./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/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 b63905375af38d9971341930078b6c47230c38fd ........................................................................................................................................................................................................................................................................................ 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_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/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 b63905375af38d9971341930078b6c47230c38fd ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 02:21:03,359 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 02:21:03,360 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 02:21:03,366 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 02:21:03,366 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 02:21:03,367 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 02:21:03,368 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 02:21:03,368 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 02:21:03,369 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 02:21:03,370 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 02:21:03,370 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 02:21:03,370 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 02:21:03,371 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 02:21:03,371 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 02:21:03,372 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 02:21:03,372 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 02:21:03,372 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 02:21:03,373 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 02:21:03,374 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 02:21:03,375 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 02:21:03,375 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 02:21:03,376 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 02:21:03,377 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 02:21:03,377 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 02:21:03,377 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 02:21:03,378 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 02:21:03,378 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 02:21:03,379 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 02:21:03,379 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 02:21:03,380 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 02:21:03,380 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 02:21:03,380 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 02:21:03,380 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 02:21:03,380 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 02:21:03,381 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 02:21:03,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 02:21:03,381 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 02:21:03,388 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 02:21:03,389 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 02:21:03,389 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 02:21:03,389 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 02:21:03,389 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 02:21:03,389 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 02:21:03,389 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 02:21:03,389 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 02:21:03,390 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 02:21:03,390 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 02:21:03,390 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 02:21:03,390 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 02:21:03,390 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 02:21:03,390 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 02:21:03,390 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 02:21:03,390 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 02:21:03,390 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 02:21:03,391 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 02:21:03,391 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 02:21:03,392 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:21:03,392 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 02:21:03,392 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 02:21:03,392 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 02:21:03,392 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 02:21:03,392 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 02:21:03,392 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 02:21:03,392 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 02:21:03,392 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_f848d8a1-2377-483c-8920-cc80d33f4a3b/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 -> b63905375af38d9971341930078b6c47230c38fd [2018-12-09 02:21:03,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 02:21:03,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 02:21:03,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 02:21:03,422 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 02:21:03,422 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 02:21:03,423 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-09 02:21:03,462 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data/720e899f2/2e3c4f0098ab42279cf6dc09bdfc6573/FLAGaeb01d524 [2018-12-09 02:21:03,852 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 02:21:03,853 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-09 02:21:03,856 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data/720e899f2/2e3c4f0098ab42279cf6dc09bdfc6573/FLAGaeb01d524 [2018-12-09 02:21:03,864 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data/720e899f2/2e3c4f0098ab42279cf6dc09bdfc6573 [2018-12-09 02:21:03,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 02:21:03,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 02:21:03,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 02:21:03,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 02:21:03,869 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 02:21:03,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:21:03" (1/1) ... [2018-12-09 02:21:03,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed1acf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:03, skipping insertion in model container [2018-12-09 02:21:03,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:21:03" (1/1) ... [2018-12-09 02:21:03,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 02:21:03,885 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 02:21:03,977 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:21:03,980 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 02:21:03,994 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:21:04,005 INFO L195 MainTranslator]: Completed translation [2018-12-09 02:21:04,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04 WrapperNode [2018-12-09 02:21:04,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 02:21:04,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 02:21:04,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 02:21:04,006 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 02:21:04,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 02:21:04,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 02:21:04,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 02:21:04,021 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 02:21:04,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... [2018-12-09 02:21:04,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 02:21:04,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 02:21:04,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 02:21:04,065 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 02:21:04,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/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 [2018-12-09 02:21:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 02:21:04,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 02:21:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 02:21:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 02:21:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 02:21:04,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 02:21:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 02:21:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 02:21:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 02:21:04,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 02:21:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 02:21:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 02:21:04,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 02:21:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 02:21:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-12-09 02:21:04,097 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-12-09 02:21:04,223 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 02:21:04,223 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 02:21:04,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:21:04 BoogieIcfgContainer [2018-12-09 02:21:04,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 02:21:04,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 02:21:04,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 02:21:04,226 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 02:21:04,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:21:03" (1/3) ... [2018-12-09 02:21:04,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277fbb0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:21:04, skipping insertion in model container [2018-12-09 02:21:04,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:04" (2/3) ... [2018-12-09 02:21:04,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277fbb0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:21:04, skipping insertion in model container [2018-12-09 02:21:04,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:21:04" (3/3) ... [2018-12-09 02:21:04,229 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-12-09 02:21:04,238 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 