./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/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 f16872e95ceb4c5bb3d43220bb20359b76e5f33c ............................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/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 f16872e95ceb4c5bb3d43220bb20359b76e5f33c ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:15:07,378 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:15:07,380 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:15:07,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:15:07,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:15:07,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:15:07,393 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:15:07,394 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:15:07,396 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:15:07,397 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:15:07,398 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:15:07,398 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:15:07,399 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:15:07,400 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:15:07,401 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:15:07,401 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:15:07,402 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:15:07,404 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:15:07,405 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:15:07,407 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:15:07,408 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:15:07,409 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:15:07,411 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:15:07,411 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:15:07,412 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:15:07,412 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:15:07,413 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:15:07,414 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:15:07,415 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:15:07,416 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:15:07,416 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:15:07,417 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:15:07,417 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:15:07,417 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:15:07,418 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:15:07,418 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:15:07,419 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:15:07,431 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:15:07,431 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:15:07,432 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:15:07,432 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:15:07,433 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:15:07,433 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:15:07,433 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:15:07,433 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:15:07,433 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:15:07,433 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:15:07,434 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:15:07,434 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:15:07,434 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:15:07,434 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:15:07,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:15:07,435 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:15:07,435 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:15:07,435 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:15:07,435 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:15:07,435 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:15:07,435 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:15:07,436 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:15:07,436 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:15:07,436 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:15:07,436 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:15:07,436 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:15:07,437 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:15:07,437 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:15:07,437 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:15:07,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:15:07,437 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/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 -> f16872e95ceb4c5bb3d43220bb20359b76e5f33c [2018-11-28 11:15:07,467 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:15:07,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:15:07,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:15:07,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:15:07,480 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:15:07,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-11-28 11:15:07,529 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data/446ade6b6/a3279683173e4981adb43a5f3a15310f/FLAG3024a1f0e [2018-11-28 11:15:07,855 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:15:07,856 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-11-28 11:15:07,860 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data/446ade6b6/a3279683173e4981adb43a5f3a15310f/FLAG3024a1f0e [2018-11-28 11:15:08,293 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data/446ade6b6/a3279683173e4981adb43a5f3a15310f [2018-11-28 11:15:08,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:15:08,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:15:08,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:15:08,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:15:08,300 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:15:08,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229cade9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08, skipping insertion in model container [2018-11-28 11:15:08,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:15:08,323 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:15:08,444 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:15:08,447 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:15:08,462 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:15:08,471 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:15:08,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08 WrapperNode [2018-11-28 11:15:08,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:15:08,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:15:08,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:15:08,472 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:15:08,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:15:08,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:15:08,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:15:08,486 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:15:08,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... [2018-11-28 