./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: 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 /storage/repos/svcomp/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.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 f16872e95ceb4c5bb3d43220bb20359b76e5f33c .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: 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 /storage/repos/svcomp/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.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 f16872e95ceb4c5bb3d43220bb20359b76e5f33c ....................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:27:55,957 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:27:55,959 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:27:55,973 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:27:55,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:27:55,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:27:55,977 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:27:55,979 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:27:55,982 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:27:55,983 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:27:55,984 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:27:55,984 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:27:55,985 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:27:55,986 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:27:55,988 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:27:55,989 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:27:55,991 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:27:55,993 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:27:55,995 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:27:55,997 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:27:55,998 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:27:56,000 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:27:56,003 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:27:56,004 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:27:56,004 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:27:56,005 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:27:56,006 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:27:56,008 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:27:56,009 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:27:56,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:27:56,011 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:27:56,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:27:56,012 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:27:56,012 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:27:56,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:27:56,014 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:27:56,015 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 03:27:56,031 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:27:56,031 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:27:56,037 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:27:56,038 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:27:56,038 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:27:56,039 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:27:56,039 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:27:56,039 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 03:27:56,039 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:27:56,039 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:27:56,040 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:27:56,041 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:27:56,041 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:27:56,041 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:27:56,042 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:27:56,042 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:27:56,042 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:27:56,042 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:27:56,042 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:27:56,043 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:27:56,045 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:27:56,045 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:27:56,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:27:56,046 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:27:56,046 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:27:56,046 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 03:27:56,046 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:27:56,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 03:27:56,047 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> f16872e95ceb4c5bb3d43220bb20359b76e5f33c [2018-12-31 03:27:56,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:27:56,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:27:56,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:27:56,146 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:27:56,146 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:27:56,147 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-12-31 03:27:56,221 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9bc95f81/a1faf0b32ee14867a7309cc4778846f8/FLAG000331c97 [2018-12-31 03:27:56,755 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:27:56,755 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-12-31 03:27:56,763 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9bc95f81/a1faf0b32ee14867a7309cc4778846f8/FLAG000331c97 [2018-12-31 03:27:57,086 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9bc95f81/a1faf0b32ee14867a7309cc4778846f8 [2018-12-31 03:27:57,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:27:57,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:27:57,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:27:57,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:27:57,102 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:27:57,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ffa4193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57, skipping insertion in model container [2018-12-31 03:27:57,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:27:57,139 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:27:57,352 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:27:57,357 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:27:57,389 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:27:57,410 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:27:57,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57 WrapperNode [2018-12-31 03:27:57,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:27:57,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:27:57,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:27:57,414 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:27:57,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:27:57,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:27:57,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:27:57,465 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:27:57,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (1/1) ... [2018-12-31 03:27:57,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:27:57,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:27:57,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:27:57,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:27:57,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (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 [2018-12-31 03:27:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:27:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:27:57,885 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:27:57,885 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-31 03:27:57,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:27:57 BoogieIcfgContainer [2018-12-31 03:27:57,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:27:57,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:27:57,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:27:57,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:27:57,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:27:57" (1/3) ... [2018-12-31 03:27:57,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5479092c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:27:57, skipping insertion in model container [2018-12-31 03:27:57,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:27:57" (2/3) ... [2018-12-31 03:27:57,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5479092c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:27:57, skipping insertion in model container [2018-12-31 03:27:57,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:27:57" (3/3) ... [2018-12-31 03:27:57,895 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-12-31 03:27:57,919 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:27:57,946 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:27:57,996 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:27:58,058 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:27:58,059 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:27:58,059 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:27:58,059 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:27:58,060 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:27:58,060 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:27:58,060 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:27:58,060 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:27:58,060 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:27:58,078 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-12-31 03:27:58,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 03:27:58,086 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:27:58,087 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:27:58,089 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:27:58,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:27:58,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1706227183, now seen corresponding path program 1 times [2018-12-31 03:27:58,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:27:58,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:27:58,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:27:58,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:27:58,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:27:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:27:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:27:58,265 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 03:27:58,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:27:58 BoogieIcfgContainer [2018-12-31 03:27:58,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:27:58,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:27:58,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:27:58,298 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:27:58,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:27:57" (3/4) ... [2018-12-31 03:27:58,303 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 03:27:58,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:27:58,304 INFO L168 Benchmark]: Toolchain (without parser) took 1213.