./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f1bd2a42710b6c2eba96cb622bd79ffd05436a ................................................................................................................................................................................................................................................................... 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_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f1bd2a42710b6c2eba96cb622bd79ffd05436a .......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:02:52,494 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:02:52,496 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:02:52,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:02:52,504 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:02:52,505 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:02:52,505 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:02:52,506 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:02:52,507 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:02:52,508 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:02:52,509 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:02:52,509 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:02:52,510 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:02:52,510 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:02:52,511 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:02:52,511 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:02:52,512 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:02:52,513 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:02:52,515 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:02:52,516 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:02:52,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:02:52,517 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:02:52,520 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:02:52,520 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:02:52,520 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:02:52,521 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:02:52,522 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:02:52,522 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:02:52,523 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:02:52,523 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:02:52,524 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:02:52,524 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:02:52,524 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:02:52,524 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:02:52,525 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:02:52,525 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:02:52,525 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:02:52,537 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:02:52,537 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:02:52,538 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:02:52,538 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:02:52,538 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:02:52,538 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:02:52,538 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:02:52,539 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:02:52,539 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:02:52,539 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:02:52,539 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:02:52,539 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:02:52,539 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:02:52,539 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:02:52,540 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:02:52,540 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:02:52,540 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:02:52,540 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:02:52,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:02:52,540 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:02:52,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:02:52,541 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:02:52,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:02:52,541 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:02:52,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:02:52,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:02:52,541 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:02:52,541 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:02:52,541 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:02:52,541 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:02:52,541 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:02:52,542 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:02:52,542 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:02:52,542 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:02:52,542 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:02:52,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:02:52,544 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:02:52,544 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan 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 -> Taipan 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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-11-18 10:02:52,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:02:52,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:02:52,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:02:52,582 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:02:52,582 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:02:52,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 10:02:52,627 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data/27931adc1/4c74a733ed514c1ca8083d2dd5f76e2e/FLAGab0408d55 [2018-11-18 10:02:53,041 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:02:53,041 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 10:02:53,045 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data/27931adc1/4c74a733ed514c1ca8083d2dd5f76e2e/FLAGab0408d55 [2018-11-18 10:02:53,055 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data/27931adc1/4c74a733ed514c1ca8083d2dd5f76e2e [2018-11-18 10:02:53,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:02:53,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:02:53,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:02:53,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:02:53,062 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:02:53,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e3deec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53, skipping insertion in model container [2018-11-18 10:02:53,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:02:53,086 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:02:53,188 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:02:53,190 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:02:53,201 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:02:53,218 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:02:53,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53 WrapperNode [2018-11-18 10:02:53,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:02:53,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:02:53,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:02:53,219 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:02:53,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:02:53,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:02:53,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:02:53,234 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:02:53,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... [2018-11-18 10:02:53,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:02:53,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:02:53,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:02:53,287 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:02:53,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/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 [2018-11-18 10:02:53,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:02:53,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:02:53,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 10:02:53,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:02:53,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:02:53,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:02:53,324 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-11-18 10:02:53,324 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-11-18 10:02:53,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 10:02:53,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:02:53,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:02:53,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:02:53,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:02:53,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:02:53,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:02:53,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:02:53,436 