11:15:08,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:15:08,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:15:08,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:15:08,505 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:15:08,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/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 [2018-11-28 11:15:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:15:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:15:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure SqrtR [2018-11-28 11:15:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure SqrtR [2018-11-28 11:15:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:15:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:15:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:15:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:15:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 11:15:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 11:15:08,726 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:15:08,726 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 11:15:08,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:15:08 BoogieIcfgContainer [2018-11-28 11:15:08,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:15:08,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:15:08,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:15:08,731 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:15:08,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:15:08" (1/3) ... [2018-11-28 11:15:08,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f95407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:15:08, skipping insertion in model container [2018-11-28 11:15:08,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:08" (2/3) ... [2018-11-28 11:15:08,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f95407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:15:08, skipping insertion in model container [2018-11-28 11:15:08,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:15:08" (3/3) ... [2018-11-28 11:15:08,734 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-11-28 11:15:08,743 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:15:08,750 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:15:08,765 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:15:08,792 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:15:08,793 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:15:08,793 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:15:08,793 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:15:08,794 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:15:08,794 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:15:08,794 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:15:08,794 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:15:08,794 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:15:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-28 11:15:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 11:15:08,816 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:15:08,817 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:15:08,819 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:15:08,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:15:08,824 INFO L82 PathProgramCache]: Analyzing trace with hash -995072322, now seen corresponding path program 1 times [2018-11-28 11:15:08,826 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:15:08,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:15:08,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:15:08,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:15:08,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:15:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:15:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:15:08,936 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:15:08,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:15:08 BoogieIcfgContainer [2018-11-28 11:15:08,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:15:08,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:15:08,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:15:08,959 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:15:08,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:15:08" (3/4) ... [2018-11-28 11:15:08,963 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:15:08,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:15:08,964 INFO L168 Benchmark]: Toolchain (without parser) took 667.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -141.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:15:08,966 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:15:08,967 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.09 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:15:08,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.59 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:15:08,968 INFO L168 Benchmark]: Boogie Preprocessor took 18.64 ms. Allocated memory is still 1.0 GB. Free memory is still 939.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:15:08,968 INFO L168 Benchmark]: RCFGBuilder took 222.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:15:08,969 INFO L168 Benchmark]: TraceAbstraction took 230.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:15:08,969 INFO L168 Benchmark]: Witness Printer took 5.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:15:08,972 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.09 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.59 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.64 ms. Allocated memory is still 1.0 GB. Free memory is still 939.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 222.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 230.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 39. Possible FailurePath: [L17] double _EPS = 1e-6; VAL [\old(_EPS)=2, _EPS=1/1000000] [L44] double d, dd, r; [L45] double epsilon = 1e-8; [L47] d = 1. VAL [_EPS=1/1000000, d=1, epsilon=1/100000000] [L47] COND TRUE d <= 20. [L49] dd = __VERIFIER_nondet_double() [L52] CALL, EXPR SqrtR(dd) VAL [\old(Input)=3, _EPS=1/1000000] [L21] double xn, xnp1, residu, lsup, linf; [L22] int i, cond; VAL [\old(Input)=3, _EPS=1/1000000, Input=3] [L23] COND TRUE Input <= 1.0 [L23] xn = 1.0 VAL [\old(Input)=3, _EPS=1/1000000, Input=3, xn=1] [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 [\old(Input)=3, _EPS=1/1000000, cond=0, i=0, Input=3, xn=1, xn=1] [L30] COND FALSE !(\read(cond)) VAL [\old(Input)=3, _EPS=1/1000000, cond=0, i=0, Input=3, xn=1, xn=1] [L39] return 1.0 / xnp1; VAL [\old(Input)=3, _EPS=1/1000000, cond=0, i=0, Input=3, xn=1, xn=1] [L52] RET, EXPR SqrtR(dd) VAL [_EPS=1/1000000, d=3, d=1, epsilon=1/100000000, SqrtR(dd)=4] [L52] r = SqrtR(dd) [L54] CALL __VERIFIER_assert(r >= 0.9 && r <= 5.) VAL [\old(cond)=0, _EPS=1/1000000] [L15] COND TRUE !