./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer --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 044666208476da4ad4fcec9a18fadf3bde3ce58f .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer --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 044666208476da4ad4fcec9a18fadf3bde3ce58f ....................................................................................................................................................................................................................................................................................................................................... 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-cad4683 [2019-11-16 00:37:45,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:37:45,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:37:45,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:37:45,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:37:45,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:37:45,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:37:45,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:37:45,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:37:45,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:37:45,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:37:45,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:37:45,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:37:45,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:37:45,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:37:45,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:37:45,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:37:45,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:37:45,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:37:45,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:37:45,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:37:45,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:37:45,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:37:45,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:37:45,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:37:45,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:37:45,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:37:45,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:37:45,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:37:45,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:37:45,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:37:45,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:37:45,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:37:45,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:37:45,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:37:45,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:37:45,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:37:45,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:37:45,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:37:45,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:37:45,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:37:45,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:37:45,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:37:45,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:37:45,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:37:45,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:37:45,631 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:37:45,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:37:45,631 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:37:45,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:37:45,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:37:45,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:37:45,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:37:45,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:37:45,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:37:45,633 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:37:45,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:37:45,633 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:37:45,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:37:45,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:37:45,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:37:45,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:37:45,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:37:45,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:37:45,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:37:45,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:37:45,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:37:45,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:37:45,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:37:45,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:37:45,636 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer 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 -> 044666208476da4ad4fcec9a18fadf3bde3ce58f [2019-11-16 00:37:45,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:37:45,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:37:45,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:37:45,675 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:37:45,676 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:37:45,676 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2019-11-16 00:37:45,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data/6ffd53131/6b915144c9ea480693e40a5a6e170e9a/FLAGa2022d5d6 [2019-11-16 00:37:46,142 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:37:46,143 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2019-11-16 00:37:46,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data/6ffd53131/6b915144c9ea480693e40a5a6e170e9a/FLAGa2022d5d6 [2019-11-16 00:37:46,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data/6ffd53131/6b915144c9ea480693e40a5a6e170e9a [2019-11-16 00:37:46,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:37:46,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:37:46,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:37:46,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:37:46,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:37:46,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2949ba3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46, skipping insertion in model container [2019-11-16 00:37:46,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,184 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:37:46,203 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:37:46,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:37:46,463 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:37:46,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:37:46,495 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:37:46,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46 WrapperNode [2019-11-16 00:37:46,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:37:46,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:37:46,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:37:46,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:37:46,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:37:46,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:37:46,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:37:46,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:37:46,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... [2019-11-16 00:37:46,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:37:46,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:37:46,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:37:46,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:37:46,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/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 [2019-11-16 00:37:46,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:37:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:37:46,838 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:37:46,838 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-16 00:37:46,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:46 