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:02:53,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:53 BoogieIcfgContainer [2018-11-18 10:02:53,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:02:53,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:02:53,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:02:53,439 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:02:53,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:02:53" (1/3) ... [2018-11-18 10:02:53,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8a8919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:02:53, skipping insertion in model container [2018-11-18 10:02:53,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:53" (2/3) ... [2018-11-18 10:02:53,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8a8919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:02:53, skipping insertion in model container [2018-11-18 10:02:53,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:53" (3/3) ... [2018-11-18 10:02:53,441 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 10:02:53,449 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:02:53,455 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:02:53,468 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:02:53,487 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:02:53,487 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:02:53,487 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:02:53,487 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:02:53,487 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:02:53,487 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:02:53,487 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:02:53,487 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:02:53,498 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 10:02:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:02:53,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:02:53,501 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:02:53,503 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:02:53,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:02:53,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1573477556, now seen corresponding path program 1 times [2018-11-18 10:02:53,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:02:53,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:53,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:02:53,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:02:53,545 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:02:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:02:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:02:53,601 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:02:53,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:02:53 BoogieIcfgContainer [2018-11-18 10:02:53,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:02:53,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:02:53,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:02:53,625 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:02:53,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:53" (3/4) ... [2018-11-18 10:02:53,628 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:02:53,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:02:53,629 INFO L168 Benchmark]: Toolchain (without parser) took 571.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:02:53,630 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:02:53,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.64 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:53,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.15 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:53,632 INFO L168 Benchmark]: Boogie Preprocessor took 52.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:53,633 INFO L168 Benchmark]: RCFGBuilder took 149.96 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:53,633 INFO L168 Benchmark]: TraceAbstraction took 187.32 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:02:53,634 INFO L168 Benchmark]: Witness Printer took 4.01 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. [2018-11-18 10:02:53,636 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.64 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 15.15 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 149.96 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 187.32 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.01 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 17. Possible FailurePath: [L40] float a,r; [L42] a = __VERIFIER_nondet_float() [L45] CALL, EXPR InvSqrt(a) VAL [\old(x)=8] [L17] float xhalf = 0.5f*x; [L18] FCALL union float_int i; [L19] FCALL i.f = x [L20] EXPR, FCALL i.i [L20] FCALL i.i = 0x5f3759df - (i.i>>1) [L21] EXPR, FCALL i.f [L21] x = i.f [L22] x = x*(1.5f-xhalf*x*x) [L23] return x; [L23] RET return x; VAL [\old(x)=8, \result=9, x=9] [L45] EXPR InvSqrt(a) VAL [a=8, InvSqrt(a)=9] [L45] r = InvSqrt(a) [L47] CALL __VERIFIER_assert(r >= 0.f && r <= 10.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 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=23occurred 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, 15 NumberOfCodeBlocks, 15 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 0.1.23-5842f4b [2018-11-18 10:02:55,117 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:02:55,118 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:02:55,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:02:55,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:02:55,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:02:55,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:02:55,130 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:02:55,131 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:02:55,132 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:02:55,132 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:02:55,133 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:02:55,133 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:02:55,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:02:55,135 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:02:55,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:02:55,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:02:55,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:02:55,138 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:02:55,140 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:02:55,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:02:55,141 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:02:55,143 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:02:55,143 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:02:55,143 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:02:55,144 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:02:55,145 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:02:55,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:02:55,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:02:55,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:02:55,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:02:55,147 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:02:55,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:02:55,147 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:02:55,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:02:55,148 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:02:55,149 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 10:02:55,159 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:02:55,160 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:02:55,160 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:02:55,160 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:02:55,161 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:02:55,161 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:02:55,161 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:02:55,161 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:02:55,161 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:02:55,161 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:02:55,162 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:02:55,162 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:02:55,162 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:02:55,162 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:02:55,162 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:02:55,162 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:02:55,163 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:02:55,163 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:02:55,163 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:02:55,163 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:02:55,163 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:02:55,163 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:02:55,163 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:02:55,164 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:02:55,164 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:02:55,164 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:02:55,164 