./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8314f0a25d0cae1024b24eed74020923c3a8036e ............................................................................................................................................................................................................................................................................................................................................................................. 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_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8314f0a25d0cae1024b24eed74020923c3a8036e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:21:39,763 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:21:39,765 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:21:39,774 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:21:39,775 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:21:39,775 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:21:39,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:21:39,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:21:39,780 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:21:39,780 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:21:39,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:21:39,781 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:21:39,783 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:21:39,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:21:39,784 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:21:39,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:21:39,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:21:39,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:21:39,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:21:39,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:21:39,792 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:21:39,793 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:21:39,795 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:21:39,795 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:21:39,795 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:21:39,796 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:21:39,797 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:21:39,798 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:21:39,799 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:21:39,800 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:21:39,800 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:21:39,801 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:21:39,801 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:21:39,801 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:21:39,803 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:21:39,803 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:21:39,803 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 19:21:39,815 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:21:39,815 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:21:39,816 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:21:39,816 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:21:39,816 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:21:39,816 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:21:39,817 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 19:21:39,817 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:21:39,817 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 19:21:39,817 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 19:21:39,817 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:21:39,818 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:21:39,818 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:21:39,819 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:21:39,819 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:21:39,820 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:21:39,820 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:21:39,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:21:39,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:21:39,820 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:21:39,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:21:39,820 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:21:39,821 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:21:39,821 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:21:39,821 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:21:39,821 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:21:39,821 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:21:39,821 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:21:39,822 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:21:39,822 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:21:39,822 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 19:21:39,822 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:21:39,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:21:39,822 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:21:39,822 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8314f0a25d0cae1024b24eed74020923c3a8036e [2018-10-26 19:21:39,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:21:39,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:21:39,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:21:39,870 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:21:39,871 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:21:39,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-10-26 19:21:39,916 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data/5b12f482d/8599b4bc2a754a51899ee63122c88bea/FLAGa47c6597c [2018-10-26 19:21:40,302 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:21:40,303 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-10-26 19:21:40,309 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data/5b12f482d/8599b4bc2a754a51899ee63122c88bea/FLAGa47c6597c [2018-10-26 19:21:40,322 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data/5b12f482d/8599b4bc2a754a51899ee63122c88bea [2018-10-26 19:21:40,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:21:40,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:21:40,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:21:40,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:21:40,331 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:21:40,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e1d618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40, skipping insertion in model container [2018-10-26 19:21:40,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:21:40,360 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:21:40,501 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:21:40,504 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:21:40,527 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:21:40,544 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:21:40,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40 WrapperNode [2018-10-26 19:21:40,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:21:40,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:21:40,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:21:40,546 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:21:40,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:21:40,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:21:40,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:21:40,587 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:21:40,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... [2018-10-26 19:21:40,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:21:40,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:21:40,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:21:40,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:21:40,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:21:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:21:40,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:21:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:21:40,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:21:40,811 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-10-26 19:21:40,811 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-10-26 19:21:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:21:40,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:21:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 19:21:40,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 19:21:41,273 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:21:41,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:41 BoogieIcfgContainer [2018-10-26 19:21:41,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:21:41,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:21:41,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:21:41,278 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:21:41,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:21:40" (1/3) ... [2018-10-26 19:21:41,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fa2a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:21:41, skipping insertion in model container [2018-10-26 19:21:41,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:40" (2/3) ... [2018-10-26 19:21:41,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fa2a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:21:41, skipping insertion in model container [2018-10-26 19:21:41,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:41" (3/3) ... [2018-10-26 19:21:41,282 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d_true-unreach-call.c [2018-10-26 19:21:41,293 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:21:41,300 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:21:41,316 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:21:41,349 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:21:41,349 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:21:41,349 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:21:41,350 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:21:41,350 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:21:41,350 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:21:41,352 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:21:41,352 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:21:41,371 