./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_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_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b4428fa1091f4cda8c57d8e78988385def4dacf9 ................................................................................................................................................................................................................................................................................................................... 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_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b4428fa1091f4cda8c57d8e78988385def4dacf9 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 22:26:33,685 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 22:26:33,686 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 22:26:33,693 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 22:26:33,693 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 22:26:33,693 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 22:26:33,694 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 22:26:33,696 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 22:26:33,697 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 22:26:33,698 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 22:26:33,698 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 22:26:33,698 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 22:26:33,699 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 22:26:33,700 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 22:26:33,701 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 22:26:33,702 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 22:26:33,702 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 22:26:33,704 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 22:26:33,705 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 22:26:33,706 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 22:26:33,707 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 22:26:33,708 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 22:26:33,710 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 22:26:33,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 22:26:33,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 22:26:33,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 22:26:33,712 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 22:26:33,712 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 22:26:33,713 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 22:26:33,714 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 22:26:33,714 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 22:26:33,714 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 22:26:33,714 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 22:26:33,715 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 22:26:33,716 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 22:26:33,717 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 22:26:33,717 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-09 22:26:33,724 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 22:26:33,724 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 22:26:33,725 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 22:26:33,725 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 22:26:33,725 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 22:26:33,725 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 22:26:33,725 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 22:26:33,726 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 22:26:33,726 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 22:26:33,726 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 22:26:33,726 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 22:26:33,726 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 22:26:33,726 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 22:26:33,727 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 22:26:33,728 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 22:26:33,728 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 22:26:33,728 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 22:26:33,728 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 22:26:33,728 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 22:26:33,728 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 22:26:33,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 22:26:33,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-09 22:26:33,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 22:26:33,729 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 22:26:33,729 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 22:26:33,729 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 22:26:33,729 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 22:26:33,729 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 22:26:33,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-09 22:26:33,730 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_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4428fa1091f4cda8c57d8e78988385def4dacf9 [2018-11-09 22:26:33,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 22:26:33,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 22:26:33,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 22:26:33,762 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 22:26:33,762 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 22:26:33,762 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c [2018-11-09 22:26:33,803 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data/bf8bac8cf/919129a3f9764b63985e33d6903d57c0/FLAG4b2823067 [2018-11-09 22:26:34,192 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 22:26:34,192 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c [2018-11-09 22:26:34,197 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data/bf8bac8cf/919129a3f9764b63985e33d6903d57c0/FLAG4b2823067 [2018-11-09 22:26:34,206 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data/bf8bac8cf/919129a3f9764b63985e33d6903d57c0 [2018-11-09 22:26:34,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 22:26:34,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-09 22:26:34,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 22:26:34,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 22:26:34,212 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 22:26:34,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce791db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34, skipping insertion in model container [2018-11-09 22:26:34,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 22:26:34,233 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 22:26:34,333 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:26:34,335 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 22:26:34,349 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:26:34,364 INFO L193 MainTranslator]: Completed translation [2018-11-09 22:26:34,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34 WrapperNode [2018-11-09 22:26:34,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 22:26:34,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 22:26:34,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 22:26:34,365 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 22:26:34,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (1/1) ... [2018-11-09 22:26:34,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 22:26:34,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 22:26:34,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 22:26:34,395 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 22:26:34,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 22:26:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-09 22:26:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 22:26:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-09 22:26:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-09 22:26:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-09 22:26:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-09 22:26:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-09 22:26:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-09 22:26:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 22:26:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-09 22:26:34,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-09 22:26:34,664 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 22:26:34,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:34 BoogieIcfgContainer [2018-11-09 