BoogieIcfgContainer [2019-11-16 00:37:46,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:37:46,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:37:46,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:37:46,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:37:46,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:37:46" (1/3) ... [2019-11-16 00:37:46,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1954c58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:46, skipping insertion in model container [2019-11-16 00:37:46,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:46" (2/3) ... [2019-11-16 00:37:46,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1954c58f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:46, skipping insertion in model container [2019-11-16 00:37:46,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:46" (3/3) ... [2019-11-16 00:37:46,846 INFO L109 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_interval.c [2019-11-16 00:37:46,855 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:37:46,862 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:37:46,871 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:37:46,892 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:37:46,892 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:37:46,893 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:37:46,893 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:37:46,913 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:37:46,913 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:37:46,913 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:37:46,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:37:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-16 00:37:46,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-16 00:37:46,932 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:37:46,933 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:37:46,935 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:37:46,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:37:46,941 INFO L82 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2019-11-16 00:37:46,948 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:37:46,949 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861923319] [2019-11-16 00:37:46,949 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:37:46,949 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:37:46,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:37:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:37:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:37:47,078 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:37:47,078 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:37:47,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:37:47 BoogieIcfgContainer [2019-11-16 00:37:47,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:37:47,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:37:47,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:37:47,100 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:37:47,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:46" (3/4) ... [2019-11-16 00:37:47,103 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:37:47,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:37:47,106 INFO L168 Benchmark]: Toolchain (without parser) took 937.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:37:47,106 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:37:47,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:37:47,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.68 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. [2019-11-16 00:37:47,108 INFO L168 Benchmark]: Boogie Preprocessor took 26.30 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. [2019-11-16 00:37:47,109 INFO L168 Benchmark]: RCFGBuilder took 277.92 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: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:37:47,109 INFO L168 Benchmark]: TraceAbstraction took 258.99 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:37:47,110 INFO L168 Benchmark]: Witness Printer took 4.25 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. [2019-11-16 00:37:47,113 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.68 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. * Boogie Preprocessor took 26.30 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 277.92 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: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 258.99 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 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 51, 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, r; [L46] d = __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] [L49] r = SqrtR(d) [L15] COND TRUE !(cond) VAL [_EPS=1/1000000] [L15] __VERIFIER_error() VAL [_EPS=1/1000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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-cad4683 [2019-11-16 00:37:49,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:37:49,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:37:49,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:37:49,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:37:49,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:37:49,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:37:49,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:37:49,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:37:49,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:37:49,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:37:49,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:37:49,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:37:49,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:37:49,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:37:49,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:37:49,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:37:49,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:37:49,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:37:49,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:37:49,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:37:49,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:37:49,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:37:49,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:37:49,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:37:49,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:37:49,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:37:49,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:37:49,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:37:49,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:37:49,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:37:49,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:37:49,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:37:49,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:37:49,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:37:49,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:37:49,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:37:49,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:37:49,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:37:49,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:37:49,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:37:49,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:37:49,410 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:37:49,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:37:49,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:37:49,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:37:49,412 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:37:49,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:37:49,412 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:37:49,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:37:49,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:37:49,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:37:49,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:37:49,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:37:49,413 