./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/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 8571d6e044ba86c3b82c24f6ff451bf497f2aedf ..................................................................................................................................................................................................................................................................................................................................................................................................... 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_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/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 8571d6e044ba86c3b82c24f6ff451bf497f2aedf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:20:56,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:20:56,820 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:20:56,826 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:20:56,826 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:20:56,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:20:56,827 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:20:56,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:20:56,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:20:56,830 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:20:56,831 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:20:56,831 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:20:56,832 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:20:56,832 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:20:56,833 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:20:56,833 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:20:56,833 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:20:56,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:20:56,836 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:20:56,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:20:56,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:20:56,838 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:20:56,839 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:20:56,840 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:20:56,840 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:20:56,840 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:20:56,841 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:20:56,841 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:20:56,842 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:20:56,842 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:20:56,842 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:20:56,843 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:20:56,843 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:20:56,843 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:20:56,843 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:20:56,844 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:20:56,844 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 03:20:56,851 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:20:56,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:20:56,852 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:20:56,852 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:20:56,852 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:20:56,852 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:20:56,852 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:20:56,853 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:20:56,853 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:20:56,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:20:56,853 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:20:56,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:20:56,853 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:20:56,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:20:56,853 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:20:56,854 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:20:56,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:20:56,854 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:20:56,854 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:20:56,854 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:20:56,854 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:20:56,854 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:20:56,855 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:20:56,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:20:56,855 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:20:56,855 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:20:56,855 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:20:56,855 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 03:20:56,855 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:20:56,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:20:56,856 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_fe2a7d59-3409-4189-b199-57ac40324775/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 -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2018-11-23 03:20:56,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:20:56,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:20:56,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:20:56,892 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:20:56,892 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:20:56,892 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-11-23 03:20:56,934 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data/70130627b/5d02b6a6dd3e4b2989bb8c8a40b324d8/FLAG31d76c264 [2018-11-23 03:20:57,249 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:20:57,250 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-11-23 03:20:57,254 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data/70130627b/5d02b6a6dd3e4b2989bb8c8a40b324d8/FLAG31d76c264 [2018-11-23 03:20:57,266 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data/70130627b/5d02b6a6dd3e4b2989bb8c8a40b324d8 [2018-11-23 03:20:57,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:20:57,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:20:57,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:20:57,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:20:57,273 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:20:57,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@108971e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57, skipping insertion in model container [2018-11-23 03:20:57,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:20:57,298 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:20:57,406 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:20:57,409 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:20:57,421 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:20:57,429 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:20:57,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57 WrapperNode [2018-11-23 03:20:57,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:20:57,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:20:57,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:20:57,430 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:20:57,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:20:57,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:20:57,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:20:57,441 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:20:57,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... [2018-11-23 03:20:57,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:20:57,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:20:57,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:20:57,454 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:20:57,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/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 [2018-11-23 03:20:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:20:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:20:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:20:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:20:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:20:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:20:57,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 03:20:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 03:20:57,609 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:20:57,609 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 