./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1230_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_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/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 31da98a788dd1938c78053bade42bc512d4e8954 ................................................................................................................................................................................................................................................................................................................................................................................................... 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_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/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 31da98a788dd1938c78053bade42bc512d4e8954 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:09:33,750 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:09:33,752 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:09:33,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:09:33,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:09:33,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:09:33,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:09:33,763 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:09:33,764 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:09:33,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:09:33,765 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:09:33,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:09:33,766 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:09:33,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:09:33,767 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:09:33,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:09:33,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:09:33,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:09:33,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:09:33,772 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:09:33,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:09:33,774 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:09:33,775 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:09:33,776 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:09:33,776 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:09:33,777 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:09:33,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:09:33,778 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:09:33,778 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:09:33,779 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:09:33,779 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:09:33,780 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:09:33,780 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:09:33,780 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:09:33,781 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:09:33,781 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:09:33,782 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 13:09:33,792 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:09:33,792 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:09:33,793 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:09:33,793 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:09:33,793 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:09:33,793 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:09:33,794 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:09:33,794 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:09:33,794 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:09:33,794 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:09:33,794 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:09:33,794 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:09:33,794 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:09:33,795 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:09:33,795 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:09:33,795 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:09:33,795 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:09:33,795 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:09:33,795 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:09:33,796 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:09:33,796 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:09:33,796 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:09:33,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:09:33,796 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:09:33,796 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:09:33,796 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:09:33,797 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 13:09:33,797 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:09:33,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:09:33,797 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_1a08b255-2cf8-47bb-82c6-f4a33136f914/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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2018-11-10 13:09:33,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:09:33,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:09:33,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:09:33,833 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:09:33,833 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:09:33,834 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-11-10 13:09:33,879 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data/64a734de3/80b9d514a0844925ba1b69957d1af8da/FLAGa65b446d9 [2018-11-10 13:09:34,216 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:09:34,216 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-11-10 13:09:34,222 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data/64a734de3/80b9d514a0844925ba1b69957d1af8da/FLAGa65b446d9 [2018-11-10 13:09:34,233 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data/64a734de3/80b9d514a0844925ba1b69957d1af8da [2018-11-10 13:09:34,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:09:34,237 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 13:09:34,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:09:34,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:09:34,241 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:09:34,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bef964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34, skipping insertion in model container [2018-11-10 13:09:34,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:09:34,267 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:09:34,394 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:09:34,396 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:09:34,410 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:09:34,426 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:09:34,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34 WrapperNode [2018-11-10 13:09:34,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:09:34,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:09:34,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:09:34,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:09:34,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (1/1) ... [2018-11-10 13:09:34,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:09:34,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:09:34,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:09:34,451 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:09:34,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:09:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:09:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:09:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-10 13:09:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-11-10 13:09:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 13:09:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:09:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 13:09:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-10 13:09:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 13:09:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-10 13:09:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 13:09:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 13:09:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-11-10 13:09:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 13:09:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:09:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:09:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:09:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-10 13:09:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-10 13:09:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 13:09:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 13:09:34,677 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:09:34,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:34 BoogieIcfgContainer [2018-11-10 13:09:34,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:09:34,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:09:34,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:09:34,681 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:09:34,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:09:34" (1/3) ... [2018-11-10 13:09:34,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ae4889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:09:34, skipping insertion in model container [2018-11-10 13:09:34,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:34" (2/3) ... [2018-11-10 13:09:34,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ae4889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:09:34, skipping insertion in model container [2018-11-10 13:09:34,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:34" (3/3) ... [2018-11-10 13:09:34,683 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230_true-unreach-call.c [2018-11-10 13:09:34,689 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:09:34,694 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:09:34,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:09:34,722 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:09:34,723 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:09:34,723 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:09:34,723 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:09:34,723 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:09:34,723 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:09:34,723 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:09:34,723 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:09:34,724 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:09:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-11-10 13:09:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 13:09:34,738 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:34,739 