11-19 21:13:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-11-19 21:13:49,746 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2019-11-19 21:13:49,747 INFO L475 BasicCegarLoop]: Counterexample might be feasible
[2019-11-19 21:13:49,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:13:49 BoogieIcfgContainer
[2019-11-19 21:13:49,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-11-19 21:13:49,795 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2019-11-19 21:13:49,796 INFO L271 PluginConnector]: Initializing Witness Printer...
[2019-11-19 21:13:49,796 INFO L275 PluginConnector]: Witness Printer initialized
[2019-11-19 21:13:49,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:13:48" (3/4) ...
[2019-11-19 21:13:49,800 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2019-11-19 21:13:49,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2019-11-19 21:13:49,806 INFO L168 Benchmark]: Toolchain (without parser) took 1874.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -99.3 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:49,806 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 21:13:49,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:49,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:49,809 INFO L168 Benchmark]: Boogie Preprocessor took 35.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 21:13:49,810 INFO L168 Benchmark]: RCFGBuilder took 464.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:49,810 INFO L168 Benchmark]: TraceAbstraction took 953.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:49,811 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 21:13:49,815 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
* CACSL2BoogieTranslator took 359.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -171.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB.
* Boogie Procedure Inliner took 48.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB.
* Boogie Preprocessor took 35.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
* RCFGBuilder took 464.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB.
* TraceAbstraction took 953.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB.
* Witness Printer took 5.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someUnaryFLOAToperation at line 65.
Possible FailurePath:
[L64] float x = 0.0f;
[L65] float y = -0.0f;
[L13] __uint32_t w;
[L16] ieee_float_shape_type gf_u;
[L17] gf_u.value = (x)
[L18] EXPR gf_u.word
[L18] (w) = gf_u.word
[L21] COND FALSE !(w == 0x00000000 || w == 0x80000000)
[L23-L24] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) ||
(w >= 0x80800000 && w <= 0xff7fffff))
[L26-L27] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) ||
(w >= 0x80000001 && w <= 0x807fffff))
[L29] COND FALSE !(w == 0x7f800000 || w == 0xff800000)
[L32] return 0;
[L36] COND TRUE __fpclassify_float(x) == 0
[L37] return y;
[L66] float res = fmin_float(x, y);
[L69] EXPR res == -0.0f && __signbit_float(res) == 1
[L69] COND TRUE !(res == -0.0f && __signbit_float(res) == 1)
[L70] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 32 SDslu, 140 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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 0.1.24-678e011
[2019-11-19 21:13:51,803 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-11-19 21:13:51,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-19 21:13:51,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-19 21:13:51,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-19 21:13:51,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-19 21:13:51,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-11-19 21:13:51,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-11-19 21:13:51,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-11-19 21:13:51,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-11-19 21:13:51,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-11-19 21:13:51,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-11-19 21:13:51,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-11-19 21:13:51,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-11-19 21:13:51,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-11-19 21:13:51,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-19 21:13:51,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-19 21:13:51,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-19 21:13:51,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-19 21:13:51,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-11-19 21:13:51,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-11-19 21:13:51,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-11-19 21:13:51,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-11-19 21:13:51,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-11-19 21:13:51,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-11-19 21:13:51,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-11-19 21:13:51,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-11-19 21:13:51,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-11-19 21:13:51,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-11-19 21:13:51,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-11-19 21:13:51,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-11-19 21:13:51,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-11-19 21:13:51,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-11-19 21:13:51,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-11-19 21:13:51,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-11-19 21:13:51,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-11-19 21:13:51,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-11-19 21:13:51,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-11-19 21:13:51,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-11-19 21:13:51,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-11-19 21:13:51,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-11-19 21:13:51,869 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2019-11-19 21:13:51,884 INFO L113 SettingsManager]: Loading preferences was successful
[2019-11-19 21:13:51,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-19 21:13:51,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-19 21:13:51,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-11-19 21:13:51,886 INFO L138 SettingsManager]: * Use SBE=true
[2019-11-19 21:13:51,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-19 21:13:51,887 INFO L138 SettingsManager]: * sizeof long=4