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-26 19:21:41,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 19:21:41,381 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:41,381 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:41,384 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:41,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:41,389 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-10-26 19:21:41,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:21:41,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:21:41,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:41,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:21:41,441 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:21:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:21:41,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:21:41,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:21:41,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:21:41,537 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 19:21:41,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 19:21:41,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 19:21:41,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:21:41,557 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-26 19:21:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:21:41,587 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-26 19:21:41,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 19:21:41,588 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 19:21:41,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:21:41,599 INFO L225 Difference]: With dead ends: 78 [2018-10-26 19:21:41,599 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 19:21:41,604 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:21:41,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 19:21:41,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 19:21:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 19:21:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-26 19:21:41,650 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-10-26 19:21:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:21:41,651 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-26 19:21:41,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 19:21:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-10-26 19:21:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 19:21:41,652 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:41,652 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:41,652 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:41,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:41,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-10-26 19:21:41,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:21:41,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:21:41,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:41,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:21:41,656 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:21:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:21:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:21:41,760 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:21:41,775 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,776 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,776 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,776 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,777 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,777 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,777 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,778 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,778 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,778 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,779 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,779 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,779 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,779 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,780 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,780 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,780 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,781 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,781 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,781 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,781 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,782 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,782 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:21:41,782 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:21:41,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:21:41 BoogieIcfgContainer [2018-10-26 19:21:41,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:21:41,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:21:41,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:21:41,799 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:21:41,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:41" (3/4) ... [2018-10-26 19:21:41,803 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:21:41,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:21:41,804 INFO L168 Benchmark]: Toolchain (without parser) took 1478.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 953.1 MB in the beginning and 1.1 GB in the end (delta: -123.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:41,806 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:21:41,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.16 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:41,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.48 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:41,808 INFO L168 Benchmark]: Boogie Preprocessor took 57.01 ms. Allocated memory is still 1.0 GB. Free memory was 939.7 MB in the beginning and 937.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:41,809 INFO L168 Benchmark]: RCFGBuilder took 629.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:41,809 INFO L168 Benchmark]: TraceAbstraction took 523.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:41,810 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:21:41,814 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 218.16 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.4 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 41.48 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.01 ms. Allocated memory is still 1.0 GB. Free memory was 939.7 MB in the beginning and 937.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 629.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 523.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450947, huge_floor=1000000000000000000000000000000] [L75] float x = 0.0f; VAL [huge_floor=1000000000000000000000000000000, x=0] [L76] CALL, EXPR floor_float(x) VAL [huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L17] CALL ieee_float_shape_type gf_u; [L17] RET ieee_float_shape_type gf_u; [L18] CALL gf_u.value = (x) [L18] RET gf_u.value = (x) [L19] CALL, EXPR gf_u.word [L19] RET, EXPR gf_u.word [L19] (i0) = gf_u.word [L19] RET (i0) = gf_u.word [L20] COND FALSE !(0) VAL [huge_floor=1000000000000000000000000000000] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] RET return x; VAL [huge_floor=1000000000000000000000000000000] [L76] EXPR floor_float(x) VAL [floor_float(x)=0, huge_floor=1000000000000000000000000000000, x=0] [L76] float res = floor_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_floor=1000000000000000000000000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:21:43,877 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:21:43,878 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:21:43,887 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:21:43,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:21:43,888 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:21:43,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:21:43,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:21:43,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:21:43,893 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:21:43,893 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:21:43,894 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:21:43,894 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:21:43,895 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:21:43,896 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:21:43,897 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:21:43,898 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:21:43,899 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:21:43,901 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:21:43,902 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:21:43,903 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:21:43,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:21:43,907 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:21:43,907 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:21:43,907 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:21:43,908 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:21:43,909 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:21:43,910 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:21:43,910 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:21:43,911 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:21:43,912 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:21:43,912 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:21:43,913 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:21:43,913 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:21:43,914 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:21:43,914 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:21:43,914 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 19:21:43,926 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:21:43,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:21:43,927 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:21:43,927 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:21:43,927 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:21:43,928 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:21:43,928 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:21:43,928 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:21:43,929 