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:37:49,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:37:49,414 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:37:49,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:37:49,414 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:37:49,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:37:49,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:37:49,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:37:49,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:37:49,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:37:49,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:37:49,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:37:49,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:37:49,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:37:49,417 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:37:49,417 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:37:49,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:37:49,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:37:49,418 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer 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 -> 044666208476da4ad4fcec9a18fadf3bde3ce58f [2019-11-16 00:37:49,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:37:49,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:37:49,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:37:49,462 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:37:49,463 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:37:49,463 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2019-11-16 00:37:49,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data/38c5b8ad5/0fa1308179594e3c97dfdb61129ec778/FLAG3e98ae5dc [2019-11-16 00:37:49,915 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:37:49,916 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2019-11-16 00:37:49,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data/38c5b8ad5/0fa1308179594e3c97dfdb61129ec778/FLAG3e98ae5dc [2019-11-16 00:37:50,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/data/38c5b8ad5/0fa1308179594e3c97dfdb61129ec778 [2019-11-16 00:37:50,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:37:50,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:37:50,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:37:50,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:37:50,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:37:50,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374c534b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50, skipping insertion in model container [2019-11-16 00:37:50,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,312 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:37:50,332 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:37:50,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:37:50,539 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:37:50,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:37:50,580 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:37:50,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50 WrapperNode [2019-11-16 00:37:50,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:37:50,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:37:50,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:37:50,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:37:50,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:37:50,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:37:50,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:37:50,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:37:50,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... [2019-11-16 00:37:50,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:37:50,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:37:50,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:37:50,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:37:50,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/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 [2019-11-16 00:37:50,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:37:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:37:59,544 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:37:59,545 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-16 00:37:59,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:59 BoogieIcfgContainer [2019-11-16 00:37:59,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:37:59,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:37:59,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:37:59,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:37:59,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:37:50" (1/3) ... [2019-11-16 00:37:59,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470c7e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:59, skipping insertion in model container [2019-11-16 00:37:59,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:50" (2/3) ... [2019-11-16 00:37:59,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470c7e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:59, skipping insertion in model container [2019-11-16 00:37:59,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:59" (3/3) ... [2019-11-16 00:37:59,552 INFO L109 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_interval.c [2019-11-16 00:37:59,561 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:37:59,568 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:37:59,578 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:37:59,600 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:37:59,600 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:37:59,600 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:37:59,600 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:37:59,601 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:37:59,601 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:37:59,601 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:37:59,601 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:37:59,615 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-16 00:37:59,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-16 00:37:59,620 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:37:59,621 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:37:59,623 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:37:59,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:37:59,628 INFO L82 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2019-11-16 00:37:59,637 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:37:59,638 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154400909] [2019-11-16 00:37:59,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/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 [2019-11-16 00:38:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:38:01,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-16 00:38:01,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:38:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:38:01,253 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:38:03,368 WARN L838 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse0) (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse0))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_5 (_ FloatingPoint 11 53))) (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_5))) is different from false [2019-11-16 00:38:05,450 WARN L860 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse0) (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse0))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_5 (_ FloatingPoint 11 53))) (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_5))) is different from true [2019-11-16 00:38:11,479 WARN L191 SmtUtils]: Spent 3.61 s on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2019-11-16 00:38:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:38:11,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154400909] [2019-11-16 00:38:11,482 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:38:11,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-16 