22:26:34,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 22:26:34,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-09 22:26:34,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-09 22:26:34,669 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-09 22:26:34,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:26:34" (1/3) ... [2018-11-09 22:26:34,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235c970c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:26:34, skipping insertion in model container [2018-11-09 22:26:34,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:34" (2/3) ... [2018-11-09 22:26:34,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235c970c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:26:34, skipping insertion in model container [2018-11-09 22:26:34,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:34" (3/3) ... [2018-11-09 22:26:34,672 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c_true-unreach-call.c [2018-11-09 22:26:34,680 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-09 22:26:34,688 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-09 22:26:34,702 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-09 22:26:34,727 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 22:26:34,728 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-09 22:26:34,728 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-09 22:26:34,728 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-09 22:26:34,728 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 22:26:34,729 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 22:26:34,729 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-09 22:26:34,729 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 22:26:34,729 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-09 22:26:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-11-09 22:26:34,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-09 22:26:34,750 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:26:34,750 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] [2018-11-09 22:26:34,752 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:26:34,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:26:34,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1306204284, now seen corresponding path program 1 times [2018-11-09 22:26:34,757 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:26:34,758 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:26:34,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:26:34,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:26:34,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:26:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:26:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:26:34,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:26:34,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 22:26:34,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-09 22:26:34,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-09 22:26:34,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 22:26:34,872 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-11-09 22:26:34,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:26:34,891 INFO L93 Difference]: Finished difference Result 114 states and 137 transitions. [2018-11-09 22:26:34,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-09 22:26:34,891 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-09 22:26:34,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:26:34,897 INFO L225 Difference]: With dead ends: 114 [2018-11-09 22:26:34,897 INFO L226 Difference]: Without dead ends: 57 [2018-11-09 22:26:34,900 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 [2018-11-09 22:26:34,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-09 22:26:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-11-09 22:26:34,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-09 22:26:34,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-11-09 22:26:34,929 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 24 [2018-11-09 22:26:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:26:34,929 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-11-09 22:26:34,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-09 22:26:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-11-09 22:26:34,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-09 22:26:34,930 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:26:34,931 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:26:34,931 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:26:34,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:26:34,931 INFO L82 PathProgramCache]: Analyzing trace with hash 485784064, now seen corresponding path program 1 times [2018-11-09 22:26:34,931 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 22:26:34,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 22:26:34,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:26:34,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:26:34,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 22:26:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:26:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 22:26:35,016 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-09 22:26:35,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:26:35 BoogieIcfgContainer [2018-11-09 22:26:35,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-09 22:26:35,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 22:26:35,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 22:26:35,035 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 22:26:35,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:34" (3/4) ... [2018-11-09 22:26:35,037 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-09 22:26:35,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 22:26:35,038 INFO L168 Benchmark]: Toolchain (without parser) took 830.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:35,039 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:26:35,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.93 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:35,040 INFO L168 Benchmark]: Boogie Preprocessor took 29.25 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:35,040 INFO L168 Benchmark]: RCFGBuilder took 269.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:35,041 INFO L168 Benchmark]: TraceAbstraction took 368.78 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: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:35,041 INFO L168 Benchmark]: Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:26:35,043 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.93 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.25 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 269.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 368.78 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: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L74] float x = 1.0f / 0.0f; [L75] CALL, EXPR round_float(x) VAL [\old(x)=10] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=10, x=10] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10, gf_u={5:0}, x=10] [L18] FCALL gf_u.value = (x) VAL [\old(x)=10, gf_u={5:0}, x=10] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=10, gf_u={5:0}, gf_u.word=11, x=10] [L19] (w) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=10, w=11, x=10] [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=10, exponent_less_127=128, w=11, x=10] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=10, exponent_less_127=128, w=11, x=10] [L40] COND TRUE exponent_less_127 == 128 [L42] RET return x + x; VAL [\old(x)=10, exponent_less_127=128, w=11, x=10] [L75] EXPR round_float(x) VAL [round_float(x)=9, x=10] [L75] float res = round_float(x); [L78] CALL, EXPR isinf_float(res) VAL [\old(x)=9] [L56] __int32_t ix; VAL [\old(x)=9, x=9] [L58] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=9, gf_u={7:0}, x=9] [L59] FCALL gf_u.value = (x) VAL [\old(x)=9, gf_u={7:0}, x=9] [L60] EXPR, FCALL gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, x=9] [L60] (ix) = gf_u.word VAL [(ix) = gf_u.word=8, \old(x)=9, gf_u={7:0}, gf_u.word=3, ix=3, x=9] [L61] COND FALSE !