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:21:43,929 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:21:43,929 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:21:43,929 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:21:43,930 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:21:43,930 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:21:43,931 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:21:43,931 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:21:43,932 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:21:43,932 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:21:43,932 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:21:43,932 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:21:43,932 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:21:43,933 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:21:43,933 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:21:43,933 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:21:43,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:21:43,933 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:21:43,934 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:21:43,934 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:21:43,934 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 19:21:43,934 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:21:43,934 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:21:43,935 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:21:43,935 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_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8314f0a25d0cae1024b24eed74020923c3a8036e [2018-10-26 19:21:43,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:21:43,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:21:43,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:21:43,984 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:21:43,985 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:21:43,985 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-10-26 19:21:44,031 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data/245698e4b/0f243a6a2e2945698fa6d80ad9f606ac/FLAG78d4346a0 [2018-10-26 19:21:44,421 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:21:44,422 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-10-26 19:21:44,428 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data/245698e4b/0f243a6a2e2945698fa6d80ad9f606ac/FLAG78d4346a0 [2018-10-26 19:21:44,441 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/data/245698e4b/0f243a6a2e2945698fa6d80ad9f606ac [2018-10-26 19:21:44,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:21:44,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:21:44,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:21:44,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:21:44,450 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:21:44,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c67d5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44, skipping insertion in model container [2018-10-26 19:21:44,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:21:44,482 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:21:44,663 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:21:44,669 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:21:44,700 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:21:44,729 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:21:44,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44 WrapperNode [2018-10-26 19:21:44,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:21:44,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:21:44,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:21:44,733 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:21:44,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:21:44,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:21:44,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:21:44,774 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:21:44,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... [2018-10-26 19:21:44,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:21:44,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:21:44,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:21:44,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:21:44,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:21:44,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:21:44,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:21:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-10-26 19:21:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-10-26 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:21:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:21:44,919 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 19:21:44,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 19:21:45,211 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:21:45,631 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:21:45,638 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:21:45,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:45 BoogieIcfgContainer [2018-10-26 19:21:45,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:21:45,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:21:45,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:21:45,642 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:21:45,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:21:44" (1/3) ... [2018-10-26 19:21:45,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2779ade8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:21:45, skipping insertion in model container [2018-10-26 19:21:45,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:21:44" (2/3) ... [2018-10-26 19:21:45,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2779ade8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:21:45, skipping insertion in model container [2018-10-26 19:21:45,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:45" (3/3) ... [2018-10-26 19:21:45,645 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d_true-unreach-call.c [2018-10-26 19:21:45,654 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:21:45,661 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:21:45,675 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:21:45,698 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:21:45,698 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:21:45,698 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:21:45,699 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:21:45,699 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:21:45,699 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:21:45,699 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:21:45,699 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:21:45,699 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:21:45,716 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-26 19:21:45,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 19:21:45,721 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:45,722 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:45,724 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:45,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:45,729 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-10-26 19:21:45,733 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:21:45,734 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 19:21:45,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:21:45,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:21:45,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:21:45,810 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:21:45,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:21:45,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:21:45,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 19:21:45,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 19:21:45,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:21:45,835 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-26 19:21:45,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:21:45,861 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-26 19:21:45,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 19:21:45,863 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 19:21:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:21:45,874 INFO L225 Difference]: With dead ends: 78 [2018-10-26 19:21:45,874 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 19:21:45,877 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:21:45,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 19:21:45,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 19:21:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 19:21:45,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-26 19:21:45,910 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-10-26 19:21:45,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:21:45,911 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-26 19:21:45,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 19:21:45,911 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-10-26 19:21:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 19:21:45,912 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:45,912 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:45,912 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:45,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:45,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-10-26 19:21:45,913 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:21:45,913 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/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 [2018-10-26 19:21:45,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:21:45,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:21:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:21:46,298 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:21:46,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:21:46,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:21:46,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:21:46,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:21:46,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:21:46,308 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-10-26 