[2019-11-19 21:13:51,887 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-11-19 21:13:51,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-11-19 21:13:51,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-11-19 21:13:51,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-19 21:13:51,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-11-19 21:13:51,888 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2019-11-19 21:13:51,889 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2019-11-19 21:13:51,889 INFO L138 SettingsManager]: * sizeof long double=12
[2019-11-19 21:13:51,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-11-19 21:13:51,889 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-11-19 21:13:51,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-11-19 21:13:51,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-19 21:13:51,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-11-19 21:13:51,890 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-11-19 21:13:51,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-11-19 21:13:51,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-19 21:13:51,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-19 21:13:51,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-11-19 21:13:51,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-19 21:13:51,892 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2019-11-19 21:13:51,892 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt
[2019-11-19 21:13:51,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-19 21:13:51,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2019-11-19 21:13:51,893 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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(__VERIFIER_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 -> cd0c8f7b91fa815011541d5ffb41102d34132ba8
[2019-11-19 21:13:52,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-19 21:13:52,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-19 21:13:52,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-19 21:13:52,278 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-11-19 21:13:52,279 INFO L275 PluginConnector]: CDTParser initialized
[2019-11-19 21:13:52,280 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c
[2019-11-19 21:13:52,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0887316/9d6b7d3301d4406e966602b49c9d9212/FLAG2dd72eeae
[2019-11-19 21:13:52,836 INFO L306 CDTParser]: Found 1 translation units.
[2019-11-19 21:13:52,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c
[2019-11-19 21:13:52,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0887316/9d6b7d3301d4406e966602b49c9d9212/FLAG2dd72eeae
[2019-11-19 21:13:53,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0887316/9d6b7d3301d4406e966602b49c9d9212
[2019-11-19 21:13:53,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-19 21:13:53,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2019-11-19 21:13:53,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-19 21:13:53,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-19 21:13:53,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-19 21:13:53,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bf8f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53, skipping insertion in model container
[2019-11-19 21:13:53,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,234 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-11-19 21:13:53,255 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-11-19 21:13:53,457 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-19 21:13:53,463 INFO L188 MainTranslator]: Completed pre-run
[2019-11-19 21:13:53,496 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-19 21:13:53,603 INFO L192 MainTranslator]: Completed translation
[2019-11-19 21:13:53,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53 WrapperNode
[2019-11-19 21:13:53,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-19 21:13:53,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2019-11-19 21:13:53,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2019-11-19 21:13:53,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2019-11-19 21:13:53,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2019-11-19 21:13:53,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-19 21:13:53,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-19 21:13:53,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-11-19 21:13:53,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (1/1) ...
[2019-11-19 21:13:53,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-19 21:13:53,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-19 21:13:53,699 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-11-19 21:13:53,700 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-11-19 21:13:53,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (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
[2019-11-19 21:13:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-11-19 21:13:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2019-11-19 21:13:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-19 21:13:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-19 21:13:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4
[2019-11-19 21:13:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-11-19 21:13:54,207 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-19 21:13:54,207 INFO L285 CfgBuilder]: Removed 18 assume(true) statements.
[2019-11-19 21:13:54,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:13:54 BoogieIcfgContainer
[2019-11-19 21:13:54,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-19 21:13:54,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-19 21:13:54,210 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-11-19 21:13:54,213 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-11-19 21:13:54,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:13:53" (1/3) ...
[2019-11-19 21:13:54,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308240bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:13:54, skipping insertion in model container
[2019-11-19 21:13:54,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:13:53" (2/3) ...
[2019-11-19 21:13:54,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308240bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:13:54, skipping insertion in model container
[2019-11-19 21:13:54,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:13:54" (3/3) ...