(0) VAL [\old(x)=9, ix=3, x=9] [L62] ix &= 0x7fffffff [L63] RET return ((ix) == 0x7f800000L); VAL [\old(x)=9, \result=0, ix=0, x=9] [L78] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=9, x=10] [L78] COND TRUE !isinf_float(res) [L79] __VERIFIER_error() VAL [res=9, x=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 61 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 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=61occurred 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, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 [2018-11-09 22:26:36,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 22:26:36,472 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 22:26:36,480 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 22:26:36,480 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 22:26:36,481 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 22:26:36,482 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 22:26:36,483 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 22:26:36,484 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 22:26:36,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 22:26:36,485 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 22:26:36,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 22:26:36,486 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 22:26:36,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 22:26:36,487 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 22:26:36,487 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 22:26:36,488 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 22:26:36,489 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 22:26:36,490 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 22:26:36,491 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 22:26:36,492 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 22:26:36,493 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 22:26:36,494 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 22:26:36,494 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 22:26:36,494 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 22:26:36,495 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 22:26:36,496 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 22:26:36,496 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 22:26:36,497 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 22:26:36,497 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 22:26:36,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 22:26:36,498 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 22:26:36,498 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 22:26:36,498 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 22:26:36,499 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 22:26:36,499 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 22:26:36,499 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-09 22:26:36,509 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 22:26:36,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 22:26:36,510 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 22:26:36,510 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 22:26:36,510 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 22:26:36,511 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 22:26:36,511 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 22:26:36,511 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 22:26:36,511 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 22:26:36,511 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 22:26:36,511 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 22:26:36,511 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 22:26:36,511 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 22:26:36,512 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 22:26:36,512 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-09 22:26:36,512 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-09 22:26:36,512 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 22:26:36,512 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 22:26:36,512 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 22:26:36,512 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 22:26:36,512 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 22:26:36,513 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 22:26:36,513 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-09 22:26:36,513 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 22:26:36,513 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 22:26:36,513 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 22:26:36,513 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 22:26:36,513 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-09 22:26:36,514 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 22:26:36,514 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-09 22:26:36,514 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-09 22:26:36,514 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_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4428fa1091f4cda8c57d8e78988385def4dacf9 [2018-11-09 22:26:36,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 22:26:36,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 22:26:36,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 22:26:36,555 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 22:26:36,555 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 22:26:36,555 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c [2018-11-09 22:26:36,592 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data/acfcdc50a/1d30454bf5104313a86fd426dad7b1d4/FLAG6e8d66cd1 [2018-11-09 22:26:36,986 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 22:26:36,987 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/sv-benchmarks/c/float-newlib/float_req_bl_1032c_true-unreach-call.c [2018-11-09 22:26:36,991 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data/acfcdc50a/1d30454bf5104313a86fd426dad7b1d4/FLAG6e8d66cd1 [2018-11-09 22:26:37,001 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/data/acfcdc50a/1d30454bf5104313a86fd426dad7b1d4 [2018-11-09 22:26:37,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 22:26:37,004 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-09 22:26:37,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 22:26:37,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 22:26:37,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 22:26:37,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6f3fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37, skipping insertion in model container [2018-11-09 22:26:37,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 22:26:37,029 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 22:26:37,143 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:26:37,147 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 22:26:37,169 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 22:26:37,184 INFO L193 MainTranslator]: Completed translation [2018-11-09 22:26:37,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37 WrapperNode [2018-11-09 22:26:37,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 22:26:37,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 22:26:37,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 22:26:37,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 22:26:37,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (1/1) ... [2018-11-09 22:26:37,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 22:26:37,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 22:26:37,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 22:26:37,213 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 22:26:37,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-09 22:26:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-09 22:26:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 22:26:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-09 22:26:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-09 22:26:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-09 22:26:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-09 22:26:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-09 22:26:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-09 22:26:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-09 22:26:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-09 22:26:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-09 22:26:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-09 22:26:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-09 22:26:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-09 22:26:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-09 22:26:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-09 22:26:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 22:26:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-09 22:26:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-09 22:26:37,406 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-09 22:26:37,412 