./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 0.1.23-1dbac8b [2018-11-10 09:55:11,893 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:55:11,894 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:55:11,900 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:55:11,900 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:55:11,901 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:55:11,902 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:55:11,903 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:55:11,904 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:55:11,904 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:55:11,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:55:11,905 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:55:11,906 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:55:11,906 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:55:11,907 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:55:11,908 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:55:11,908 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:55:11,910 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:55:11,911 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:55:11,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:55:11,913 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:55:11,914 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:55:11,915 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:55:11,916 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:55:11,916 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:55:11,917 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:55:11,917 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:55:11,918 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:55:11,918 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:55:11,919 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:55:11,919 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:55:11,920 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:55:11,920 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:55:11,920 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:55:11,921 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:55:11,921 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:55:11,921 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 09:55:11,928 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:55:11,928 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:55:11,929 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:55:11,929 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 09:55:11,929 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 09:55:11,929 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 09:55:11,930 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 09:55:11,930 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:55:11,930 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 09:55:11,930 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 09:55:11,930 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 09:55:11,930 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:55:11,930 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:55:11,930 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:55:11,931 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:55:11,931 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 09:55:11,931 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:55:11,931 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:55:11,931 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:55:11,931 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:55:11,931 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:55:11,932 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:55:11,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:55:11,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:55:11,932 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:55:11,932 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:55:11,932 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 09:55:11,932 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:55:11,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 09:55:11,933 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_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63905375af38d9971341930078b6c47230c38fd [2018-11-10 09:55:11,958 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:55:11,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:55:11,968 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:55:11,969 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:55:11,969 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:55:11,970 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-10 09:55:12,006 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data/eaf413d38/021a070be6cb48438939ac262fd2ecb6/FLAG8ddb2bd44 [2018-11-10 09:55:12,427 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:55:12,428 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-10 09:55:12,433 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data/eaf413d38/021a070be6cb48438939ac262fd2ecb6/FLAG8ddb2bd44 [2018-11-10 09:55:12,443 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data/eaf413d38/021a070be6cb48438939ac262fd2ecb6 [2018-11-10 09:55:12,446 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:55:12,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 09:55:12,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:55:12,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:55:12,449 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:55:12,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205d61ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12, skipping insertion in model container [2018-11-10 09:55:12,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:55:12,472 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:55:12,585 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:55:12,588 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:55:12,606 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:55:12,620 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:55:12,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12 WrapperNode [2018-11-10 09:55:12,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:55:12,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:55:12,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:55:12,621 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:55:12,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (1/1) ... [2018-11-10 09:55:12,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:55:12,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:55:12,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:55:12,644 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:55:12,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:55:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:55:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:55:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 09:55:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-11-10 09:55:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 09:55:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 09:55:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-10 09:55:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 09:55:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:55:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:55:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:55:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 09:55:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-10 09:55:12,893 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:55:12,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:55:12 BoogieIcfgContainer [2018-11-10 09:55:12,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:55:12,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:55:12,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:55:12,897 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:55:12,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:55:12" (1/3) ... [2018-11-10 09:55:12,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd16d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:55:12, skipping insertion in model container [2018-11-10 09:55:12,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:12" (2/3) ... [2018-11-10 09:55:12,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd16d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:55:12, skipping insertion in model container [2018-11-10 09:55:12,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:55:12" (3/3) ... [2018-11-10 09:55:12,899 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-11-10 09:55:12,907 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:55:12,913 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 09:55:12,927 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 09:55:12,946 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 09:55:12,947 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:55:12,947 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 09:55:12,947 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:55:12,947 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:55:12,947 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:55:12,947 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:55:12,947 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:55:12,947 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:55:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-10 09:55:12,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 09:55:12,962 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:55:12,962 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:55:12,964 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:55:12,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:55:12,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1706602143, now seen corresponding path program 1 times [2018-11-10 09:55:12,969 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 09:55:12,969 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 09:55:12,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:55:12,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:55:12,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:55:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:55:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:55:13,136 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 09:55:13,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:55:13 BoogieIcfgContainer [2018-11-10 09:55:13,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:55:13,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:55:13,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:55:13,169 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:55:13,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:55:12" (3/4) ... [2018-11-10 09:55:13,172 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 09:55:13,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:55:13,173 INFO L168 Benchmark]: Toolchain (without parser) took 726.