[2019-11-19 21:13:54,217 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a.c
[2019-11-19 21:13:54,227 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-19 21:13:54,235 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-11-19 21:13:54,245 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-11-19 21:13:54,265 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-11-19 21:13:54,266 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-11-19 21:13:54,266 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-19 21:13:54,266 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-19 21:13:54,266 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-19 21:13:54,267 INFO L378 AbstractCegarLoop]: Difference is false
[2019-11-19 21:13:54,267 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-19 21:13:54,267 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-19 21:13:54,282 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2019-11-19 21:13:54,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2019-11-19 21:13:54,289 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:54,291 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:54,291 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:54,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:54,297 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times
[2019-11-19 21:13:54,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 21:13:54,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982617823]
[2019-11-19 21:13:54,310 INFO L94 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
[2019-11-19 21:13:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:54,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core
[2019-11-19 21:13:54,400 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 21:13:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:54,419 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 21:13:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:54,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982617823]
[2019-11-19 21:13:54,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:54,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2019-11-19 21:13:54,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191579615]
[2019-11-19 21:13:54,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-11-19 21:13:54,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 21:13:54,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-11-19 21:13:54,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-11-19 21:13:54,446 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states.
[2019-11-19 21:13:54,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:54,463 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions.
[2019-11-19 21:13:54,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-11-19 21:13:54,465 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2019-11-19 21:13:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:54,476 INFO L225 Difference]: With dead ends: 62
[2019-11-19 21:13:54,476 INFO L226 Difference]: Without dead ends: 29
[2019-11-19 21:13:54,480 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-11-19 21:13:54,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2019-11-19 21:13:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2019-11-19 21:13:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states.
[2019-11-19 21:13:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions.
[2019-11-19 21:13:54,518 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10
[2019-11-19 21:13:54,519 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:54,519 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions.
[2019-11-19 21:13:54,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-11-19 21:13:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions.
[2019-11-19 21:13:54,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-11-19 21:13:54,520 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:54,520 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:54,727 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3
[2019-11-19 21:13:54,728 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:54,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:54,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times
[2019-11-19 21:13:54,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 21:13:54,730 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930296140]
[2019-11-19 21:13:54,731 INFO L94 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
[2019-11-19 21:13:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:54,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-11-19 21:13:54,800 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 21:13:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:54,826 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 21:13:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:54,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930296140]
[2019-11-19 21:13:54,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:54,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2019-11-19 21:13:54,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056164413]
[2019-11-19 21:13:54,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-11-19 21:13:54,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 21:13:54,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-11-19 21:13:54,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-11-19 21:13:54,858 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states.
[2019-11-19 21:13:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:54,991 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions.
[2019-11-19 21:13:54,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2019-11-19 21:13:54,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11
[2019-11-19 21:13:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:54,995 INFO L225 Difference]: With dead ends: 68
[2019-11-19 21:13:54,995 INFO L226 Difference]: Without dead ends: 59
[2019-11-19 21:13:54,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2019-11-19 21:13:54,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2019-11-19 21:13:55,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31.
[2019-11-19 21:13:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2019-11-19 21:13:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions.
[2019-11-19 21:13:55,013 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11
[2019-11-19 21:13:55,013 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:55,014 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions.
[2019-11-19 21:13:55,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-11-19 21:13:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions.
[2019-11-19 21:13:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2019-11-19 21:13:55,017 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:55,018 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:55,218 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3
[2019-11-19 21:13:55,219 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:55,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times
[2019-11-19 21:13:55,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 21:13:55,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312636342]
[2019-11-19 21:13:55,221 INFO L94 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
[2019-11-19 21:13:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:55,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core
[2019-11-19 21:13:55,274 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 21:13:55,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:55,301 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 21:13:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:55,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312636342]
[2019-11-19 21:13:55,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:55,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2019-11-19 21:13:55,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777210506]
[2019-11-19 21:13:55,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-19 21:13:55,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 21:13:55,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-19 21:13:55,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-19 21:13:55,338 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states.
[2019-11-19 21:13:55,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:55,419 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions.
[2019-11-19 21:13:55,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2019-11-19 21:13:55,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14
[2019-11-19 21:13:55,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:55,422 INFO L225 Difference]: With dead ends: 52
[2019-11-19 21:13:55,422 INFO L226 Difference]: Without dead ends: 26
[2019-11-19 21:13:55,423 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-19 21:13:55,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2019-11-19 21:13:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2019-11-19 21:13:55,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states.