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] [2018-11-10 13:09:34,740 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:34,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:34,743 INFO L82 PathProgramCache]: Analyzing trace with hash 972398874, now seen corresponding path program 1 times [2018-11-10 13:09:34,744 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:09:34,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:09:34,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:34,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:34,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:09:34,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:34,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:09:34,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:09:34,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:09:34,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:09:34,843 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-11-10 13:09:34,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:34,864 INFO L93 Difference]: Finished difference Result 87 states and 108 transitions. [2018-11-10 13:09:34,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:09:34,865 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-11-10 13:09:34,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:34,871 INFO L225 Difference]: With dead ends: 87 [2018-11-10 13:09:34,871 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 13:09:34,873 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 [2018-11-10 13:09:34,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 13:09:34,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 13:09:34,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 13:09:34,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-11-10 13:09:34,898 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 26 [2018-11-10 13:09:34,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:34,898 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-11-10 13:09:34,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:09:34,898 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-11-10 13:09:34,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 13:09:34,900 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:34,900 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] [2018-11-10 13:09:34,900 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:34,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:34,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1488347716, now seen corresponding path program 1 times [2018-11-10 13:09:34,901 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:09:34,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:09:34,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:34,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:34,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:34,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:09:34,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:34,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:34,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:34,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:34,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:34,991 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 4 states. [2018-11-10 13:09:35,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:35,030 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-11-10 13:09:35,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:35,031 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-11-10 13:09:35,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:35,033 INFO L225 Difference]: With dead ends: 59 [2018-11-10 13:09:35,033 INFO L226 Difference]: Without dead ends: 48 [2018-11-10 13:09:35,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:35,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-10 13:09:35,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-11-10 13:09:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-10 13:09:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-11-10 13:09:35,039 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 35 [2018-11-10 13:09:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:35,039 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-11-10 13:09:35,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-11-10 13:09:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 13:09:35,040 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:35,040 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] [2018-11-10 13:09:35,040 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:35,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:35,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1403372891, now seen corresponding path program 1 times [2018-11-10 13:09:35,041 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:09:35,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:09:35,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:35,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:35,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:09:35,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:35,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:35,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:35,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:35,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:35,090 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 4 states. [2018-11-10 13:09:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:35,128 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2018-11-10 13:09:35,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:35,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2018-11-10 13:09:35,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:35,130 INFO L225 Difference]: With dead ends: 63 [2018-11-10 13:09:35,130 INFO L226 Difference]: Without dead ends: 52 [2018-11-10 13:09:35,130 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:35,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-10 13:09:35,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-11-10 13:09:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-10 13:09:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-11-10 13:09:35,136 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 38 [2018-11-10 13:09:35,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:35,137 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-11-10 13:09:35,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-11-10 13:09:35,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 13:09:35,138 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:35,138 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] [2018-11-10 13:09:35,138 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:35,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:35,138 INFO L82 PathProgramCache]: Analyzing trace with hash 104178918, now seen corresponding path program 1 times [2018-11-10 13:09:35,138 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:09:35,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:09:35,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:35,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:35,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:09:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:09:35,185 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:09:35,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:09:35 BoogieIcfgContainer [2018-11-10 13:09:35,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:09:35,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:09:35,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:09:35,203 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:09:35,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:34" (3/4) ... [2018-11-10 13:09:35,206 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:09:35,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:09:35,206 INFO L168 Benchmark]: Toolchain (without parser) took 969.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -101.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:35,207 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:09:35,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:35,208 INFO L168 Benchmark]: Boogie Preprocessor took 23.73 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:35,208 INFO L168 Benchmark]: RCFGBuilder took 227.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:35,209 INFO L168 Benchmark]: TraceAbstraction took 524.76 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: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:35,209 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:09:35,211 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 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.51 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.73 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 227.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 524.76 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: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 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: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 54. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] float y = 0.0f / 0.0f; [L56] CALL, EXPR fmin_float(x, y) VAL [\old(x)=4286578691, \old(y)=4286578692] [L35] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578691] [L12] __uint32_t w; VAL [\old(x)=4286578691, x=4286578691] [L15] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=4286578691, gf_u={4286578695:0}, x=4286578691] [L16] FCALL gf_u.value = (x) VAL [\old(x)=4286578691, gf_u={4286578695:0}, x=4286578691] [L17] EXPR, FCALL gf_u.word VAL [\old(x)=4286578691, gf_u={4286578695:0}, gf_u.word=4286578689, x=4286578691] [L17] (w) = gf_u.word VAL [(w) = gf_u.word=4286578693, \old(x)=4286578691, gf_u={4286578695:0}, gf_u.word=4286578689, w=4286578689, x=4286578691] [L18] COND FALSE !