03:20:57,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:57 BoogieIcfgContainer [2018-11-23 03:20:57,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:20:57,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:20:57,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:20:57,611 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:20:57,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:20:57" (1/3) ... [2018-11-23 03:20:57,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4749cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:20:57, skipping insertion in model container [2018-11-23 03:20:57,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:57" (2/3) ... [2018-11-23 03:20:57,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4749cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:20:57, skipping insertion in model container [2018-11-23 03:20:57,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:57" (3/3) ... [2018-11-23 03:20:57,614 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i [2018-11-23 03:20:57,619 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:20:57,624 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:20:57,633 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:20:57,652 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:20:57,653 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:20:57,653 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:20:57,653 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:20:57,653 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:20:57,653 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:20:57,653 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:20:57,654 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:20:57,654 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:20:57,666 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 03:20:57,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 03:20:57,670 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:20:57,671 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:20:57,672 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:20:57,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:20:57,676 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-11-23 03:20:57,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:20:57,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:20:57,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:20:57,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:20:57,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:20:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:20:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:20:57,746 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #32#return; [?] CALL call #t~ret0 := main(); [?] ~x~0 := 1.0;~x1~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 2.5); VAL [main_~x~0=1.0] [?] assume !~someBinaryDOUBLEComparisonOperation(~x1~0, ~x~0); VAL [main_~x~0=1.0] [?] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~x~0, ~convertINTToDOUBLE(0)) then 1 else 0)); VAL [|__VERIFIER_assert_#in~cond|=0] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume 0 == ~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume !false; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] ~x~0 := 1.0; [L10] ~x1~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 2.5); VAL [~x~0=1.0] [L12-L16] assume !~someBinaryDOUBLEComparisonOperation(~x1~0, ~x~0); VAL [~x~0=1.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~x~0, ~convertINTToDOUBLE(0)) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] ~x~0 := 1.0; [L10] ~x1~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 2.5); VAL [~x~0=1.0] [L12-L16] assume !~someBinaryDOUBLEComparisonOperation(~x1~0, ~x~0); VAL [~x~0=1.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~x~0, ~convertINTToDOUBLE(0)) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] ~x~0 := 1.0; [L10] ~x1~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 2.5); VAL [~x~0=1.0] [L12-L16] COND TRUE !~someBinaryDOUBLEComparisonOperation(~x1~0, ~x~0) VAL [~x~0=1.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~x~0, ~convertINTToDOUBLE(0)) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] ~x~0 := 1.0; [L10] ~x1~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 2.5); VAL [~x~0=1.0] [L12-L16] COND TRUE !~someBinaryDOUBLEComparisonOperation(~x1~0, ~x~0) VAL [~x~0=1.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~x~0, ~convertINTToDOUBLE(0)) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] ~x~0 := 1.0; [L10] ~x1~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 2.5); VAL [~x~0=1.0] [L12-L16] COND TRUE !~someBinaryDOUBLEComparisonOperation(~x1~0, ~x~0) VAL [~x~0=1.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~x~0, ~convertINTToDOUBLE(0)) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L9] ~x~0 := 1.0; [L10] ~x1~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 2.5); VAL [~x~0=1.0] [L12-L16] COND TRUE !~someBinaryDOUBLEComparisonOperation(~x1~0, ~x~0) VAL [~x~0=1.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryDOUBLEComparisonOperation(~x~0, ~convertINTToDOUBLE(0)) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] [L9] double x = 1.0; [L10] double x1 = x/2.5; VAL [x=1] [L12] COND FALSE !(x1 != x) VAL [x=1] [L18] CALL __VERIFIER_assert(x == 0) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 03:20:57,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:20:57 BoogieIcfgContainer [2018-11-23 03:20:57,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:20:57,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:20:57,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:20:57,761 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:20:57,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:57" (3/4) ... [2018-11-23 03:20:57,764 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 03:20:57,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:20:57,765 INFO L168 Benchmark]: Toolchain (without parser) took 496.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:20:57,767 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:20:57,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.08 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:57,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.53 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:20:57,768 INFO L168 Benchmark]: Boogie Preprocessor took 12.41 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:57,769 INFO L168 Benchmark]: RCFGBuilder took 155.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:57,769 INFO L168 Benchmark]: TraceAbstraction took 151.59 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:57,769 INFO L168 Benchmark]: Witness Printer took 3.37 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. [2018-11-23 03:20:57,771 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.08 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 11.53 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.41 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 155.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 151.59 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.37 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: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L9] double x = 1.0; [L10] double x1 = x/2.5; VAL [x=1] [L12] COND FALSE !