[2019-11-19 21:13:55,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2019-11-19 21:13:55,428 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 14
[2019-11-19 21:13:55,428 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:55,428 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2019-11-19 21:13:55,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-19 21:13:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2019-11-19 21:13:55,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2019-11-19 21:13:55,430 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:55,430 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:55,632 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3
[2019-11-19 21:13:55,633 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:55,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:55,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times
[2019-11-19 21:13:55,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 21:13:55,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354578761]
[2019-11-19 21:13:55,636 INFO L94 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
[2019-11-19 21:13:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:55,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-11-19 21:13:55,711 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 21:13:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:55,725 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 21:13:55,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:55,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354578761]
[2019-11-19 21:13:55,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:55,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2019-11-19 21:13:55,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522878855]
[2019-11-19 21:13:55,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-11-19 21:13:55,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 21:13:55,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-11-19 21:13:55,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-11-19 21:13:55,757 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 6 states.
[2019-11-19 21:13:55,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:55,875 INFO L93 Difference]: Finished difference Result 61 states and 71 transitions.
[2019-11-19 21:13:55,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2019-11-19 21:13:55,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16
[2019-11-19 21:13:55,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:55,880 INFO L225 Difference]: With dead ends: 61
[2019-11-19 21:13:55,880 INFO L226 Difference]: Without dead ends: 52
[2019-11-19 21:13:55,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2019-11-19 21:13:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2019-11-19 21:13:55,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 28.
[2019-11-19 21:13:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2019-11-19 21:13:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions.
[2019-11-19 21:13:55,887 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 16
[2019-11-19 21:13:55,887 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:55,887 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions.
[2019-11-19 21:13:55,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-11-19 21:13:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions.
[2019-11-19 21:13:55,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2019-11-19 21:13:55,888 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:55,889 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:56,094 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3
[2019-11-19 21:13:56,095 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:56,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:56,096 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times
[2019-11-19 21:13:56,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 21:13:56,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604299786]
[2019-11-19 21:13:56,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3
[2019-11-19 21:13:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:56,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core
[2019-11-19 21:13:56,180 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 21:13:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:56,207 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 21:13:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:56,231 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604299786]
[2019-11-19 21:13:56,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:56,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2019-11-19 21:13:56,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22680281]
[2019-11-19 21:13:56,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-19 21:13:56,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 21:13:56,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-19 21:13:56,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-11-19 21:13:56,234 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 4 states.
[2019-11-19 21:13:56,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:56,248 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions.
[2019-11-19 21:13:56,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-11-19 21:13:56,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18
[2019-11-19 21:13:56,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:56,250 INFO L225 Difference]: With dead ends: 38
[2019-11-19 21:13:56,250 INFO L226 Difference]: Without dead ends: 28
[2019-11-19 21:13:56,250 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-11-19 21:13:56,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2019-11-19 21:13:56,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2019-11-19 21:13:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2019-11-19 21:13:56,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions.
[2019-11-19 21:13:56,256 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 18
[2019-11-19 21:13:56,256 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:56,256 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions.
[2019-11-19 21:13:56,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-19 21:13:56,257 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions.
[2019-11-19 21:13:56,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2019-11-19 21:13:56,258 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:56,258 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:56,475 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3
[2019-11-19 21:13:56,476 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:56,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:56,476 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times
[2019-11-19 21:13:56,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 21:13:56,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772983189]
[2019-11-19 21:13:56,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3
[2019-11-19 21:13:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:56,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core
[2019-11-19 21:13:56,576 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 21:13:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:56,627 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 21:13:56,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-11-19 21:13:56,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:56,682 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772983189]
[2019-11-19 21:13:56,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:56,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9
[2019-11-19 21:13:56,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994036824]
[2019-11-19 21:13:56,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-11-19 21:13:56,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 21:13:56,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-11-19 21:13:56,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2019-11-19 21:13:56,685 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 9 states.
[2019-11-19 21:13:56,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:56,801 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions.
[2019-11-19 21:13:56,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2019-11-19 21:13:56,802 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18
[2019-11-19 21:13:56,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:56,803 INFO L225 Difference]: With dead ends: 40
[2019-11-19 21:13:56,803 INFO L226 Difference]: Without dead ends: 37
[2019-11-19 21:13:56,803 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156
[2019-11-19 21:13:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2019-11-19 21:13:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30.