(0) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L20] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L31] RET return 0; VAL [\old(x)=4286578691, \result=0, w=4286578689, x=4286578691] [L35] EXPR __fpclassify_float(x) VAL [\old(x)=4286578691, \old(y)=4286578692, __fpclassify_float(x)=0, x=4286578691, y=4286578692] [L35] COND TRUE __fpclassify_float(x) == 0 [L36] RET return y; VAL [\old(x)=4286578691, \old(y)=4286578692, \result=4286578692, x=4286578691, y=4286578692] [L56] EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578692, x=4286578691, y=4286578692] [L56] float res = fmin_float(x, y); [L58] CALL, EXPR isnan_float(res) VAL [\old(x)=4286578692] [L44] RET return x != x; VAL [\old(x)=4286578692, \result=0, x=4286578692] [L58] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=4286578692, x=4286578691, y=4286578692] [L58] COND TRUE !isnan_float(res) [L59] __VERIFIER_error() VAL [res=4286578692, x=4286578691, y=4286578692] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 48 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 158 SDtfs, 0 SDslu, 190 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:09:36,661 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:09:36,662 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:09:36,670 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:09:36,670 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:09:36,671 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:09:36,672 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:09:36,673 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:09:36,674 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:09:36,674 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:09:36,675 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:09:36,675 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:09:36,676 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:09:36,676 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:09:36,677 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:09:36,678 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:09:36,678 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:09:36,679 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:09:36,681 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:09:36,683 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:09:36,683 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:09:36,684 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:09:36,686 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:09:36,686 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:09:36,686 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:09:36,687 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:09:36,688 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:09:36,688 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:09:36,689 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:09:36,690 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:09:36,690 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:09:36,691 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:09:36,691 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:09:36,691 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:09:36,692 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:09:36,692 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:09:36,692 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 13:09:36,703 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:09:36,703 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:09:36,704 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:09:36,704 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:09:36,704 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:09:36,704 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:09:36,705 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:09:36,705 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:09:36,705 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:09:36,705 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:09:36,705 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:09:36,706 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:09:36,706 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:09:36,706 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:09:36,707 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:09:36,707 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:09:36,707 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:09:36,707 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:09:36,707 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:09:36,707 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:09:36,707 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:09:36,707 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:09:36,708 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:09:36,708 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:09:36,708 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:09:36,708 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:09:36,708 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:09:36,708 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 13:09:36,708 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:09:36,708 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:09:36,709 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:09:36,709 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_1a08b255-2cf8-47bb-82c6-f4a33136f914/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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2018-11-10 13:09:36,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:09:36,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:09:36,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:09:36,753 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:09:36,753 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:09:36,753 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-11-10 13:09:36,792 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data/f7a29e446/f3702536478e4c6193bb0e359c16e385/FLAGa5db86449 [2018-11-10 13:09:37,179 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:09:37,179 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-11-10 13:09:37,183 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data/f7a29e446/f3702536478e4c6193bb0e359c16e385/FLAGa5db86449 [2018-11-10 13:09:37,192 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/data/f7a29e446/f3702536478e4c6193bb0e359c16e385 [2018-11-10 13:09:37,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:09:37,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 13:09:37,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:09:37,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:09:37,199 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:09:37,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49bce155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37, skipping insertion in model container [2018-11-10 13:09:37,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:09:37,224 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:09:37,340 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:09:37,344 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:09:37,358 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:09:37,373 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:09:37,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37 WrapperNode [2018-11-10 13:09:37,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:09:37,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:09:37,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:09:37,375 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:09:37,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (1/1) ... [2018-11-10 13:09:37,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:09:37,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:09:37,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:09:37,404 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:09:37,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:09:37,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:09:37,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:09:37,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-10 13:09:37,491 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-11-10 13:09:37,491 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 13:09:37,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:09:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 13:09:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-10 13:09:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 13:09:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-10 13:09:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-10 13:09:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-10 13:09:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-10 13:09:37,620 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 13:09:37,626 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 13:09:37,673 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:09:37,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:37 BoogieIcfgContainer [2018-11-10 13:09:37,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:09:37,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:09:37,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:09:37,676 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:09:37,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:09:37" (1/3) ... [2018-11-10 13:09:37,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d91bd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:09:37, skipping insertion in model container [2018-11-10 13:09:37,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:37" (2/3) ... [2018-11-10 13:09:37,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d91bd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:09:37, skipping insertion in model container [2018-11-10 13:09:37,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:37" (3/3) ... [2018-11-10 13:09:37,679 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230_true-unreach-call.c [2018-11-10 13:09:37,686 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:09:37,691 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:09:37,703 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:09:37,729 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:09:37,730 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:09:37,730 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:09:37,730 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:09:37,730 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:09:37,730 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:09:37,730 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:09:37,730 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:09:37,730 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:09:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-10 13:09:37,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 13:09:37,745 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:37,745 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] [2018-11-10 13:09:37,747 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:37,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:37,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1802458678, now seen corresponding path program 1 times [2018-11-10 13:09:37,755 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:37,755 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:37,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:37,805 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:09:37,818 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:37,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:37,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:09:37,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:09:37,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:09:37,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:09:37,841 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-10 