(x1 != x) VAL [x=1] [L18] CALL __VERIFIER_assert(x == 0) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 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=18occurred 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, 10 NumberOfCodeBlocks, 10 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-aa41828 [2018-11-23 03:20:59,173 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:20:59,174 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:20:59,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:20:59,183 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:20:59,184 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:20:59,185 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:20:59,186 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:20:59,187 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:20:59,188 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:20:59,189 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:20:59,189 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:20:59,189 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:20:59,190 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:20:59,191 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:20:59,191 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:20:59,192 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:20:59,193 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:20:59,194 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:20:59,195 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:20:59,196 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:20:59,197 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:20:59,199 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:20:59,199 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:20:59,199 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:20:59,199 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:20:59,200 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:20:59,201 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:20:59,201 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:20:59,202 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:20:59,202 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:20:59,203 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:20:59,203 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:20:59,203 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:20:59,204 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:20:59,204 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:20:59,204 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 03:20:59,215 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:20:59,215 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:20:59,215 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:20:59,215 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:20:59,216 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:20:59,216 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:20:59,216 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:20:59,216 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:20:59,217 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:20:59,217 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:20:59,217 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:20:59,217 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:20:59,217 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:20:59,217 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:20:59,217 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 03:20:59,217 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 03:20:59,218 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:20:59,218 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:20:59,218 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:20:59,218 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:20:59,218 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:20:59,218 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:20:59,218 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:20:59,219 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:20:59,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:20:59,219 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:20:59,219 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:20:59,219 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:20:59,219 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 03:20:59,219 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:20:59,220 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 03:20:59,220 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 03:20:59,220 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_fe2a7d59-3409-4189-b199-57ac40324775/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 -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2018-11-23 03:20:59,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:20:59,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:20:59,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:20:59,262 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:20:59,262 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:20:59,262 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-11-23 03:20:59,303 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data/eab148fe7/4cf3659fd20846999da02e2ec1e33486/FLAG4311ed87d [2018-11-23 03:20:59,622 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:20:59,622 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i [2018-11-23 03:20:59,625 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data/eab148fe7/4cf3659fd20846999da02e2ec1e33486/FLAG4311ed87d [2018-11-23 03:21:00,059 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/data/eab148fe7/4cf3659fd20846999da02e2ec1e33486 [2018-11-23 03:21:00,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:21:00,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:21:00,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:21:00,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:21:00,065 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:21:00,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@467d0368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00, skipping insertion in model container [2018-11-23 03:21:00,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:21:00,084 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:21:00,206 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:21:00,211 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:21:00,222 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:21:00,231 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:21:00,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00 WrapperNode [2018-11-23 03:21:00,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:21:00,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:21:00,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:21:00,232 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:21:00,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:21:00,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:21:00,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:21:00,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:21:00,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... [2018-11-23 03:21:00,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:21:00,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:21:00,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:21:00,264 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:21:00,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/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 [2018-11-23 03:21:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:21:00,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:21:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:21:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:21:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:21:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:21:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 03:21:00,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 03:21:01,001 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:21:01,001 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 03:21:01,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:01 BoogieIcfgContainer [2018-11-23 03:21:01,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:21:01,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:21:01,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:21:01,005 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:21:01,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:21:00" (1/3) ... [2018-11-23 03:21:01,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690d2e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:21:01, skipping insertion in model container [2018-11-23 03:21:01,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:21:00" (2/3) ... [2018-11-23 03:21:01,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690d2e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:21:01, skipping insertion in model container [2018-11-23 03:21:01,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:01" (3/3) ... [2018-11-23 03:21:01,007 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i [2018-11-23 03:21:01,015 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:21:01,019 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:21:01,027 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:21:01,047 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:21:01,048 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:21:01,048 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:21:01,048 