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -126.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:13,174 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 09:55:13,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.95 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:13,175 INFO L168 Benchmark]: Boogie Preprocessor took 22.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:13,175 INFO L168 Benchmark]: RCFGBuilder took 250.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:13,176 INFO L168 Benchmark]: TraceAbstraction took 274.21 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:13,176 INFO L168 Benchmark]: Witness Printer took 3.56 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. [2018-11-10 09:55:13,179 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.95 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 250.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 274.21 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.56 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 bitwiseAnd at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 56. 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)=534773765, \old(C1)=534773776, \old(C2)=534773770, \old(C3)=534773777, \old(C4)=534773767, \old(C5)=534773772, 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)=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L26] FCALL union u x; VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={534773774:0}] [L27] double r; [L28] int exp; VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={534773774:0}] [L30] FCALL x.d = a VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={534773774:0}] [L32] EXPR, FCALL x.i[0] VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, x={534773774:0}, x.i[0]=534773771] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR, FCALL x.i[0] VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.i[0]=534773771] [L33] FCALL x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.i[0]=534773771] [L34] EXPR, FCALL x.d VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}, x.d=534773762] [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={534773774:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={534773774:0}] [L45] FCALL x.i[0] = (exp/2 + 511) << 20 VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={534773774:0}] [L46] EXPR, FCALL x.d VAL [\old(a)=534773764, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={534773774:0}, x.d=534773762] [L46] r = r * x.d [L48] return r; VAL [\old(a)=534773764, \result=534773773, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, r=534773773, x={534773774:0}] [L48] RET return r; VAL [\old(a)=534773764, \result=534773773, a=534773764, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, r=534773773] [L58] EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=534773773, x=534773764] [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, 47 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 39 NumberOfCodeBlocks, 39 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 0.1.23-1dbac8b [2018-11-10 09:55:14,605 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:55:14,606 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:55:14,615 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:55:14,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:55:14,616 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:55:14,616 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:55:14,618 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:55:14,619 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:55:14,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:55:14,620 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:55:14,620 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:55:14,621 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:55:14,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:55:14,622 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:55:14,623 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:55:14,623 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:55:14,624 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:55:14,626 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:55:14,627 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:55:14,627 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:55:14,628 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:55:14,630 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:55:14,630 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:55:14,630 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:55:14,631 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:55:14,632 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:55:14,632 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:55:14,633 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:55:14,633 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:55:14,634 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:55:14,634 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:55:14,634 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:55:14,634 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:55:14,635 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:55:14,636 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:55:14,636 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 09:55:14,646 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:55:14,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:55:14,647 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:55:14,647 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 09:55:14,647 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 09:55:14,647 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 09:55:14,647 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 09:55:14,648 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:55:14,648 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 09:55:14,648 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 09:55:14,648 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:55:14,648 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:55:14,648 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:55:14,648 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:55:14,649 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 09:55:14,649 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 09:55:14,649 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 09:55:14,649 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:55:14,649 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:55:14,649 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:55:14,649 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:55:14,649 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:55:14,649 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:55:14,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:55:14,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:55:14,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:55:14,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:55:14,650 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 09:55:14,650 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:55:14,650 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 09:55:14,650 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 09:55:14,651 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_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63905375af38d9971341930078b6c47230c38fd [2018-11-10 09:55:14,681 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:55:14,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:55:14,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:55:14,694 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:55:14,695 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:55:14,695 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-10 09:55:14,736 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data/df6014623/d73570f3ed4b4783a9e54cb53ccf2fd3/FLAGa3eaac88f [2018-11-10 09:55:15,074 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:55:15,075 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/sv-benchmarks/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-10 09:55:15,079 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data/df6014623/d73570f3ed4b4783a9e54cb53ccf2fd3/FLAGa3eaac88f [2018-11-10 09:55:15,088 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/data/df6014623/d73570f3ed4b4783a9e54cb53ccf2fd3 [2018-11-10 09:55:15,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:55:15,091 