[2019-11-19 21:13:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2019-11-19 21:13:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions.
[2019-11-19 21:13:56,809 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 18
[2019-11-19 21:13:56,809 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:56,809 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions.
[2019-11-19 21:13:56,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2019-11-19 21:13:56,809 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions.
[2019-11-19 21:13:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2019-11-19 21:13:56,810 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:56,810 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:57,031 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3
[2019-11-19 21:13:57,031 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:57,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:57,032 INFO L82 PathProgramCache]: Analyzing trace with hash -208358251, now seen corresponding path program 1 times
[2019-11-19 21:13:57,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 21:13:57,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479342972]
[2019-11-19 21:13:57,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3
[2019-11-19 21:13:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:57,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core
[2019-11-19 21:13:57,105 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 21:13:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:57,137 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 21:13:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:57,164 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479342972]
[2019-11-19 21:13:57,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:57,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5
[2019-11-19 21:13:57,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887902130]
[2019-11-19 21:13:57,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-19 21:13:57,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 21:13:57,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-19 21:13:57,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-19 21:13:57,166 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 5 states.
[2019-11-19 21:13:57,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:57,225 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions.
[2019-11-19 21:13:57,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2019-11-19 21:13:57,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19
[2019-11-19 21:13:57,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:57,231 INFO L225 Difference]: With dead ends: 43
[2019-11-19 21:13:57,231 INFO L226 Difference]: Without dead ends: 23
[2019-11-19 21:13:57,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2019-11-19 21:13:57,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2019-11-19 21:13:57,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2019-11-19 21:13:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2019-11-19 21:13:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions.
[2019-11-19 21:13:57,236 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19
[2019-11-19 21:13:57,237 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:57,237 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions.
[2019-11-19 21:13:57,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-19 21:13:57,237 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions.
[2019-11-19 21:13:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2019-11-19 21:13:57,238 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-19 21:13:57,238 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-19 21:13:57,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3
[2019-11-19 21:13:57,447 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-19 21:13:57,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-19 21:13:57,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times
[2019-11-19 21:13:57,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF
[2019-11-19 21:13:57,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967864830]
[2019-11-19 21:13:57,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3
[2019-11-19 21:13:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-19 21:13:57,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 15 conjunts are in the unsatisfiable core
[2019-11-19 21:13:57,559 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2019-11-19 21:13:57,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-11-19 21:13:57,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:57,672 INFO L320 TraceCheckSpWp]: Computing backward predicates...
[2019-11-19 21:13:57,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-11-19 21:13:57,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-19 21:13:57,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967864830]
[2019-11-19 21:13:57,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2019-11-19 21:13:57,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16
[2019-11-19 21:13:57,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140679532]
[2019-11-19 21:13:57,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states
[2019-11-19 21:13:57,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2019-11-19 21:13:57,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2019-11-19 21:13:57,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240
[2019-11-19 21:13:57,979 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 16 states.
[2019-11-19 21:13:58,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-19 21:13:58,211 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions.
[2019-11-19 21:13:58,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2019-11-19 21:13:58,212 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22
[2019-11-19 21:13:58,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-19 21:13:58,213 INFO L225 Difference]: With dead ends: 23
[2019-11-19 21:13:58,213 INFO L226 Difference]: Without dead ends: 0
[2019-11-19 21:13:58,214 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462
[2019-11-19 21:13:58,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-11-19 21:13:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-11-19 21:13:58,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-11-19 21:13:58,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-11-19 21:13:58,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22
[2019-11-19 21:13:58,215 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-19 21:13:58,215 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-11-19 21:13:58,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states.
[2019-11-19 21:13:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-11-19 21:13:58,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-11-19 21:13:58,419 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3
[2019-11-19 21:13:58,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-11-19 21:13:58,773 INFO L444 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed.
[2019-11-19 21:13:58,773 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed.
[2019-11-19 21:13:58,773 INFO L444 ceAbstractionStarter]: For program point L69-2(lines 69 72) no Hoare annotation was computed.