13:09:37,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:37,860 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2018-11-10 13:09:37,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:09:37,861 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-10 13:09:37,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:37,868 INFO L225 Difference]: With dead ends: 81 [2018-11-10 13:09:37,869 INFO L226 Difference]: Without dead ends: 41 [2018-11-10 13:09:37,872 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:09:37,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-10 13:09:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-10 13:09:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-10 13:09:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-11-10 13:09:37,902 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 24 [2018-11-10 13:09:37,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:37,902 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-11-10 13:09:37,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:09:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-11-10 13:09:37,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 13:09:37,904 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:37,905 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] [2018-11-10 13:09:37,905 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:37,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:37,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1841206223, now seen corresponding path program 1 times [2018-11-10 13:09:37,906 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:37,906 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/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 [2018-11-10 13:09:37,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:37,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:09:38,005 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:38,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:38,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:38,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:38,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:38,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,019 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 4 states. [2018-11-10 13:09:38,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:38,047 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2018-11-10 13:09:38,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:38,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-11-10 13:09:38,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:38,051 INFO L225 Difference]: With dead ends: 54 [2018-11-10 13:09:38,051 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 13:09:38,052 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 13:09:38,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 13:09:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 13:09:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-11-10 13:09:38,059 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 33 [2018-11-10 13:09:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:38,059 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-11-10 13:09:38,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:38,059 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-11-10 13:09:38,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 13:09:38,060 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:38,060 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] [2018-11-10 13:09:38,060 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:38,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:38,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1530245693, now seen corresponding path program 1 times [2018-11-10 13:09:38,061 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:38,063 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/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 [2018-11-10 13:09:38,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:38,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:38,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:09:38,135 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:38,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:38,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:38,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:38,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:38,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,145 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 4 states. [2018-11-10 13:09:38,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:38,163 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2018-11-10 13:09:38,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:38,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-10 13:09:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:38,165 INFO L225 Difference]: With dead ends: 57 [2018-11-10 13:09:38,165 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 13:09:38,165 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 13:09:38,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-11-10 13:09:38,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 13:09:38,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-11-10 13:09:38,170 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 34 [2018-11-10 13:09:38,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:38,170 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-11-10 13:09:38,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-11-10 13:09:38,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 13:09:38,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:38,171 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] [2018-11-10 13:09:38,171 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:38,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:38,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1792427957, now seen corresponding path program 1 times [2018-11-10 13:09:38,172 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:38,172 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:38,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:38,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:09:38,219 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:38,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:38,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:38,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:38,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:38,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,227 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 4 states. [2018-11-10 13:09:38,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:38,261 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2018-11-10 13:09:38,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:38,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-11-10 13:09:38,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:38,262 INFO L225 Difference]: With dead ends: 57 [2018-11-10 13:09:38,262 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 13:09:38,263 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 13:09:38,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-11-10 13:09:38,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 13:09:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-11-10 13:09:38,268 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 35 [2018-11-10 13:09:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:38,269 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-11-10 13:09:38,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:38,269 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-11-10 13:09:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 13:09:38,270 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:38,270 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] [2018-11-10 13:09:38,270 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:38,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:38,271 INFO L82 PathProgramCache]: Analyzing trace with hash -136871486, now seen corresponding path program 1 times [2018-11-10 13:09:38,271 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:38,271 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:38,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:38,311 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:09:38,414 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:38,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:38,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 13:09:38,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:09:38,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:09:38,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:09:38,426 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 9 states. [2018-11-10 13:09:38,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:38,602 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2018-11-10 13:09:38,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:09:38,603 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-11-10 13:09:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:38,603 INFO L225 Difference]: With dead ends: 51 [2018-11-10 13:09:38,604 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 13:09:38,604 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 13:09:38,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 13:09:38,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-11-10 13:09:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-10 13:09:38,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2018-11-10 13:09:38,609 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 36 [2018-11-10 13:09:38,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:38,610 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-11-10 13:09:38,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:09:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2018-11-10 13:09:38,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-10 13:09:38,611 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:38,611 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:09:38,611 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:38,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:38,612 INFO L82 PathProgramCache]: Analyzing trace with hash -2090172777, now seen corresponding path program 1 times [2018-11-10 13:09:38,612 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:38,612 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:38,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:38,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 13:09:38,693 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:38,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:38,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:38,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:38,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:38,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,701 