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:02:55,164 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:02:55,164 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:02:55,164 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:02:55,164 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:02:55,165 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 10:02:55,165 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:02:55,165 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:02:55,165 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:02:55,165 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_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan 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 -> Taipan 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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-11-18 10:02:55,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:02:55,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:02:55,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:02:55,210 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:02:55,211 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:02:55,211 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 10:02:55,257 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data/afadf7725/3cd0fca24eb9470c992601a360eb0b75/FLAG69b3916a6 [2018-11-18 10:02:55,586 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:02:55,586 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 10:02:55,590 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data/afadf7725/3cd0fca24eb9470c992601a360eb0b75/FLAG69b3916a6 [2018-11-18 10:02:55,600 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/data/afadf7725/3cd0fca24eb9470c992601a360eb0b75 [2018-11-18 10:02:55,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:02:55,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:02:55,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:02:55,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:02:55,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:02:55,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d86102c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55, skipping insertion in model container [2018-11-18 10:02:55,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:02:55,630 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:02:55,758 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:02:55,761 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:02:55,775 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:02:55,791 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:02:55,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55 WrapperNode [2018-11-18 10:02:55,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:02:55,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:02:55,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:02:55,792 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:02:55,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:02:55,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:02:55,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:02:55,811 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:02:55,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... [2018-11-18 10:02:55,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:02:55,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:02:55,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:02:55,833 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:02:55,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/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 [2018-11-18 10:02:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:02:55,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:02:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 10:02:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:02:55,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:02:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-11-18 10:02:55,912 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-11-18 10:02:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:02:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:02:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:02:55,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:02:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 10:02:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:02:55,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:02:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:02:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:02:56,612 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:02:56,633 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:02:56,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:56 BoogieIcfgContainer [2018-11-18 10:02:56,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:02:56,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:02:56,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:02:56,636 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:02:56,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:02:55" (1/3) ... [2018-11-18 10:02:56,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef7faa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:02:56, skipping insertion in model container [2018-11-18 10:02:56,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:02:55" (2/3) ... [2018-11-18 10:02:56,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef7faa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:02:56, skipping insertion in model container [2018-11-18 10:02:56,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:56" (3/3) ... [2018-11-18 10:02:56,638 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-11-18 10:02:56,647 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:02:56,653 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:02:56,662 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:02:56,680 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:02:56,680 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:02:56,680 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:02:56,680 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:02:56,680 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:02:56,680 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:02:56,681 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:02:56,681 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:02:56,681 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:02:56,690 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 10:02:56,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:02:56,694 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:02:56,695 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:02:56,696 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:02:56,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:02:56,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1573477556, now seen corresponding path program 1 times [2018-11-18 10:02:56,702 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:02:56,703 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/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 [2018-11-18 10:02:56,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:02:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:02:57,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:03:05,082 WARN L180 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 30 [2018-11-18 10:03:07,114 WARN L832 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (= |c_main_#t~ret4| (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) is different from false [2018-11-18 10:03:09,144 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (= |c_main_#t~ret4| (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0))))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) is different from true [2018-11-18 10:03:11,178 WARN L832 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= c_main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) is different from false [2018-11-18 10:03:13,210 WARN L854 $PredicateComparison]: unable to prove that (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= c_main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) is different from true [2018-11-18 10:03:29,538 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse7 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_3) ((_ extract 30 23) v_prenex_3) ((_ extract 22 0) v_prenex_3)))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr v_prenex_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse2) .cse2)))))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse1 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) (and (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse5) .cse5)))) (_ +zero 8 24))) (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) .cse7) (and (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (fp.leq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse8) .cse9) .cse9))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) .cse7))) is different from false [2018-11-18 10:03:43,859 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse2) .cse2)))) (_ +zero 8 24))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)))))) (and .cse0 (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse5) .cse5))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) (and (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_3 (_ BitVec 32))) (let ((.cse7 (fp ((_ extract 31 31) v_prenex_3) ((_ extract 30 23) v_prenex_3) ((_ extract 22 0) v_prenex_3)))) (let ((.cse8 (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr v_prenex_3 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse7) .cse9) .cse9)))))) (and (fp.geq .cse7 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse7 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse8 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse8) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))))) is different from false [2018-11-18 10:03:54,086 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (fp.leq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) is different from false [2018-11-18 10:03:56,120 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (fp.leq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))))) is different from true [2018-11-18 10:03:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:03:56,125 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:03:56,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:03:56,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 10:03:56,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:03:56,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:03:56,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=8, Unknown=9, NotChecked=40, Total=72 [2018-11-18 10:03:56,152 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 9 states. [2018-11-18 10:04:00,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:04:00,347 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-11-18 10:04:00,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:04:00,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-11-18 10:04:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:04:00,386 INFO L225 Difference]: With dead ends: 30 [2018-11-18 10:04:00,386 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:04:00,388 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=15, Invalid=8, Unknown=9, NotChecked=40, Total=72 [2018-11-18 10:04:00,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:04:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:04:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:04:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:04:00,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-18 10:04:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:04:00,404 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:04:00,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:04:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:04:00,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:04:00,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:04:25,458 WARN L180 SmtUtils]: Spent 25.00 s on a formula simplification. DAG size of input: 115 DAG size of output: 1 [2018-11-18 10:04:29,531 WARN L180 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 34 [2018-11-18 10:04:29,532 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:04:29,533 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:04:29,533 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:04:29,533 INFO L428 ceAbstractionStarter]: At program point InvSqrtENTRY(lines 15 24) the Hoare annotation is: true [2018-11-18 10:04:29,533 INFO L425 ceAbstractionStarter]: For program point InvSqrtFINAL(lines 15 24) no Hoare annotation was computed. [2018-11-18 10:04:29,533 INFO L425 ceAbstractionStarter]: For program point InvSqrtEXIT(lines 15 24) no Hoare annotation was computed. [2018-11-18 10:04:29,533 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:04:29,533 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:04:29,533 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:04:29,533 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:04:29,533 INFO L421 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: (exists ((|v_q#valueAsBitvector_2| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_q#valueAsBitvector_2|) ((_ extract 30 23) |v_q#valueAsBitvector_2|) ((_ extract 22 0) |v_q#valueAsBitvector_2|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (= main_~r~0 (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_q#valueAsBitvector_2| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.leq .cse0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) [2018-11-18 10:04:29,534 INFO L425 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-11-18 10:04:29,534 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 38 49) the Hoare annotation is: true [2018-11-18 10:04:29,534 INFO L421 ceAbstractionStarter]: At program point L45(line 45) the Hoare annotation is: (and (fp.geq main_~a~0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq main_~a~0 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))) [2018-11-18 10:04:29,534 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 38 49) no Hoare annotation was computed. [2018-11-18 10:04:29,534 INFO L425 ceAbstractionStarter]: For program point L45-1(line 45) no Hoare annotation was computed. [2018-11-18 10:04:29,534 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 38 49) no Hoare annotation was computed. [2018-11-18 10:04:29,534 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-11-18 10:04:29,534 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-18 10:04:29,534 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-11-18 10:04:29,534 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-18 10:04:29,535 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-18 10:04:29,535 INFO L425 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-11-18 10:04:29,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:04:29 BoogieIcfgContainer [2018-11-18 10:04:29,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:04:29,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:04:29,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:04:29,538 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:04:29,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:02:56" (3/4) ... [2018-11-18 10:04:29,540 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:04:29,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:04:29,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure InvSqrt [2018-11-18 10:04:29,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:04:29,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 10:04:29,549 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-18 10:04:29,550 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 10:04:29,550 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:04:29,550 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:04:29,575 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ff7cdc28-4218-444c-8393-57bc71c988ef/bin-2019/utaipan/witness.graphml [2018-11-18 10:04:29,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:04:29,575 INFO L168 Benchmark]: Toolchain (without parser) took 93973.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -110.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:04:29,576 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:04:29,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.57 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:04:29,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.28 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:04:29,577 INFO L168 Benchmark]: Boogie Preprocessor took 21.66 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:04:29,577 INFO L168 Benchmark]: RCFGBuilder took 800.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:04:29,577 INFO L168 Benchmark]: TraceAbstraction took 92903.56 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: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:04:29,578 INFO L168 Benchmark]: Witness Printer took 37.45 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. [2018-11-18 10:04:29,579 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.57 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.28 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.66 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 800.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 92903.56 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: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 11.5 GB. * Witness Printer took 37.45 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: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. SAFE Result, 92.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 4.2s AutomataDifference, 0.0s DeadEndRemovalTime, 29.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 50 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 132 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 930 FormulaSimplificationTreeSizeReductionInter, 29.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 58.7s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 7 QuantifiedInterpolants, 22372 SizeOfPredicates, 5 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...