[2019-11-19 21:13:58,773 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2019-11-19 21:13:58,773 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-11-19 21:13:58,774 INFO L440 ceAbstractionStarter]: At program point L53(lines 44 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_fmin_float_~x (_ +zero 8 24)) (= .cse0 ULTIMATE.start___fpclassify_float_~x) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_main_~res~0 .cse0) |ULTIMATE.start_main_#t~short9| (= |ULTIMATE.start_fmin_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_fmin_float_~y .cse0)))
[2019-11-19 21:13:58,774 INFO L444 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed.
[2019-11-19 21:13:58,774 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 32) no Hoare annotation was computed.
[2019-11-19 21:13:58,774 INFO L444 ceAbstractionStarter]: For program point L29-1(lines 29 32) no Hoare annotation was computed.
[2019-11-19 21:13:58,774 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed.
[2019-11-19 21:13:58,775 INFO L444 ceAbstractionStarter]: For program point L47-1(lines 47 51) no Hoare annotation was computed.
[2019-11-19 21:13:58,775 INFO L440 ceAbstractionStarter]: At program point L47-2(lines 47 51) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_fmin_float_~x (_ +zero 8 24)) (= .cse0 ULTIMATE.start___fpclassify_float_~x) (= ULTIMATE.start_main_~res~0 .cse0) |ULTIMATE.start_main_#t~short9| (= |ULTIMATE.start_fmin_float_#res| .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= ULTIMATE.start_fmin_float_~y .cse0)))
[2019-11-19 21:13:58,775 INFO L444 ceAbstractionStarter]: For program point L47-3(lines 47 51) no Hoare annotation was computed.
[2019-11-19 21:13:58,775 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 32) no Hoare annotation was computed.
[2019-11-19 21:13:58,775 INFO L444 ceAbstractionStarter]: For program point L23-1(lines 23 32) no Hoare annotation was computed.
[2019-11-19 21:13:58,775 INFO L444 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed.
[2019-11-19 21:13:58,776 INFO L440 ceAbstractionStarter]: At program point L15-2(lines 15 19) the Hoare annotation is: (and (= ULTIMATE.start_fmin_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___fpclassify_float_~x) (= ULTIMATE.start_fmin_float_~y (fp.neg (_ +zero 8 24))))
[2019-11-19 21:13:58,776 INFO L444 ceAbstractionStarter]: For program point L15-3(lines 12 33) no Hoare annotation was computed.
[2019-11-19 21:13:58,776 INFO L444 ceAbstractionStarter]: For program point L15-5(lines 15 19) no Hoare annotation was computed.
[2019-11-19 21:13:58,776 INFO L440 ceAbstractionStarter]: At program point L15-6(lines 15 19) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~x (_ +zero 8 24)) (= .cse0 ULTIMATE.start___fpclassify_float_~x) (= ULTIMATE.start_fmin_float_~y .cse0)))
[2019-11-19 21:13:58,776 INFO L444 ceAbstractionStarter]: For program point L15-7(lines 12 33) no Hoare annotation was computed.
[2019-11-19 21:13:58,777 INFO L440 ceAbstractionStarter]: At program point L32(lines 12 33) the Hoare annotation is: (and (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_fmin_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___fpclassify_float_~x) (= (_ bv2 32) |ULTIMATE.start___fpclassify_float_#res|) (= ULTIMATE.start_fmin_float_~y (fp.neg (_ +zero 8 24))))
[2019-11-19 21:13:58,777 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed.
[2019-11-19 21:13:58,777 INFO L440 ceAbstractionStarter]: At program point L32-1(lines 12 33) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_fmin_float_~x (_ +zero 8 24)) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|)) (= .cse0 ULTIMATE.start___fpclassify_float_~x) (= ULTIMATE.start_fmin_float_~y .cse0)))
[2019-11-19 21:13:58,777 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed.
[2019-11-19 21:13:58,777 INFO L447 ceAbstractionStarter]: At program point L74(lines 56 75) the Hoare annotation is: true
[2019-11-19 21:13:58,777 INFO L444 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed.
[2019-11-19 21:13:58,778 INFO L444 ceAbstractionStarter]: For program point L41-2(line 41) no Hoare annotation was computed.