02:21:04,243 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 02:21:04,257 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 02:21:04,284 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 02:21:04,285 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 02:21:04,285 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 02:21:04,285 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 02:21:04,285 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 02:21:04,285 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 02:21:04,285 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 02:21:04,285 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 02:21:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-09 02:21:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 02:21:04,304 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:21:04,305 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:21:04,306 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:21:04,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:21:04,310 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-12-09 02:21:04,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 02:21:04,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:21:04,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:21:04,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:21:04,339 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 02:21:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:21:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:21:04,423 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 02:21:04,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:21:04 BoogieIcfgContainer [2018-12-09 02:21:04,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 02:21:04,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 02:21:04,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 02:21:04,443 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 02:21:04,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:21:04" (3/4) ... [2018-12-09 02:21:04,445 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 02:21:04,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 02:21:04,446 INFO L168 Benchmark]: Toolchain (without parser) took 579.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 958.8 MB in the beginning and 1.1 GB in the end (delta: -126.3 MB). Peak memory consumption was 86.2 kB. Max. memory is 11.5 GB. [2018-12-09 02:21:04,447 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-09 02:21:04,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.77 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 948.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:04,447 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.59 ms. Allocated memory is still 1.0 GB. Free memory was 948.1 MB in the beginning and 942.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:04,448 INFO L168 Benchmark]: Boogie Preprocessor took 43.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 942.7 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:04,448 INFO L168 Benchmark]: RCFGBuilder took 158.33 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:04,448 INFO L168 Benchmark]: TraceAbstraction took 218.52 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:04,449 INFO L168 Benchmark]: Witness Printer took 2.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:21:04,450 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 138.77 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 948.1 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 14.59 ms. Allocated memory is still 1.0 GB. Free memory was 948.1 MB in the beginning and 942.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 942.7 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 158.33 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 218.52 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.85 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 33, overapproximation of someUnaryDOUBLEoperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 60. Possible FailurePath: [L12] double C0 = 1.414213538; [L13] double C1 = 0.229761391; [L14] double C2 = 1.296735525; [L15] double C3 = -0.901098370; [L16] double C4 = 0.493553400; [L17] double C5 = -0.118958666; VAL [\old(C0)=13, \old(C1)=28, \old(C2)=16, \old(C3)=31, \old(C4)=15, \old(C5)=25, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [L58] CALL, EXPR sqrt_custom(x) VAL [\old(a)=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L26] union u x; [L27] double r; [L28] int exp; [L30] x.d = a [L32] EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR x.i[0] [L33] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] EXPR x.d [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=12, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={24:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=12, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={24:0}] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [\old(a)=12, \result=27, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, r=27] [L58] RET, EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=27, x=12] [L58] y = sqrt_custom(x) [L60] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 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=25occurred 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, 17 NumberOfCodeBlocks, 17 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 0.1.23-635dfa2 [2018-12-09 02:21:05,752 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 02:21:05,753 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 02:21:05,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 02:21:05,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 02:21:05,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 02:21:05,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 02:21:05,763 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 02:21:05,764 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 02:21:05,764 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 02:21:05,765 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 02:21:05,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 02:21:05,765 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 02:21:05,766 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 02:21:05,766 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 02:21:05,767 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 02:21:05,767 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 02:21:05,768 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 02:21:05,769 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 02:21:05,770 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 02:21:05,771 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 02:21:05,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 02:21:05,773 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 02:21:05,773 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 02:21:05,773 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 02:21:05,773 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 02:21:05,774 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 02:21:05,774 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 02:21:05,775 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 02:21:05,776 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 02:21:05,776 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 02:21:05,776 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 02:21:05,776 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 02:21:05,777 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 02:21:05,777 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 02:21:05,778 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 02:21:05,778 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 02:21:05,788 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 02:21:05,788 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 02:21:05,788 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 02:21:05,789 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 02:21:05,789 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 02:21:05,789 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 02:21:05,789 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 02:21:05,789 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 02:21:05,789 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 02:21:05,790 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 02:21:05,790 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 02:21:05,790 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 02:21:05,790 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 02:21:05,791 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 02:21:05,791 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 02:21:05,791 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 02:21:05,791 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 02:21:05,791 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 02:21:05,791 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 02:21:05,791 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 02:21:05,792 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 02:21:05,792 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 02:21:05,792 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 02:21:05,792 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 02:21:05,792 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 02:21:05,792 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 02:21:05,793 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 02:21:05,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:21:05,793 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 02:21:05,793 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 02:21:05,793 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 02:21:05,793 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 02:21:05,793 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 02:21:05,794 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 02:21:05,794 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 02:21:05,794 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_f848d8a1-2377-483c-8920-cc80d33f4a3b/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 -> b63905375af38d9971341930078b6c47230c38fd [2018-12-09 