19:21:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:21:47,399 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-10-26 19:21:47,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 19:21:47,400 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-10-26 19:21:47,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:21:47,402 INFO L225 Difference]: With dead ends: 60 [2018-10-26 19:21:47,402 INFO L226 Difference]: Without dead ends: 44 [2018-10-26 19:21:47,403 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 19:21:47,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-26 19:21:47,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-10-26 19:21:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 19:21:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-10-26 19:21:47,422 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-10-26 19:21:47,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:21:47,423 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-10-26 19:21:47,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:21:47,423 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-10-26 19:21:47,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 19:21:47,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:47,424 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:47,424 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:47,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:47,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1376484092, now seen corresponding path program 1 times [2018-10-26 19:21:47,425 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:21:47,425 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/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 [2018-10-26 19:21:47,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:21:47,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:21:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:21:47,624 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:21:47,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:21:47,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:21:47,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:21:47,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:21:47,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:21:47,640 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-10-26 19:21:47,989 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-10-26 19:21:49,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:21:49,200 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-10-26 19:21:49,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 19:21:49,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-26 19:21:49,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:21:49,203 INFO L225 Difference]: With dead ends: 67 [2018-10-26 19:21:49,204 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 19:21:49,204 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-26 19:21:49,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 19:21:49,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-10-26 19:21:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 19:21:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-10-26 19:21:49,208 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-10-26 19:21:49,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:21:49,209 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-10-26 19:21:49,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:21:49,209 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-10-26 19:21:49,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 19:21:49,211 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:49,211 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:49,211 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:49,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1666542110, now seen corresponding path program 1 times [2018-10-26 19:21:49,212 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:21:49,212 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/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 [2018-10-26 19:21:49,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:21:49,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:21:50,321 WARN L179 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 19:21:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:21:50,327 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:21:50,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:21:50,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 19:21:50,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 19:21:50,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 19:21:50,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:21:50,341 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-10-26 19:21:51,467 WARN L179 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-26 19:21:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:21:52,096 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-10-26 19:21:52,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 19:21:52,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-10-26 19:21:52,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:21:52,101 INFO L225 Difference]: With dead ends: 52 [2018-10-26 19:21:52,101 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 19:21:52,102 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:21:52,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 19:21:52,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-26 19:21:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 19:21:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-10-26 19:21:52,108 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-10-26 19:21:52,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:21:52,108 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-10-26 19:21:52,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 19:21:52,108 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-10-26 19:21:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 19:21:52,109 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:52,109 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:52,109 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:52,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:52,110 INFO L82 PathProgramCache]: Analyzing trace with hash 66145073, now seen corresponding path program 1 times [2018-10-26 19:21:52,112 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:21:52,112 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 19:21:52,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:21:52,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:21:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:21:52,249 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:21:52,267 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:21:52,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:21:52,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:21:52,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:21:52,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:21:52,268 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-10-26 19:21:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:21:52,421 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-10-26 19:21:52,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 19:21:52,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-10-26 19:21:52,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:21:52,422 INFO L225 Difference]: With dead ends: 44 [2018-10-26 19:21:52,422 INFO L226 Difference]: Without dead ends: 41 [2018-10-26 19:21:52,422 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-26 19:21:52,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-26 19:21:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-10-26 19:21:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-10-26 19:21:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-10-26 19:21:52,429 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-10-26 19:21:52,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:21:52,429 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-10-26 19:21:52,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:21:52,430 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-10-26 19:21:52,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 19:21:52,430 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:52,430 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:52,430 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:52,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:52,431 INFO L82 PathProgramCache]: Analyzing trace with hash -173589656, now seen corresponding path program 1 times [2018-10-26 19:21:52,431 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:21:52,431 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-10-26 19:21:52,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:21:52,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:21:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:21:52,576 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:21:52,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:21:52,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 19:21:52,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 19:21:52,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 19:21:52,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 19:21:52,585 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-10-26 19:21:52,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:21:52,892 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-10-26 19:21:52,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 19:21:52,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-10-26 19:21:52,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:21:52,896 INFO L225 Difference]: With dead ends: 57 [2018-10-26 19:21:52,896 INFO L226 Difference]: Without dead ends: 33 [2018-10-26 19:21:52,896 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-26 19:21:52,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-26 19:21:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-26 19:21:52,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-26 19:21:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-10-26 19:21:52,900 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-10-26 