(cond) VAL [\old(cond)=0, _EPS=1/1000000, cond=0] [L15] __VERIFIER_error() VAL [\old(cond)=0, _EPS=1/1000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:15:10,547 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:15:10,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:15:10,558 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:15:10,559 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:15:10,559 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:15:10,560 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:15:10,562 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:15:10,563 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:15:10,563 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:15:10,564 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:15:10,564 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:15:10,565 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:15:10,566 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:15:10,567 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:15:10,568 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:15:10,568 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:15:10,570 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:15:10,572 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:15:10,573 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:15:10,574 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:15:10,575 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:15:10,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:15:10,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:15:10,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:15:10,579 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:15:10,580 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:15:10,580 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:15:10,581 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:15:10,582 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:15:10,582 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:15:10,583 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:15:10,583 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:15:10,583 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:15:10,584 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:15:10,585 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:15:10,585 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 11:15:10,597 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:15:10,597 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:15:10,598 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:15:10,598 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:15:10,599 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:15:10,599 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:15:10,599 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:15:10,599 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:15:10,600 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:15:10,600 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:15:10,600 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:15:10,600 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:15:10,600 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:15:10,600 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:15:10,600 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 11:15:10,601 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 11:15:10,601 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:15:10,601 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:15:10,601 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:15:10,601 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:15:10,601 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:15:10,602 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:15:10,604 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:15:10,604 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:15:10,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:15:10,604 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:15:10,604 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:15:10,604 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:15:10,605 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 11:15:10,605 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:15:10,605 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 11:15:10,605 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 11:15:10,605 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/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 -> f16872e95ceb4c5bb3d43220bb20359b76e5f33c [2018-11-28 11:15:10,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:15:10,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:15:10,644 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:15:10,645 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:15:10,645 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:15:10,645 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-11-28 11:15:10,684 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data/fbca46ba0/93ffdac3772242d5994775ed19186ca7/FLAG5341b372f [2018-11-28 11:15:11,024 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:15:11,025 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/sv-benchmarks/c/float-benchs/sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-11-28 11:15:11,029 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data/fbca46ba0/93ffdac3772242d5994775ed19186ca7/FLAG5341b372f [2018-11-28 11:15:11,458 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/uautomizer/data/fbca46ba0/93ffdac3772242d5994775ed19186ca7 [2018-11-28 11:15:11,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:15:11,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:15:11,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:15:11,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:15:11,465 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:15:11,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3eb2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11, skipping insertion in model container [2018-11-28 11:15:11,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:15:11,491 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:15:11,612 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:15:11,616 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:15:11,638 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:15:11,650 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:15:11,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11 WrapperNode [2018-11-28 11:15:11,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:15:11,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:15:11,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:15:11,652 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:15:11,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:15:11,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:15:11,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:15:11,676 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:15:11,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... [2018-11-28 11:15:11,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:15:11,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:15:11,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:15:11,699 