00:38:11,483 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592558229] [2019-11-16 00:38:11,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:38:11,487 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:38:11,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:38:11,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2019-11-16 00:38:11,502 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 8 states. [2019-11-16 00:38:13,611 WARN L860 $PredicateComparison]: unable to prove that (and (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_ULTIMATE.start_SqrtR_~xn~0) (or (let ((.cse0 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse0) (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse0))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_5 (_ FloatingPoint 11 53))) (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_5)))) is different from true [2019-11-16 00:38:20,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:38:20,720 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2019-11-16 00:38:20,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-16 00:38:20,722 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-16 00:38:20,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:38:20,730 INFO L225 Difference]: With dead ends: 25 [2019-11-16 00:38:20,730 INFO L226 Difference]: Without dead ends: 12 [2019-11-16 00:38:20,733 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2019-11-16 00:38:20,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-16 00:38:20,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-16 00:38:20,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-16 00:38:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-11-16 00:38:20,762 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2019-11-16 00:38:20,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:38:20,763 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-11-16 00:38:20,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:38:20,763 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-16 00:38:20,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-16 00:38:20,764 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:38:20,764 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:38:20,989 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:38:20,990 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:38:20,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:38:20,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2019-11-16 00:38:20,991 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:38:20,991 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85942422] [2019-11-16 00:38:20,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5925bbe-221f-4fb5-80dc-2b23242ab1f8/bin/uautomizer/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 [2019-11-16 00:38:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:38:26,019 WARN L254 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-16 00:38:26,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:38:28,470 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))) (and (= (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xn~0) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0))))) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))) is different from false [2019-11-16 00:38:30,557 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse8 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse4 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse7) .cse8)) (.cse5 (fp.mul roundNearestTiesToEven .cse7 .cse8))) (let ((.cse1 (fp.gt .cse4 .cse5)) (.cse0 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= c_ULTIMATE.start_SqrtR_~xnp1~0 (fp.div roundNearestTiesToEven .cse6 ULTIMATE.start_SqrtR_~Input)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse6)))))) (.cse3 (fp.lt .cse4 (fp.neg .cse5))) (.cse2 (= (_ bv1 32) c_ULTIMATE.start_SqrtR_~cond~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (= (_ bv0 32) c_ULTIMATE.start_SqrtR_~cond~0) (not .cse3) (not .cse1)) (and .cse0 .cse3 .cse2))))) is different from false [2019-11-16 00:38:34,335 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4)) (.cse2 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= c_ULTIMATE.start_SqrtR_~xnp1~0 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0))))) (not (fp.lt .cse1 (fp.neg .cse2))) (not (fp.gt .cse1 .cse2))))) is different from false [2019-11-16 00:38:36,688 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4)) (.cse2 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= c_ULTIMATE.start_SqrtR_~xnp1~0 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0))))) (not (fp.lt .cse1 (fp.neg .cse2))) (not (fp.gt .cse1 .cse2))))) is different from true [2019-11-16 00:38:39,410 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse1 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse1 .cse1))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse3 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (= |c_ULTIMATE.start_SqrtR_#res| (fp.div roundNearestTiesToEven .cse0 .cse1)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.gt .cse2 .cse3)) (not (fp.lt .cse2 (fp.neg .cse3))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)))))))) is different from false [2019-11-16 00:38:42,022 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse1 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse1 .cse1))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse3 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (= |c_ULTIMATE.start_SqrtR_#res| (fp.div roundNearestTiesToEven .cse0 .cse1)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.gt .cse2 .cse3)) (not (fp.lt .cse2 (fp.neg .cse3))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)))))))) is different from true [2019-11-16 00:38:42,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:38:44,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:39:04,777 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse1 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse1 .cse1))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse3 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (not (fp.leq (fp.div roundNearestTiesToEven .cse0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.gt .cse2 .cse3)) (not (fp.lt .cse2 (fp.neg .cse3))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)))))))) .cse6) (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse11 (fp.div roundNearestTiesToEven .cse10 ULTIMATE.start_SqrtR_~Input))) (let ((.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse13 (fp.add roundNearestTiesToEven .cse11 .cse11))) (let ((.cse8 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse12) .cse13)) (.cse9 (fp.mul roundNearestTiesToEven .cse12 .cse13)) (.cse7 (fp.div roundNearestTiesToEven .cse10 .cse11))) (and (fp.geq .cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.gt .cse8 .cse9)) (not (fp.lt .cse8 (fp.neg .cse9))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse10)) (fp.leq .cse7 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)))))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse14 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse15 (fp.div roundNearestTiesToEven .cse14 ULTIMATE.start_SqrtR_~Input))) (let ((.cse18 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse19 (fp.add roundNearestTiesToEven .cse15 .cse15))) (let ((.cse16 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse18) .cse19)) (.cse17 (fp.mul roundNearestTiesToEven .cse18 .cse19))) (and (not (fp.geq (fp.div roundNearestTiesToEven .cse14 .cse15) ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.gt .cse16 .cse17)) (not (fp.lt .cse16 (fp.neg .cse17))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse14)))))))) .cse6))) is different from false [2019-11-16 00:39:18,915 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 v_prenex_1))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse3 .cse3))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse1 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (not (fp.gt .cse0 .cse1)) (fp.geq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq v_prenex_1 .cse2)) (not (fp.leq (fp.div roundNearestTiesToEven .cse2 .cse3) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.lt .cse0 (fp.neg .cse1))) (fp.leq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)))))))) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse6 ULTIMATE.start_SqrtR_~Input))) (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse11 (fp.add roundNearestTiesToEven .cse7 .cse7))) (let ((.cse8 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse10) .cse11)) (.cse9 (fp.mul roundNearestTiesToEven .cse10 .cse11))) (and (not (fp.geq (fp.div roundNearestTiesToEven .cse6 .cse7) ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.gt .cse8 .cse9)) (not (fp.lt .cse8 (fp.neg .cse9))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse6))))))))) is different from false [2019-11-16 00:39:21,587 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 v_prenex_1))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse3 .cse3))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse1 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (not (fp.gt .cse0 .cse1)) (fp.geq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq v_prenex_1 .cse2)) (not (fp.leq (fp.div roundNearestTiesToEven .cse2 .cse3) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.lt .cse0 (fp.neg .cse1))) (fp.leq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)))))))) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse6 ULTIMATE.start_SqrtR_~Input))) (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse11 (fp.add roundNearestTiesToEven .cse7 .cse7))) (let ((.cse8 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse10) .cse11)) (.cse9 (fp.mul roundNearestTiesToEven .cse10 .cse11))) (and (not (fp.geq (fp.div roundNearestTiesToEven .cse6 .cse7) ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.gt .cse8 .cse9)) (not (fp.lt .cse8 (fp.neg .cse9))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse6))))))))) is different from true [2019-11-16 00:39:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:39:21,590 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:39:24,043 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))))) is different from false [2019-11-16 00:39:27,946 WARN L838 $PredicateComparison]: unable to prove that (or (not (= (_ bv0 32) c_ULTIMATE.start_SqrtR_~cond~0)) (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))))) is different from false [2019-11-16 00:39:30,317 WARN L860 $PredicateComparison]: unable to prove that (or (not (= (_ bv0 32) c_ULTIMATE.start_SqrtR_~cond~0)) (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))))) is different from true [2019-11-16 00:39:32,773 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (let ((.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse3)) (.cse2 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse3))) (or (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_ULTIMATE.start_SqrtR_~xn~0))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))))) (fp.lt .cse1 (fp.neg .cse2)) (fp.gt .cse1 .cse2)))) is different from false [2019-11-16 00:39:35,229 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (let ((.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse3)) (.cse2 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse3))) (or (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) c_ULTIMATE.start_SqrtR_~xn~0))) (and (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))))) (fp.lt .cse1 (fp.neg .cse2)) (fp.gt .cse1 .cse2)))) is different from true [2019-11-16 00:39:38,056 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse4 (fp.div roundNearestTiesToEven .cse0 c_ULTIMATE.start_SqrtR_~Input))) (let ((.cse5 (fp.add roundNearestTiesToEven .cse4 .cse4))) (let ((.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse5)) (.cse2 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse5))) (or (fp.leq c_ULTIMATE.start_SqrtR_~Input .cse0) (fp.gt .cse1 .cse2) (fp.lt .cse1 (fp.neg .cse2)) (let ((.cse3 (fp.div roundNearestTiesToEven .cse0 .cse4))) (and (fp.geq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 5.0))))))))) is different from false [2019-11-16 00:39:40,853 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse4 (fp.div roundNearestTiesToEven .cse0 c_ULTIMATE.start_SqrtR_~Input))) (let ((.cse5 (fp.add roundNearestTiesToEven .cse4 .cse4))) (let ((.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse5)) (.cse2 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse5))) (or (fp.leq c_ULTIMATE.start_SqrtR_~Input .cse0) (fp.gt .cse1 .cse2) (fp.lt .cse1 (fp.neg .cse2)) (let ((.cse3 (fp.div roundNearestTiesToEven .cse0 .cse4))) (and (fp.geq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 5.0))))))))) is different from true [2019-11-16 00:39:40,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:39:43,529 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_SqrtR_~Input_7 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 v_ULTIMATE.start_SqrtR_~Input_7))) (let ((.cse4 (fp.add roundNearestTiesToEven .cse3 .cse3))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse4)) (.cse1 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse4))) (or (fp.gt .cse0 .cse1) (fp.geq (fp.div roundNearestTiesToEven .cse2 .cse3) ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))) (not (fp.leq v_ULTIMATE.start_SqrtR_~Input_7 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))) (not (fp.geq v_ULTIMATE.start_SqrtR_~Input_7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0)))) (fp.leq v_ULTIMATE.start_SqrtR_~Input_7 .cse2) (fp.lt .cse0 (fp.neg .cse1)))))))) (forall ((v_ULTIMATE.start_SqrtR_~Input_7 (_ FloatingPoint 11 53))) (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse8 (fp.div roundNearestTiesToEven .cse7 v_ULTIMATE.start_SqrtR_~Input_7))) (let ((.cse9 (fp.add roundNearestTiesToEven .cse8 .cse8))) (let ((.cse5 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse9)) (.cse6 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse9))) (or (fp.gt .cse5 .cse6) (not (fp.leq v_ULTIMATE.start_SqrtR_~Input_7 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))) (fp.leq (fp.div roundNearestTiesToEven .cse7 .cse8) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (not (fp.geq v_ULTIMATE.start_SqrtR_~Input_7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0)))) (fp.leq v_ULTIMATE.start_SqrtR_~Input_7 .cse7) (fp.lt .cse5 (fp.neg .cse6))))))))) is different from false [2019-11-16 00:39:45,498 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-16 00:39:45,699 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:39:45,700 FATAL L? ?]: 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:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:851) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:580) 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.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) 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.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 42 more [2019-11-16 00:39:45,704 INFO L168 Benchmark]: Toolchain (without parser) took 115409.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -111.6 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:45,704 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:39:45,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:45,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -212.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:45,706 INFO L168 Benchmark]: Boogie Preprocessor took 26.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:45,707 INFO L168 Benchmark]: RCFGBuilder took 8842.34 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:45,707 INFO L168 Benchmark]: TraceAbstraction took 106156.24 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: 57.0 MB). Peak memory consumption was 57.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:39:45,711 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 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 95.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -212.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8842.34 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 106156.24 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: 57.0 MB). Peak memory consumption was 57.0 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...