19:21:52,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:21:52,900 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-10-26 19:21:52,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 19:21:52,900 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-10-26 19:21:52,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 19:21:52,901 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:21:52,901 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:21:52,901 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:21:52,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:21:52,902 INFO L82 PathProgramCache]: Analyzing trace with hash -8459046, now seen corresponding path program 1 times [2018-10-26 19:21:52,902 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:21:52,902 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-10-26 19:21:52,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:21:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:21:52,990 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:21:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:21:53,201 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:21:53,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:21:53,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-26 19:21:53,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-26 19:21:53,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-26 19:21:53,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-26 19:21:53,211 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-10-26 19:21:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:21:53,546 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-10-26 19:21:53,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 19:21:53,547 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-10-26 19:21:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:21:53,548 INFO L225 Difference]: With dead ends: 33 [2018-10-26 19:21:53,548 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 19:21:53,548 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-10-26 19:21:53,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 19:21:53,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 19:21:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 19:21:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 19:21:53,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-10-26 19:21:53,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:21:53,550 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 19:21:53,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-26 19:21:53,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 19:21:53,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 19:21:53,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 19:21:53,848 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:21:53,848 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:21:53,848 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:21:53,848 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (= |floor_float_#in~x| floor_float_~x) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-10-26 19:21:53,849 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-10-26 19:21:53,850 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-10-26 19:21:53,850 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-10-26 19:21:53,850 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-10-26 19:21:53,850 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-10-26 19:21:53,850 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-10-26 19:21:53,851 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-10-26 19:21:53,851 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-10-26 19:21:53,851 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-10-26 19:21:53,851 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:21:53,851 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0) [2018-10-26 19:21:53,851 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:21:53,851 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:21:53,851 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-10-26 19:21:53,851 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-10-26 19:21:53,851 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-10-26 19:21:53,851 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-10-26 19:21:53,851 INFO L421 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (or (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) main_~res~0)) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-10-26 19:21:53,851 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-10-26 19:21:53,852 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-10-26 19:21:53,852 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (or (= (_ +zero 8 24) main_~x~0) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-10-26 19:21:53,852 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-10-26 19:21:53,852 INFO L425 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-10-26 19:21:53,852 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-10-26 19:21:53,852 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-10-26 19:21:53,852 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_floor~0)) (= |__signbit_float_#in~x| __signbit_float_~x)) [2018-10-26 19:21:53,852 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-10-26 19:21:53,852 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-10-26 19:21:53,852 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-10-26 19:21:53,853 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-10-26 19:21:53,860 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,861 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,863 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,864 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,865 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,865 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,865 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,866 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:21:53 BoogieIcfgContainer [2018-10-26 19:21:53,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:21:53,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:21:53,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:21:53,868 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:21:53,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:21:45" (3/4) ... [2018-10-26 19:21:53,872 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 19:21:53,877 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 19:21:53,877 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-10-26 19:21:53,877 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 19:21:53,878 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-10-26 19:21:53,882 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-10-26 19:21:53,883 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-10-26 19:21:53,883 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 19:21:53,904 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) [2018-10-26 19:21:53,904 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) || \old(x) == x [2018-10-26 19:21:53,934 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ff22d8a2-0296-4ef7-a75a-c86fde029b81/bin-2019/utaipan/witness.graphml [2018-10-26 19:21:53,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:21:53,935 INFO L168 Benchmark]: Toolchain (without parser) took 9490.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.1 MB). Free memory was 954.6 MB in the beginning and 884.6 MB in the end (delta: 70.0 MB). Peak memory consumption was 255.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:53,935 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-10-26 19:21:53,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.16 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:53,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.23 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:21:53,936 INFO L168 Benchmark]: Boogie Preprocessor took 33.82 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:21:53,936 INFO L168 Benchmark]: RCFGBuilder took 830.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.1 MB). Free memory was 938.5 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:53,937 INFO L168 Benchmark]: TraceAbstraction took 8228.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 891.1 MB in the end (delta: 262.9 MB). Peak memory consumption was 262.9 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:53,937 INFO L168 Benchmark]: Witness Printer took 66.30 ms. Allocated memory is still 1.2 GB. Free memory was 891.1 MB in the beginning and 884.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-10-26 19:21:53,941 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 284.16 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.23 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.82 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 830.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.1 MB). Free memory was 938.5 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8228.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 891.1 MB in the end (delta: 262.9 MB). Peak memory consumption was 262.9 MB. Max. memory is 11.5 GB. * Witness Printer took 66.30 ms. Allocated memory is still 1.2 GB. Free memory was 891.1 MB in the beginning and 884.6 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 RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 59]: Loop Invariant [2018-10-26 19:21:53,945 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,945 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,945 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,946 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) || \old(x) == x - InvariantResult [Line: 16]: Loop Invariant [2018-10-26 19:21:53,950 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,950 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,950 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 19:21:53,951 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 8.1s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 226 SDslu, 728 SDs, 0 SdLazy, 330 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 68 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 17 QuantifiedInterpolants, 19826 SizeOfPredicates, 59 NumberOfNonLiveVariables, 608 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...