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-09 22:26:37,492 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-09 22:26:37,497 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-09 22:26:37,507 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 22:26:37,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:37 BoogieIcfgContainer [2018-11-09 22:26:37,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 22:26:37,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-09 22:26:37,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-09 22:26:37,511 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-09 22:26:37,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:26:37" (1/3) ... [2018-11-09 22:26:37,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f43b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:26:37, skipping insertion in model container [2018-11-09 22:26:37,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:37" (2/3) ... [2018-11-09 22:26:37,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f43b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:26:37, skipping insertion in model container [2018-11-09 22:26:37,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:37" (3/3) ... [2018-11-09 22:26:37,513 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c_true-unreach-call.c [2018-11-09 22:26:37,518 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-09 22:26:37,522 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-09 22:26:37,531 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-09 22:26:37,554 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 22:26:37,555 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-09 22:26:37,555 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-09 22:26:37,555 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-09 22:26:37,555 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 22:26:37,555 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 22:26:37,555 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-09 22:26:37,555 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 22:26:37,555 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-09 22:26:37,565 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-11-09 22:26:37,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-09 22:26:37,569 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:26:37,569 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] [2018-11-09 22:26:37,571 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:26:37,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:26:37,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1940072417, now seen corresponding path program 1 times [2018-11-09 22:26:37,576 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-09 22:26:37,577 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-09 22:26:37,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:26:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:26:37,636 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:26:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:26:37,649 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-09 22:26:37,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:26:37,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-09 22:26:37,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-09 22:26:37,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-09 22:26:37,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 22:26:37,670 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-11-09 22:26:37,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:26:37,688 INFO L93 Difference]: Finished difference Result 112 states and 135 transitions. [2018-11-09 22:26:37,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-09 22:26:37,689 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-09 22:26:37,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:26:37,695 INFO L225 Difference]: With dead ends: 112 [2018-11-09 22:26:37,695 INFO L226 Difference]: Without dead ends: 56 [2018-11-09 22:26:37,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-09 22:26:37,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-09 22:26:37,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-09 22:26:37,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-09 22:26:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-11-09 22:26:37,725 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 23 [2018-11-09 22:26:37,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:26:37,725 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-11-09 22:26:37,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-09 22:26:37,725 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-11-09 22:26:37,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-09 22:26:37,726 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:26:37,726 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:26:37,727 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:26:37,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:26:37,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1015563363, now seen corresponding path program 1 times [2018-11-09 22:26:37,728 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-09 22:26:37,728 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-09 22:26:37,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:26:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:26:37,805 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:26:38,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-09 22:26:38,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-09 22:26:38,238 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-09 22:26:38,246 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:26:38,255 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:26:38,255 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-09 22:26:38,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-09 22:26:38,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-09 22:26:38,326 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-09 22:26:38,328 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:26:38,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:26:38,330 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-09 22:26:38,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:26:38,654 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-09 22:26:38,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:26:38,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-09 22:26:38,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-09 22:26:38,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-09 22:26:38,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-11-09 22:26:38,668 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 13 states. [2018-11-09 22:26:39,223 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-09 22:26:40,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:26:40,448 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2018-11-09 22:26:40,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-09 22:26:40,448 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-11-09 22:26:40,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:26:40,450 INFO L225 Difference]: With dead ends: 65 [2018-11-09 22:26:40,450 INFO L226 Difference]: Without dead ends: 58 [2018-11-09 22:26:40,451 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2018-11-09 22:26:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-09 22:26:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2018-11-09 22:26:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-09 22:26:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-11-09 22:26:40,458 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 41 [2018-11-09 22:26:40,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:26:40,458 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-11-09 22:26:40,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-09 22:26:40,458 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-11-09 22:26:40,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-09 22:26:40,459 INFO L367 BasicCegarLoop]: Found error trace [2018-11-09 22:26:40,459 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 22:26:40,460 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-09 22:26:40,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 22:26:40,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1226914276, now seen corresponding path program 1 times [2018-11-09 22:26:40,460 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-09 22:26:40,461 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-09 