[2019-11-19 21:13:58,778 INFO L440 ceAbstractionStarter]: At program point L41-3(lines 35 42) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_fmin_float_~x (_ +zero 8 24)) (= .cse0 ULTIMATE.start___fpclassify_float_~x) (= |ULTIMATE.start_fmin_float_#res| .cse0) (= ULTIMATE.start_fmin_float_~y .cse0)))
[2019-11-19 21:13:58,778 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-11-19 21:13:58,778 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed.
[2019-11-19 21:13:58,778 INFO L444 ceAbstractionStarter]: For program point L26-1(lines 26 32) no Hoare annotation was computed.
[2019-11-19 21:13:58,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:13:58 BoogieIcfgContainer
[2019-11-19 21:13:58,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-11-19 21:13:58,803 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2019-11-19 21:13:58,803 INFO L271 PluginConnector]: Initializing Witness Printer...
[2019-11-19 21:13:58,804 INFO L275 PluginConnector]: Witness Printer initialized
[2019-11-19 21:13:58,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:13:54" (3/4) ...
[2019-11-19 21:13:58,808 INFO L137 WitnessPrinter]: Generating witness for correct program
[2019-11-19 21:13:58,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2019-11-19 21:13:58,824 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges
[2019-11-19 21:13:58,824 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2019-11-19 21:13:58,864 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && 2bv32 == \result) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
[2019-11-19 21:13:58,865 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
[2019-11-19 21:13:58,866 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
[2019-11-19 21:13:58,867 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && !(0bv32 == \result)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
[2019-11-19 21:13:58,868 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
[2019-11-19 21:13:58,908 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2019-11-19 21:13:58,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2019-11-19 21:13:58,912 INFO L168 Benchmark]: Toolchain (without parser) took 5695.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.7 MB in the beginning and 826.3 MB in the end (delta: 135.4 MB). Peak memory consumption was 265.4 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:58,913 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 21:13:58,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:58,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:58,916 INFO L168 Benchmark]: Boogie Preprocessor took 33.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 21:13:58,916 INFO L168 Benchmark]: RCFGBuilder took 509.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:58,917 INFO L168 Benchmark]: TraceAbstraction took 4593.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.3 MB in the end (delta: 266.1 MB). Peak memory consumption was 266.1 MB. Max. memory is 11.5 GB.
[2019-11-19 21:13:58,917 INFO L168 Benchmark]: Witness Printer took 104.92 ms. Allocated memory is still 1.2 GB. Free memory is still 826.3 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-11-19 21:13:58,919 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
* CACSL2BoogieTranslator took 386.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB.
* Boogie Procedure Inliner took 60.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB.
* Boogie Preprocessor took 33.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB.
* RCFGBuilder took 509.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB.
* TraceAbstraction took 4593.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.3 MB in the end (delta: 266.1 MB). Peak memory consumption was 266.1 MB. Max. memory is 11.5 GB.
* Witness Printer took 104.92 ms. Allocated memory is still 1.2 GB. Free memory is still 826.3 MB. There was no memory consumed. Max. memory is 11.5 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 70]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 12]: Loop Invariant
Derived loop invariant: (((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && !(0bv32 == \result)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
- InvariantResult [Line: 56]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 44]: Loop Invariant
Derived loop invariant: ((((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
- InvariantResult [Line: 12]: Loop Invariant
Derived loop invariant: (((~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && 2bv32 == \result) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
- InvariantResult [Line: 35]: Loop Invariant
Derived loop invariant: (((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
- InvariantResult [Line: 15]: Loop Invariant
Derived loop invariant: (x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
- InvariantResult [Line: 47]: Loop Invariant
Derived loop invariant: ((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) && x == ~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
- InvariantResult [Line: 15]: Loop Invariant
Derived loop invariant: (x == ~Pluszero~LONGDOUBLE() && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 32 locations, 1 error locations. Result: SAFE, OverallTime: 4.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 234 SDtfs, 215 SDslu, 432 SDs, 0 SdLazy, 153 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 197 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 8 MinimizatonAttempts, 59 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 184 HoareAnnotationTreeSize, 8 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 15 QuantifiedInterpolants, 16152 SizeOfPredicates, 38 NumberOfNonLiveVariables, 391 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...