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 09:55:15,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:55:15,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:55:15,095 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:55:15,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405a00e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15, skipping insertion in model container [2018-11-10 09:55:15,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:55:15,116 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:55:15,232 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:55:15,237 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:55:15,262 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:55:15,281 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:55:15,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15 WrapperNode [2018-11-10 09:55:15,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:55:15,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:55:15,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:55:15,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:55:15,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (1/1) ... [2018-11-10 09:55:15,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:55:15,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:55:15,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:55:15,315 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:55:15,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:55:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:55:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:55:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 09:55:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-11-10 09:55:15,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:55:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 09:55:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-10 09:55:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 09:55:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 09:55:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-11-10 09:55:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 09:55:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-10 09:55:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-10 09:55:15,554 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:55:15,564 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 09:55:18,551 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:55:18,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:55:18 BoogieIcfgContainer [2018-11-10 09:55:18,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:55:18,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:55:18,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:55:18,554 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:55:18,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:55:15" (1/3) ... [2018-11-10 09:55:18,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb2fff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:55:18, skipping insertion in model container [2018-11-10 09:55:18,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:55:15" (2/3) ... [2018-11-10 09:55:18,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb2fff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:55:18, skipping insertion in model container [2018-11-10 09:55:18,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:55:18" (3/3) ... [2018-11-10 09:55:18,557 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-11-10 09:55:18,563 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:55:18,567 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 09:55:18,576 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 09:55:18,595 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 09:55:18,596 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:55:18,596 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 09:55:18,596 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:55:18,596 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:55:18,597 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:55:18,597 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:55:18,597 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:55:18,597 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:55:18,606 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-10 09:55:18,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 09:55:18,611 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:55:18,612 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:55:18,614 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:55:18,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:55:18,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1706602143, now seen corresponding path program 1 times [2018-11-10 09:55:18,620 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 09:55:18,620 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 09:55:18,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:55:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:55:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 09:55:21,543 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 09:55:21,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:55:21 BoogieIcfgContainer [2018-11-10 09:55:21,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:55:21,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:55:21,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:55:21,599 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:55:21,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:55:18" (3/4) ... [2018-11-10 09:55:21,601 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 09:55:21,658 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3db3e8dd-8908-48ec-aaec-7464af01892d/bin-2019/uautomizer/witness.graphml [2018-11-10 09:55:21,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:55:21,658 INFO L168 Benchmark]: Toolchain (without parser) took 6567.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -120.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:21,660 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. [2018-11-10 09:55:21,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.61 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. [2018-11-10 09:55:21,660 INFO L168 Benchmark]: Boogie Preprocessor took 31.96 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. [2018-11-10 09:55:21,660 INFO L168 Benchmark]: RCFGBuilder took 3237.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:21,661 INFO L168 Benchmark]: TraceAbstraction took 3045.55 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: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:21,661 INFO L168 Benchmark]: Witness Printer took 59.81 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 09:55:21,662 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 189.61 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 Preprocessor took 31.96 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 3237.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3045.55 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: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Witness Printer took 59.81 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: 6.9 MB). Peak memory consumption was 6.9 MB. 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)=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L26] FCALL union u x; VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, x={2:0}] [L27] double r; [L28] int exp; VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, x={2:0}] [L30] FCALL x.d = a VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, x={2:0}] [L32] EXPR, FCALL x.i[0] VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, x={2:0}, x.i[0]=-1610234827] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, exp = (x.i[0] & 0x7FF00000) >> 20=8623494144.720804, x={2:0}, x.i[0]=-1610234827] [L33] EXPR, FCALL x.i[0] VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, x={2:0}, x.i[0]=-1610234827] [L33] FCALL x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, x={2:0}, x.i[0]=-1610234827] [L34] EXPR, FCALL x.d VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, x={2:0}, x.d=8623495166.720804] [L34] r = x.d * 0.5 VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=4311747583.360402, x={2:0}, x.d=8623495166.720804] [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=-9535776660940557000000000000, x={2:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-9535776660940557000000000000, x={2:0}] [L45] FCALL x.i[0] = (exp/2 + 511) << 20 VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-9535776660940557000000000000, x={2:0}] [L46] EXPR, FCALL x.d VAL [\old(a)=8623494144.720804, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-9535776660940557000000000000, x={2:0}, x.d=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003973561454] [L46] r = r * x.d [L48] return r; VAL [\old(a)=8623494144.720804, \result=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003789099457647282, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003789099457647282, x={2:0}] [L48] RET return r; VAL [\old(a)=8623494144.720804, \result=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003789099457647282, a=8623494144.720804, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003789099457647282] [L58] 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)=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003789099457647282, x=8623494144.720804] [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, 47 locations, 1 error locations. UNSAFE Result, 3.0s 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=47occurred 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, 39 NumberOfCodeBlocks, 39 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...