22:26:40,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 22:26:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 22:26:40,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 22:26:40,517 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-09 22:26:40,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-09 22:26:40,519 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-09 22:26:40,521 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:26:40,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:26:40,527 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-09 22:26:40,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-09 22:26:40,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-09 22:26:40,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-09 22:26:40,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:26:40,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-09 22:26:40,545 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-09 22:26:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 22:26:40,620 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-09 22:26:40,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 22:26:40,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-09 22:26:40,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-09 22:26:40,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-09 22:26:40,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-09 22:26:40,633 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 9 states. [2018-11-09 22:26:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 22:26:41,074 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-11-09 22:26:41,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-09 22:26:41,075 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-11-09 22:26:41,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-09 22:26:41,075 INFO L225 Difference]: With dead ends: 58 [2018-11-09 22:26:41,075 INFO L226 Difference]: Without dead ends: 0 [2018-11-09 22:26:41,075 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-11-09 22:26:41,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-09 22:26:41,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-09 22:26:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-09 22:26:41,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-09 22:26:41,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-11-09 22:26:41,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-09 22:26:41,076 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 22:26:41,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-09 22:26:41,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-09 22:26:41,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-09 22:26:41,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L58-1(line 58) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L58-3(line 58) no Hoare annotation was computed. [2018-11-09 22:26:41,129 INFO L421 ceAbstractionStarter]: At program point L57-3(lines 57 61) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-09 22:26:41,129 INFO L425 ceAbstractionStarter]: For program point L57-4(lines 57 61) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 55 64) the Hoare annotation is: true [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 55 64) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 55 64) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-11-09 22:26:41,130 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L428 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-09 22:26:41,131 INFO L425 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point L46-2(lines 11 52) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point L47(line 47) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-11-09 22:26:41,132 INFO L425 ceAbstractionStarter]: For program point L47-2(line 47) no Hoare annotation was computed. [2018-11-09 22:26:41,133 INFO L425 ceAbstractionStarter]: For program point L47-3(line 47) no Hoare annotation was computed. [2018-11-09 22:26:41,133 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-09 22:26:41,133 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-09 22:26:41,133 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-09 22:26:41,133 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-09 22:26:41,133 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-09 22:26:41,133 INFO L421 ceAbstractionStarter]: At program point L78(line 78) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-11-09 22:26:41,133 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 66 84) the Hoare annotation is: true [2018-11-09 22:26:41,134 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 78 81) no Hoare annotation was computed. [2018-11-09 22:26:41,134 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 66 84) no Hoare annotation was computed. [2018-11-09 22:26:41,134 INFO L421 ceAbstractionStarter]: At program point L75(line 75) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) [2018-11-09 22:26:41,134 INFO L425 ceAbstractionStarter]: For program point L75-1(line 75) no Hoare annotation was computed. [2018-11-09 22:26:41,134 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 66 84) no Hoare annotation was computed. [2018-11-09 22:26:41,134 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2018-11-09 22:26:41,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:26:41 BoogieIcfgContainer [2018-11-09 22:26:41,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-09 22:26:41,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 22:26:41,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 22:26:41,146 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 22:26:41,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:37" (3/4) ... [2018-11-09 22:26:41,150 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-09 22:26:41,154 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-09 22:26:41,154 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-09 22:26:41,154 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-09 22:26:41,155 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-09 22:26:41,159 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-09 22:26:41,159 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-09 22:26:41,160 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-09 22:26:41,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-09 22:26:41,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-09 22:26:41,199 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ce975554-0eba-413e-8d48-ca301d4d8ea7/bin-2019/uautomizer/witness.graphml [2018-11-09 22:26:41,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 22:26:41,200 INFO L168 Benchmark]: Toolchain (without parser) took 4196.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 953.2 MB in the beginning and 917.1 MB in the end (delta: 36.1 MB). Peak memory consumption was 168.7 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:41,201 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:26:41,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.79 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:41,202 INFO L168 Benchmark]: Boogie Preprocessor took 27.74 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:26:41,202 INFO L168 Benchmark]: RCFGBuilder took 294.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:41,202 INFO L168 Benchmark]: TraceAbstraction took 3637.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 917.1 MB in the end (delta: 186.9 MB). Peak memory consumption was 186.9 MB. Max. memory is 11.5 GB. [2018-11-09 22:26:41,202 INFO L168 Benchmark]: Witness Printer took 53.73 ms. Allocated memory is still 1.2 GB. Free memory is still 917.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 22:26:41,204 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 179.79 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.74 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 294.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3637.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 917.1 MB in the end (delta: 186.9 MB). Peak memory consumption was 186.9 MB. Max. memory is 11.5 GB. * Witness Printer took 53.73 ms. Allocated memory is still 1.2 GB. Free memory is still 917.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: 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: 16]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 138 SDtfs, 93 SDslu, 586 SDs, 0 SdLazy, 243 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 45 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 102 ConstructedInterpolants, 6 QuantifiedInterpolants, 20244 SizeOfPredicates, 17 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...