02:21:05,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 02:21:05,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 02:21:05,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 02:21:05,828 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 02:21:05,828 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 02:21:05,829 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-09 02:21:05,865 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data/c129478b1/a7d52f2e41b942229bc7b0616037d125/FLAGad896144c [2018-12-09 02:21:06,179 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 02:21:06,179 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-12-09 02:21:06,184 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data/c129478b1/a7d52f2e41b942229bc7b0616037d125/FLAGad896144c [2018-12-09 02:21:06,598 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/data/c129478b1/a7d52f2e41b942229bc7b0616037d125 [2018-12-09 02:21:06,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 02:21:06,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 02:21:06,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 02:21:06,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 02:21:06,606 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 02:21:06,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c435b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06, skipping insertion in model container [2018-12-09 02:21:06,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 02:21:06,623 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 02:21:06,719 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:21:06,723 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 02:21:06,741 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:21:06,757 INFO L195 MainTranslator]: Completed translation [2018-12-09 02:21:06,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06 WrapperNode [2018-12-09 02:21:06,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 02:21:06,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 02:21:06,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 02:21:06,758 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 02:21:06,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 02:21:06,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 02:21:06,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 02:21:06,774 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 02:21:06,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... [2018-12-09 02:21:06,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 02:21:06,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 02:21:06,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 02:21:06,824 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 02:21:06,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/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 [2018-12-09 02:21:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 02:21:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 02:21:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 02:21:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 02:21:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 02:21:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 02:21:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-12-09 02:21:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-12-09 02:21:09,079 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:21:09,712 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 02:21:09,712 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 02:21:09,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:21:09 BoogieIcfgContainer [2018-12-09 02:21:09,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 02:21:09,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 02:21:09,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 02:21:09,715 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 02:21:09,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:21:06" (1/3) ... [2018-12-09 02:21:09,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fea8a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:21:09, skipping insertion in model container [2018-12-09 02:21:09,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:21:06" (2/3) ... [2018-12-09 02:21:09,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fea8a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:21:09, skipping insertion in model container [2018-12-09 02:21:09,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:21:09" (3/3) ... [2018-12-09 02:21:09,717 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-12-09 02:21:09,722 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 02:21:09,727 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 02:21:09,736 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 02:21:09,753 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 02:21:09,754 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 02:21:09,754 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 02:21:09,754 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 02:21:09,754 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 02:21:09,754 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 02:21:09,754 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 02:21:09,755 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 02:21:09,755 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 02:21:09,763 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-09 02:21:09,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 02:21:09,767 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:21:09,767 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:21:09,768 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:21:09,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:21:09,772 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-12-09 02:21:09,774 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 02:21:09,774 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/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 [2018-12-09 02:21:09,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:21:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:21:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:21:12,636 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 02:21:12,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:21:12 BoogieIcfgContainer [2018-12-09 02:21:12,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 02:21:12,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 02:21:12,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 02:21:12,668 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 02:21:12,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:21:09" (3/4) ... [2018-12-09 02:21:12,669 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 02:21:12,703 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f848d8a1-2377-483c-8920-cc80d33f4a3b/bin-2019/utaipan/witness.graphml [2018-12-09 02:21:12,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 02:21:12,704 INFO L168 Benchmark]: Toolchain (without parser) took 6101.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:12,704 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-09 02:21:12,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.52 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:12,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.51 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. [2018-12-09 02:21:12,705 INFO L168 Benchmark]: Boogie Preprocessor took 50.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:12,705 INFO L168 Benchmark]: RCFGBuilder took 2888.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:12,706 INFO L168 Benchmark]: TraceAbstraction took 2954.35 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:21:12,706 INFO L168 Benchmark]: Witness Printer took 35.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:21:12,707 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 154.52 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 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 15.51 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. * Boogie Preprocessor took 50.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2888.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2954.35 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * Witness Printer took 35.90 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: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] double C0 = 1.414213538; [L13] double C1 = 0.229761391; [L14] double C2 = 1.296735525; [L15] double C3 = -0.901098370; [L16] double C4 = 0.493553400; [L17] double C5 = -0.118958666; VAL [\old(C0)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030, \old(C1)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, \old(C2)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000015, \old(C3)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, \old(C4)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, \old(C5)=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [L58] CALL, EXPR sqrt_custom(x) VAL [\old(a)=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L26] union u x; [L27] double r; [L28] int exp; [L30] x.d = a [L32] EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR x.i[0] [L33] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] EXPR x.d [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=9731564545.6875, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=-13704217330150313000000000000, x={2:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=9731564545.6875, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-13704217330150313000000000000, x={2:0}] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [\old(a)=9731564545.6875, \result=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011] [L58] RET, EXPR sqrt_custom(x) VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, sqrt_custom(x)=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011, x=9731564545.6875] [L58] y = sqrt_custom(x) [L60] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 2.9s 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=25occurred 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, 1.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 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 proved your program to be incorrect! Received shutdown request...