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:27:58,307 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:27:58,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.50 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:27:58,310 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:27:58,310 INFO L168 Benchmark]: Boogie Preprocessor took 26.69 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:27:58,311 INFO L168 Benchmark]: RCFGBuilder took 393.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-31 03:27:58,313 INFO L168 Benchmark]: TraceAbstraction took 410.07 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:27:58,314 INFO L168 Benchmark]: Witness Printer took 6.27 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. [2018-12-31 03:27:58,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.50 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.69 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 393.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 410.07 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 6.27 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: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 39. Possible FailurePath: [L17] double _EPS = 1e-6; VAL [_EPS=1/1000000] [L44] double d, dd, r; [L45] double epsilon = 1e-8; [L47] d = 1. VAL [_EPS=1/1000000] [L47] COND TRUE d <= 20. [L49] dd = __VERIFIER_nondet_double() [L21] double xn, xnp1, residu, lsup, linf; [L22] int i, cond; VAL [_EPS=1/1000000] [L23] COND TRUE Input <= 1.0 [L23] xn = 1.0 VAL [_EPS=1/1000000] [L24] xnp1 = xn [L25] residu = 2.0*_EPS*(xn+xnp1) [L26] lsup = _EPS * (xn+xnp1) [L27] linf = -lsup [L28] cond = ((residu > lsup) || (residu < linf)) [L29] i = 0 VAL [_EPS=1/1000000] [L30] COND FALSE !(\read(cond)) VAL [_EPS=1/1000000] [L39] return 1.0 / xnp1; VAL [_EPS=1/1000000] [L52] r = SqrtR(dd) [L15] COND TRUE !(cond) VAL [_EPS=1/1000000] [L15] __VERIFIER_error() VAL [_EPS=1/1000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.24-2e94e6a [2018-12-31 03:28:00,989 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:28:00,991 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:28:01,010 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:28:01,011 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:28:01,012 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:28:01,013 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:28:01,016 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:28:01,017 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:28:01,019 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:28:01,019 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:28:01,020 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:28:01,021 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:28:01,022 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:28:01,024 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:28:01,025 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:28:01,025 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:28:01,027 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:28:01,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:28:01,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:28:01,033 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:28:01,035 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:28:01,039 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:28:01,041 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:28:01,041 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:28:01,042 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:28:01,043 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:28:01,046 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:28:01,048 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:28:01,050 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:28:01,052 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:28:01,053 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:28:01,053 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:28:01,054 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:28:01,057 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:28:01,058 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:28:01,059 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 03:28:01,085 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:28:01,085 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:28:01,086 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:28:01,086 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:28:01,086 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:28:01,087 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:28:01,087 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:28:01,087 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:28:01,087 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:28:01,087 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:28:01,087 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:28:01,088 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:28:01,088 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 03:28:01,088 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 03:28:01,088 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:28:01,088 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:28:01,088 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:28:01,088 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:28:01,089 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:28:01,089 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:28:01,089 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:28:01,089 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:28:01,089 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:28:01,090 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:28:01,090 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:28:01,090 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:28:01,090 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 03:28:01,090 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:28:01,090 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 03:28:01,091 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 03:28:01,091 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> f16872e95ceb4c5bb3d43220bb20359b76e5f33c [2018-12-31 03:28:01,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:28:01,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:28:01,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:28:01,158 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:28:01,159 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:28:01,160 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-12-31 03:28:01,234 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c7a8cb2/63c04151c8e24cd2b3e970115547ebfa/FLAGdde97af5a [2018-12-31 03:28:01,718 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:28:01,719 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-12-31 03:28:01,725 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c7a8cb2/63c04151c8e24cd2b3e970115547ebfa/FLAGdde97af5a [2018-12-31 03:28:02,075 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c7a8cb2/63c04151c8e24cd2b3e970115547ebfa [2018-12-31 03:28:02,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:28:02,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:28:02,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:28:02,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:28:02,088 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:28:02,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3be09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02, skipping insertion in model container [2018-12-31 03:28:02,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:28:02,124 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:28:02,371 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:28:02,383 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:28:02,429 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:28:02,454 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:28:02,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02 WrapperNode [2018-12-31 03:28:02,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:28:02,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:28:02,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:28:02,457 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:28:02,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:28:02,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:28:02,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:28:02,511 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:28:02,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... [2018-12-31 03:28:02,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:28:02,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:28:02,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:28:02,575 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:28:02,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:28:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:28:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:28:13,198 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:28:13,198 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-31 03:28:13,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:28:13 BoogieIcfgContainer [2018-12-31 03:28:13,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:28:13,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:28:13,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:28:13,204 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:28:13,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:28:02" (1/3) ... [2018-12-31 03:28:13,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa71439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:28:13, skipping insertion in model container [2018-12-31 03:28:13,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:28:02" (2/3) ... [2018-12-31 03:28:13,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa71439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:28:13, skipping