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:21:01,048 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:21:01,048 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:21:01,049 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:21:01,049 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:21:01,049 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:21:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 03:21:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 03:21:01,064 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:21:01,064 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:21:01,065 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:21:01,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:21:01,069 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-11-23 03:21:01,071 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:21:01,072 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/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 [2018-11-23 03:21:01,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:21:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:21:01,236 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:21:03,930 WARN L180 SmtUtils]: Spent 2.68 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-23 03:21:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:21:03,937 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:21:03,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:21:03,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:21:03,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:21:03,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:21:03,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:21:03,958 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-11-23 03:21:05,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:21:05,046 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-23 03:21:05,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:21:05,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 03:21:05,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:21:05,611 INFO L225 Difference]: With dead ends: 31 [2018-11-23 03:21:05,611 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 03:21:05,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:21:05,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 03:21:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 03:21:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 03:21:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-23 03:21:05,635 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-23 03:21:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:21:05,636 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-23 03:21:05,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:21:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-23 03:21:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 03:21:05,636 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:21:05,637 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:21:05,637 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:21:05,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:21:05,637 INFO L82 PathProgramCache]: Analyzing trace with hash -429188558, now seen corresponding path program 1 times [2018-11-23 03:21:05,638 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:21:05,638 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-23 03:21:05,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:21:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:21:05,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:21:08,903 WARN L180 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-23 03:21:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:21:08,906 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 03:21:21,481 WARN L180 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 7 [2018-11-23 03:21:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:21:21,505 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 03:21:21,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-23 03:21:21,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:21:21,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:21:21,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=17, Unknown=1, NotChecked=0, Total=30 [2018-11-23 03:21:21,507 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2018-11-23 03:21:36,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:21:36,245 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-23 03:21:36,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 03:21:36,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-11-23 03:21:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:21:36,609 INFO L225 Difference]: With dead ends: 19 [2018-11-23 03:21:36,609 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 03:21:36,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=17, Invalid=23, Unknown=2, NotChecked=0, Total=42 [2018-11-23 03:21:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 03:21:36,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-23 03:21:36,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 03:21:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-23 03:21:36,613 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-11-23 03:21:36,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:21:36,613 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-23 03:21:36,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:21:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-23 03:21:36,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 03:21:36,613 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:21:36,614 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:21:36,614 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:21:36,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:21:36,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1003863954, now seen corresponding path program 2 times [2018-11-23 03:21:36,614 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:21:36,614 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-23 03:21:36,618 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 03:21:37,156 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 03:21:37,156 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 03:21:37,207 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:21:42,659 WARN L180 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-23 03:21:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:21:42,661 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 03:21:52,525 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0))) is different from true [2018-11-23 03:21:54,917 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-11-23 03:21:59,344 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from false [2018-11-23 03:22:01,887 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from true [2018-11-23 03:22:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2018-11-23 03:22:01,916 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 03:22:01,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 13 [2018-11-23 03:22:01,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 03:22:01,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 03:22:01,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=73, Unknown=4, NotChecked=54, Total=156 [2018-11-23 03:22:01,918 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2018-11-23 03:22:04,475 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 .cse2))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1)) (or (fp.eq c_main_~x~0 .cse2) (not (fp.eq c_main_~x1~0 c_main_~x~0))))) is different from true [2018-11-23 03:22:13,489 WARN L180 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 23 DAG size of output: 14 [2018-11-23 03:22:18,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:18,061 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-11-23 03:22:18,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 03:22:18,061 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2018-11-23 03:22:18,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:18,062 INFO L225 Difference]: With dead ends: 24 [2018-11-23 03:22:18,062 INFO L226 Difference]: Without dead ends: 16 [2018-11-23 03:22:18,062 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.6s TimeCoverageRelationStatistics Valid=35, Invalid=108, Unknown=5, NotChecked=92, Total=240 [2018-11-23 03:22:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-23 03:22:18,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-23 