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:15:11,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/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 [2018-11-28 11:15:11,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:15:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure SqrtR [2018-11-28 11:15:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure SqrtR [2018-11-28 11:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:15:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:15:11,783 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:15:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 11:15:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 11:15:21,421 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:15:21,421 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 11:15:21,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:15:21 BoogieIcfgContainer [2018-11-28 11:15:21,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:15:21,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:15:21,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:15:21,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:15:21,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:15:11" (1/3) ... [2018-11-28 11:15:21,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7870c4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:15:21, skipping insertion in model container [2018-11-28 11:15:21,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:11" (2/3) ... [2018-11-28 11:15:21,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7870c4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:15:21, skipping insertion in model container [2018-11-28 11:15:21,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:15:21" (3/3) ... [2018-11-28 11:15:21,430 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant_true-unreach-call.c [2018-11-28 11:15:21,438 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:15:21,445 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:15:21,457 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:15:21,481 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:15:21,482 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:15:21,482 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:15:21,482 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:15:21,483 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:15:21,483 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:15:21,483 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:15:21,483 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:15:21,483 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:15:21,496 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-28 11:15:21,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 11:15:21,501 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:15:21,502 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:15:21,504 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:15:21,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:15:21,508 INFO L82 PathProgramCache]: Analyzing trace with hash -995072322, now seen corresponding path program 1 times [2018-11-28 11:15:21,511 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:15:21,512 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/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 [2018-11-28 11:15:21,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:15:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:15:23,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:15:32,432 WARN L180 SmtUtils]: Spent 7.40 s on a formula simplification. DAG size of input: 31 DAG size of output: 9 [2018-11-28 11:15:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:15:32,437 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:15:32,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:15:32,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:15:32,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 11:15:32,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 11:15:32,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:15:32,477 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2018-11-28 11:15:39,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:15:39,859 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2018-11-28 11:15:39,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:15:39,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-28 11:15:39,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:15:39,870 INFO L225 Difference]: With dead ends: 54 [2018-11-28 11:15:39,870 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 11:15:39,874 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:15:39,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 11:15:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-28 11:15:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 11:15:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-11-28 11:15:39,907 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 20 [2018-11-28 11:15:39,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:15:39,907 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-11-28 11:15:39,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 11:15:39,908 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-11-28 11:15:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 11:15:39,909 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:15:39,909 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:15:39,909 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:15:39,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:15:39,910 INFO L82 PathProgramCache]: Analyzing trace with hash -294007744, now seen corresponding path program 1 times [2018-11-28 11:15:39,910 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:15:39,910 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_718a6bab-c35c-4245-9f4c-5ee2ac52bc67/bin-2019/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 [2018-11-28 11:15:39,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:15:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:15:43,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:16:15,781 WARN L180 SmtUtils]: Spent 14.07 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 11:16:18,114 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (let ((.cse4 (fp.add roundNearestTiesToEven c_SqrtR_~xnp1~0 c_SqrtR_~xnp1~0))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse4)) (.cse3 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse4))) (let ((.cse1 (fp.gt .cse2 .cse3)) (.cse0 (fp.lt .cse2 (fp.neg .cse3)))) (or (and (or .cse0 .cse1) (= (_ bv1 32) c_SqrtR_~cond~0)) (and (not .cse1) (= (_ bv0 32) c_SqrtR_~cond~0) (not .cse0)))))) (not (fp.leq |c_SqrtR_#in~Input| .cse5)) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (= (fp.div roundNearestTiesToEven .cse5 |c_SqrtR_#in~Input|) c_SqrtR_~xnp1~0))) is different from false [2018-11-28 11:16:20,189 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (let ((.cse4 (fp.add roundNearestTiesToEven c_SqrtR_~xnp1~0 