insertion in model container [2018-12-31 03:28:13,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:28:13" (3/3) ... [2018-12-31 03:28:13,213 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-12-31 03:28:13,223 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:28:13,232 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:28:13,255 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:28:13,295 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:28:13,296 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:28:13,296 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:28:13,296 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:28:13,296 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:28:13,297 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:28:13,297 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:28:13,297 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:28:13,297 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:28:13,313 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-12-31 03:28:13,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 03:28:13,319 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:28:13,320 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:28:13,323 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:28:13,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:28:13,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1706227183, now seen corresponding path program 1 times [2018-12-31 03:28:13,334 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:28:13,335 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-12-31 03:28:13,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:28:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:28:15,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:28:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:28:15,191 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:28:15,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:28:15,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 03:28:15,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 03:28:15,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 03:28:15,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-31 03:28:15,250 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2018-12-31 03:28:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:28:26,238 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2018-12-31 03:28:26,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 03:28:26,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-12-31 03:28:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:28:26,620 INFO L225 Difference]: With dead ends: 39 [2018-12-31 03:28:26,621 INFO L226 Difference]: Without dead ends: 17 [2018-12-31 03:28:26,625 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-31 03:28:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-31 03:28:26,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-12-31 03:28:26,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-31 03:28:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-12-31 03:28:26,664 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2018-12-31 03:28:26,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:28:26,664 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-12-31 03:28:26,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 03:28:26,665 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-12-31 03:28:26,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 03:28:26,665 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:28:26,665 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:28:26,666 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:28:26,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:28:26,666 INFO L82 PathProgramCache]: Analyzing trace with hash 68780179, now seen corresponding path program 1 times [2018-12-31 03:28:26,667 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:28:26,667 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-12-31 03:28:26,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:28:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:28:33,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:28:36,504 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (= (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xn~0) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1))))) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))) is different from false [2018-12-31 03:28:38,929 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse6 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse5) .cse6) (fp.mul roundNearestTiesToEven .cse5 .cse6)))) (.cse0 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse3)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse3 .cse4)) (= (fp.div roundNearestTiesToEven .cse3 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse3 .cse4)))))) (.cse2 (= (bvadd c_ULTIMATE.start_SqrtR_~cond~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not .cse1) (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32)) (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)))) (and .cse0 .cse2 .cse1) (and .cse0 .cse2 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) v_prenex_1))))) is different from false [2018-12-31 03:28:41,824 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (= (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1))))) (not (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3) (fp.mul roundNearestTiesToEven .cse2 .cse3)))) (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)))) is different from false [2018-12-31 03:28:44,190 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (= (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1))))) (not (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3) (fp.mul roundNearestTiesToEven .cse2 .cse3)))) (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)))) is different from true [2018-12-31 03:28:47,017 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse1 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)) (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse2 .cse3))) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse1 .cse4)) (= (fp.div roundNearestTiesToEven .cse1 .cse5) |c_ULTIMATE.start_SqrtR_#res|) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse1 .cse4)))))))) is different from false [2018-12-31 03:28:49,693 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse1 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)) (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse2 .cse3))) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse1 .cse4)) (= (fp.div roundNearestTiesToEven .cse1 .cse5) |c_ULTIMATE.start_SqrtR_#res|) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse1 .cse4)))))))) is different from true [2018-12-31 03:29:13,717 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (= (_ bv0 32) c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (exists ((v_prenex_6 (_ FloatingPoint 11 53)) (v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse0 v_prenex_5))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0))) (.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4))) (and (not (fp.leq v_prenex_5 .cse0)) (fp.geq v_prenex_5 (fp.sub roundNearestTiesToEven .cse0 .cse1)) (not (fp.gt .cse2 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (fp.leq v_prenex_5 (fp.add roundNearestTiesToEven .cse0 .cse1)) (not (fp.lt .cse2 v_prenex_6)) (not (fp.geq (fp.div roundNearestTiesToEven .cse0 .cse5) ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))))))))) .cse6) (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse13 (fp.div roundNearestTiesToEven .cse9 ULTIMATE.start_SqrtR_~Input))) (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse11 (fp.add roundNearestTiesToEven .cse13 .cse13))) (let ((.cse8 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse10) .cse11)) (.cse7 (fp.div roundNearestTiesToEven .cse9 .cse13)) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (fp.geq .cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0))) (not (fp.lt .cse8 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse9)) (not (fp.gt .cse8 (fp.mul roundNearestTiesToEven .cse10 .cse11))) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse9 .cse12)) (fp.leq .cse7 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse9 .cse12)))))))) (= (_ bv1 32) c_ULTIMATE.start___VERIFIER_assert_~cond)) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53)) (v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse17 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse19 (fp.div roundNearestTiesToEven .cse17 v_prenex_2))) (let ((.cse15 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse16 (fp.add roundNearestTiesToEven .cse19 .cse19))) (let ((.cse18 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0))) (.cse14 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse15) .cse16))) (and (not (fp.gt .cse14 (fp.mul roundNearestTiesToEven .cse15 .cse16))) (fp.leq v_prenex_2 (fp.add roundNearestTiesToEven .cse17 .cse18)) (not (fp.leq (fp.div roundNearestTiesToEven .cse17 .cse19) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.leq v_prenex_2 .cse17)) (fp.geq v_prenex_2 (fp.sub roundNearestTiesToEven .cse17 .cse18)) (not (fp.lt .cse14 v_prenex_3)))))))) .cse6))) is different from false [2018-12-31 03:29:27,280 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-31 03:29:27,482 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-12-31 03:29:27,483 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2018-12-31 03:29:27,493 INFO L168 Benchmark]: Toolchain (without parser) took 85412.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -84.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2018-12-31 03:29:27,495 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:29:27,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.67 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:29:27,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:29:27,499 INFO L168 Benchmark]: Boogie Preprocessor took 62.56 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:29:27,499 INFO L168 Benchmark]: RCFGBuilder took 10625.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-31 03:29:27,500 INFO L168 Benchmark]: TraceAbstraction took 74291.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:29:27,506 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.67 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.47 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.56 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 10625.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 74291.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...