03:22:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 03:22:18,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-23 03:22:18,065 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-11-23 03:22:18,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:18,066 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-23 03:22:18,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 03:22:18,066 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-23 03:22:18,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 03:22:18,066 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:18,066 INFO L402 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:22:18,067 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:18,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:18,067 INFO L82 PathProgramCache]: Analyzing trace with hash -517174030, now seen corresponding path program 3 times [2018-11-23 03:22:18,067 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:22:18,067 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-23 03:22:18,072 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-23 03:22:18,798 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 03:22:18,798 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 03:22:18,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:22:21,614 WARN L854 $PredicateComparison]: unable to prove that (= c_main_~x1~0 (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) is different from true [2018-11-23 03:22:23,999 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) is different from false [2018-11-23 03:22:26,185 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (= c_main_~x1~0 (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) is different from true [2018-11-23 03:22:28,566 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0) (not (fp.eq c_main_~x~0 v_main_~x~0_13)))) (fp.eq (fp.div roundNearestTiesToEven c_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x~0)) is different from false [2018-11-23 03:22:42,357 WARN L832 $PredicateComparison]: unable to prove that (or (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) (= |c___VERIFIER_assert_#in~cond| (_ bv0 32))) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_prenex_2 .cse3))) (and (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_prenex_2)) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-11-23 03:22:54,623 WARN L832 $PredicateComparison]: unable to prove that (or (and (= (_ bv0 32) c___VERIFIER_assert_~cond) (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))))) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_prenex_2 .cse3))) (and (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_prenex_2)) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-11-23 03:23:01,797 WARN L832 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-11-23 03:23:04,136 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_13 .cse1))) (and (not (fp.eq .cse0 v_main_~x~0_13)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-11-23 03:23:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 1 not checked. [2018-11-23 03:23:04,138 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 03:23:06,373 WARN L832 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~x1~0 c_main_~x~0) (fp.eq c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0))) is different from false [2018-11-23 03:23:08,562 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~x1~0 c_main_~x~0) (fp.eq c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~x1~0))) is different from true [2018-11-23 03:23:15,655 WARN L832 $PredicateComparison]: unable to prove that (forall ((v_main_~x~0_15 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_15 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_main_~x~0_15))))) is different from false [2018-11-23 03:23:18,036 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_main_~x~0_15 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~x~0_15 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_main_~x~0_15))))) is different from true [2018-11-23 03:23:46,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 03:23:46,691 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 03:23:46,697 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 03:24:16,757 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-23 03:24:16,757 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2018-11-23 03:24:18,357 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-23 03:24:18,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-11-23 03:24:18,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 03:24:18,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 03:24:18,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=24, Unknown=12, NotChecked=120, Total=182 [2018-11-23 03:24:18,358 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2018-11-23 03:24:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:24:18,362 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-23 03:24:18,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 03:24:18,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-11-23 03:24:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:24:18,363 INFO L225 Difference]: With dead ends: 16 [2018-11-23 03:24:18,363 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 03:24:18,363 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.5s TimeCoverageRelationStatistics Valid=26, Invalid=24, Unknown=12, NotChecked=120, Total=182 [2018-11-23 03:24:18,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 03:24:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 03:24:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 03:24:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 03:24:18,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-23 03:24:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:24:18,364 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 03:24:18,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 03:24:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 03:24:18,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:24:18,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 03:24:20,074 WARN L180 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 44 DAG size of output: 1 [2018-11-23 03:24:39,572 WARN L180 SmtUtils]: Spent 19.50 s on a formula simplification that was a NOOP. DAG size: 18 [2018-11-23 03:26:16,878 WARN L180 SmtUtils]: Spent 1.62 m on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2018-11-23 03:26:16,879 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 03:26:16,879 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:26:16,879 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:26:16,880 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 03:26:16,880 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:26:16,880 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:26:16,880 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 7 20) the Hoare annotation is: true [2018-11-23 03:26:16,880 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 7 20) no Hoare annotation was computed. [2018-11-23 03:26:16,880 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-23 03:26:16,880 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 7 20) no Hoare annotation was computed. [2018-11-23 03:26:16,880 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 16) the Hoare annotation is: (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse3 (= main_~x1~0 (fp.div roundNearestTiesToEven main_~x~0 .cse1)))) (or (let ((.cse0 (fp.div roundNearestTiesToEven .cse2 .cse1))) (and (= main_~x1~0 (fp.div roundNearestTiesToEven .cse0 .cse1)) (= main_~x~0 .cse0))) (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0) (not (fp.eq main_~x~0 v_main_~x~0_13)))) .cse3) (and (= .cse2 main_~x~0) .cse3)))) [2018-11-23 03:26:16,880 INFO L444 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (or (and (exists ((v_main_~x~0_13 (_ FloatingPoint 11 53))) (and (= (fp.div roundNearestTiesToEven v_main_~x~0_13 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0) (not (fp.eq main_~x~0 v_main_~x~0_13)))) (fp.eq (fp.div roundNearestTiesToEven main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) main_~x~0)) (fp.eq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) [2018-11-23 03:26:16,880 INFO L448 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-11-23 03:26:16,880 INFO L448 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-11-23 03:26:16,880 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-11-23 03:26:16,881 