c_SqrtR_~xnp1~0))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse4)) (.cse3 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse4))) (let ((.cse1 (fp.gt .cse2 .cse3)) (.cse0 (fp.lt .cse2 (fp.neg .cse3)))) (or (and (or .cse0 .cse1) (= (_ bv1 32) c_SqrtR_~cond~0)) (and (not .cse1) (= (_ bv0 32) c_SqrtR_~cond~0) (not .cse0)))))) (not (fp.leq |c_SqrtR_#in~Input| .cse5)) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (= (fp.div roundNearestTiesToEven .cse5 |c_SqrtR_#in~Input|) c_SqrtR_~xnp1~0))) is different from true [2018-11-28 11:16:22,572 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.add roundNearestTiesToEven c_SqrtR_~xnp1~0 c_SqrtR_~xnp1~0))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse3)) (.cse1 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse3))) (and (not (fp.gt .cse0 .cse1)) (not (fp.leq |c_SqrtR_#in~Input| .cse2)) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (= (fp.div roundNearestTiesToEven .cse2 |c_SqrtR_#in~Input|) c_SqrtR_~xnp1~0) (not (fp.lt .cse0 (fp.neg .cse1)))))) is different from false [2018-11-28 11:16:24,647 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.add roundNearestTiesToEven c_SqrtR_~xnp1~0 c_SqrtR_~xnp1~0))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) c_~_EPS~0) .cse3)) (.cse1 (fp.mul roundNearestTiesToEven c_~_EPS~0 .cse3))) (and (not (fp.gt .cse0 .cse1)) (not (fp.leq |c_SqrtR_#in~Input| .cse2)) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (= (fp.div roundNearestTiesToEven .cse2 |c_SqrtR_#in~Input|) c_SqrtR_~xnp1~0) (not (fp.lt .cse0 (fp.neg .cse1)))))) is different from true [2018-11-28 11:16:27,296 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 |c_SqrtR_#in~Input|))) (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))) (and (not (fp.lt .cse0 (fp.neg .cse1))) (= |c_SqrtR_#res| (fp.div roundNearestTiesToEven .cse2 .cse3)) (not (fp.leq |c_SqrtR_#in~Input| .cse2)) (not (fp.gt .cse0 .cse1)) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))))))) is different from false [2018-11-28 11:16:29,684 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 |c_SqrtR_#in~Input|))) (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))) (and (not (fp.lt .cse0 (fp.neg .cse1))) (= |c_SqrtR_#res| (fp.div roundNearestTiesToEven .cse2 .cse3)) (not (fp.leq |c_SqrtR_#in~Input| .cse2)) (not (fp.gt .cse0 .cse1)) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))))))) is different from true [2018-11-28 11:16:32,343 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~dd~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse4 (fp.div roundNearestTiesToEven .cse2 main_~dd~0))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse6 (fp.add roundNearestTiesToEven .cse4 .cse4))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse5) .cse6)) (.cse1 (fp.mul roundNearestTiesToEven .cse5 .cse6)) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.gt .cse0 .cse1)) (not (fp.leq main_~dd~0 .cse2)) (fp.leq main_~dd~0 (fp.add roundNearestTiesToEven .cse2 .cse3)) (not (fp.lt .cse0 (fp.neg .cse1))) (fp.geq main_~dd~0 (fp.sub roundNearestTiesToEven .cse2 .cse3)) (= |c_main_#t~ret3| (fp.div roundNearestTiesToEven .cse2 .cse4)))))))) is different from false [2018-11-28 11:16:34,889 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~dd~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse4 (fp.div roundNearestTiesToEven .cse2 main_~dd~0))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse6 (fp.add roundNearestTiesToEven .cse4 .cse4))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse5) .cse6)) (.cse1 (fp.mul roundNearestTiesToEven .cse5 .cse6)) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.gt .cse0 .cse1)) (not (fp.leq main_~dd~0 .cse2)) (fp.leq main_~dd~0 (fp.add roundNearestTiesToEven .cse2 .cse3)) (not (fp.lt .cse0 (fp.neg .cse1))) (fp.geq main_~dd~0 (fp.sub roundNearestTiesToEven .cse2 .cse3)) (= |c_main_#t~ret3| (fp.div roundNearestTiesToEven .cse2 .cse4)))))))) is different from true [2018-11-28 11:16:37,561 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~dd~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 main_~dd~0))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse6 (fp.add roundNearestTiesToEven .cse3 .cse3))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse5) .cse6)) (.cse1 (fp.mul roundNearestTiesToEven .cse5 .cse6)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.gt .cse0 .cse1)) (not (fp.leq main_~dd~0 .cse2)) (= (fp.div roundNearestTiesToEven .cse2 .cse3) c_main_~r~0) (fp.leq main_~dd~0 (fp.add roundNearestTiesToEven .cse2 .cse4)) (not (fp.lt .cse0 (fp.neg .cse1))) (fp.geq main_~dd~0 (fp.sub roundNearestTiesToEven .cse2 .cse4)))))))) is different from false [2018-11-28 11:16:40,109 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~dd~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 main_~dd~0))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse6 (fp.add roundNearestTiesToEven .cse3 .cse3))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse5) .cse6)) (.cse1 (fp.mul roundNearestTiesToEven .cse5 .cse6)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.gt .cse0 .cse1)) (not (fp.leq main_~dd~0 .cse2)) (= (fp.div roundNearestTiesToEven .cse2 .cse3) c_main_~r~0) (fp.leq main_~dd~0 (fp.add roundNearestTiesToEven .cse2 .cse4)) (not (fp.lt .cse0 (fp.neg .cse1))) (fp.geq main_~dd~0 (fp.sub roundNearestTiesToEven .cse2 .cse4)))))))) is different from true [2018-11-28 11:17:00,752 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-28 11:17:00,953 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-11-28 11:17:00,954 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:823) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:767) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:339) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2018-11-28 11:17:00,956 INFO L168 Benchmark]: Toolchain (without parser) took 109495.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -119.4 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2018-11-28 11:17:00,957 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:17:00,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:17:00,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.26 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:17:00,958 INFO L168 Benchmark]: Boogie Preprocessor took 22.82 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:17:00,959 INFO L168 Benchmark]: RCFGBuilder took 9723.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -203.5 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:17:00,959 INFO L168 Benchmark]: TraceAbstraction took 99532.88 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: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:17:00,961 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.26 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.82 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 9723.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -203.5 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 99532.88 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: 67.9 MB). Peak memory consumption was 67.9 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...