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-11-23 03:26:16,881 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-11-23 03:26:16,881 INFO L448 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-11-23 03:26:16,886 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,886 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,886 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,886 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,887 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,887 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,887 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,887 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,887 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,887 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-11-23 03:26:16,888 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,888 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-11-23 03:26:16,888 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,888 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,888 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,889 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,889 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,893 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,893 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,893 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-11-23 03:26:16,893 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,893 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-11-23 03:26:16,893 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,894 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,894 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,894 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,894 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:26:16 BoogieIcfgContainer [2018-11-23 03:26:16,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:26:16,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:26:16,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:26:16,896 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:26:16,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:21:01" (3/4) ... [2018-11-23 03:26:16,900 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:26:16,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 03:26:16,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 03:26:16,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 03:26:16,907 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 03:26:16,907 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 03:26:16,907 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 03:26:16,924 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || ((\exists v_main_~x~0_13 : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_13, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == x && !~fp.eq~DOUBLE(x, v_main_~x~0_13)) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)))) || (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) [2018-11-23 03:26:16,930 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fe2a7d59-3409-4189-b199-57ac40324775/bin-2019/uautomizer/witness.graphml [2018-11-23 03:26:16,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:26:16,931 INFO L168 Benchmark]: Toolchain (without parser) took 316869.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 949.7 MB in the beginning and 977.7 MB in the end (delta: -27.9 MB). Peak memory consumption was 111.5 MB. Max. memory is 11.5 GB. [2018-11-23 03:26:16,931 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. [2018-11-23 03:26:16,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.99 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:26:16,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.63 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:26:16,933 INFO L168 Benchmark]: Boogie Preprocessor took 16.64 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:26:16,933 INFO L168 Benchmark]: RCFGBuilder took 737.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-23 03:26:16,934 INFO L168 Benchmark]: TraceAbstraction took 315893.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.3 MB in the end (delta: 127.1 MB). Peak memory consumption was 127.1 MB. Max. memory is 11.5 GB. [2018-11-23 03:26:16,934 INFO L168 Benchmark]: Witness Printer took 34.29 ms. Allocated memory is still 1.2 GB. Free memory was 984.3 MB in the beginning and 977.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:26:16,936 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 168.99 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 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 14.63 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.64 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 737.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 315893.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.3 MB in the end (delta: 127.1 MB). Peak memory consumption was 127.1 MB. Max. memory is 11.5 GB. * Witness Printer took 34.29 ms. Allocated memory is still 1.2 GB. Free memory was 984.3 MB in the beginning and 977.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant [2018-11-23 03:26:16,941 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,942 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,942 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,942 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,942 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,942 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,942 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,943 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,943 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,943 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-11-23 03:26:16,943 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,943 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-11-23 03:26:16,943 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,943 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,944 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,944 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,944 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,944 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,945 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,945 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,945 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,945 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,945 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,945 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,945 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,945 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,946 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-11-23 03:26:16,946 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,946 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_13,QUANTIFIED] [2018-11-23 03:26:16,946 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,946 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,946 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,946 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 03:26:16,946 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) || ((\exists v_main_~x~0_13 : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~x~0_13, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == x && !~fp.eq~DOUBLE(x, v_main_~x~0_13)) && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)))) || (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x && x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 315.8s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 32.9s AutomataDifference, 0.0s DeadEndRemovalTime, 118.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 2 SDslu, 112 SDs, 0 SdLazy, 59 SolverSat, 5 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 50 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 87.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 18 NumberOfFragments, 98 HoareAnnotationTreeSize, 11 FomulaSimplifications, 133 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 248 FormulaSimplificationTreeSizeReductionInter, 118.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 31.7s SatisfiabilityAnalysisTime, 130.9s InterpolantComputationTime, 64 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 67 ConstructedInterpolants, 5 QuantifiedInterpolants, 7126 SizeOfPredicates, 12 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 14/29 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...