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 4 states. [2018-11-10 13:09:38,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:38,715 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-11-10 13:09:38,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:38,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-11-10 13:09:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:38,717 INFO L225 Difference]: With dead ends: 54 [2018-11-10 13:09:38,717 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 13:09:38,717 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 13:09:38,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 13:09:38,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 13:09:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-11-10 13:09:38,723 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 49 [2018-11-10 13:09:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:38,723 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-11-10 13:09:38,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-11-10 13:09:38,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-10 13:09:38,724 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:38,724 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:09:38,724 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:38,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:38,725 INFO L82 PathProgramCache]: Analyzing trace with hash -2037596367, now seen corresponding path program 1 times [2018-11-10 13:09:38,725 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:38,725 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:38,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:38,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 13:09:38,811 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:38,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:38,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:38,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:38,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:38,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,818 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 4 states. [2018-11-10 13:09:38,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:38,846 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-11-10 13:09:38,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:38,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2018-11-10 13:09:38,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:38,847 INFO L225 Difference]: With dead ends: 57 [2018-11-10 13:09:38,847 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 13:09:38,848 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 13:09:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-11-10 13:09:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 13:09:38,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2018-11-10 13:09:38,852 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 50 [2018-11-10 13:09:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:38,852 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2018-11-10 13:09:38,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2018-11-10 13:09:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 13:09:38,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:38,853 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:09:38,854 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:38,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:38,854 INFO L82 PathProgramCache]: Analyzing trace with hash 191150482, now seen corresponding path program 1 times [2018-11-10 13:09:38,854 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:38,854 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:38,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:38,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-10 13:09:38,982 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:38,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:38,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:09:38,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:09:38,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:09:38,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:09:38,989 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 5 states. [2018-11-10 13:09:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:39,153 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-11-10 13:09:39,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:09:39,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2018-11-10 13:09:39,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:39,154 INFO L225 Difference]: With dead ends: 55 [2018-11-10 13:09:39,154 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 13:09:39,154 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:09:39,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 13:09:39,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-10 13:09:39,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-10 13:09:39,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2018-11-10 13:09:39,159 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 51 [2018-11-10 13:09:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:39,159 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2018-11-10 13:09:39,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:09:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2018-11-10 13:09:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 13:09:39,160 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:39,160 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:09:39,160 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:39,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:39,161 INFO L82 PathProgramCache]: Analyzing trace with hash 892215060, now seen corresponding path program 1 times [2018-11-10 13:09:39,161 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:39,161 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:39,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:39,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-10 13:09:39,304 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:39,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:39,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 13:09:39,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 13:09:39,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 13:09:39,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 13:09:39,311 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 10 states. [2018-11-10 13:09:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:39,502 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2018-11-10 13:09:39,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 13:09:39,502 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2018-11-10 13:09:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:39,503 INFO L225 Difference]: With dead ends: 51 [2018-11-10 13:09:39,503 INFO L226 Difference]: Without dead ends: 41 [2018-11-10 13:09:39,503 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-11-10 13:09:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-10 13:09:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-10 13:09:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-10 13:09:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-11-10 13:09:39,506 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 51 [2018-11-10 13:09:39,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:39,507 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-11-10 13:09:39,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 13:09:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-11-10 13:09:39,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 13:09:39,508 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:39,508 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:09:39,508 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:39,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:39,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1581339685, now seen corresponding path program 1 times [2018-11-10 13:09:39,509 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:39,509 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:39,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:39,547 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 13:09:39,557 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:39,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:39,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:39,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:39,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:39,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:39,565 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 4 states. [2018-11-10 13:09:39,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:39,572 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-11-10 13:09:39,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:39,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-11-10 13:09:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:39,574 INFO L225 Difference]: With dead ends: 54 [2018-11-10 13:09:39,574 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 13:09:39,574 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:39,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 13:09:39,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-11-10 13:09:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-10 13:09:39,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-11-10 13:09:39,577 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 51 [2018-11-10 13:09:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:39,577 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-11-10 13:09:39,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:39,577 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-11-10 13:09:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 13:09:39,578 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:39,578 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:09:39,578 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:39,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:39,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1789299466, now seen corresponding path program 1 times [2018-11-10 13:09:39,578 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:39,578 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:39,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:39,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:39,709 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-10 13:09:39,710 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:39,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:39,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 13:09:39,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:09:39,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:09:39,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:09:39,718 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 9 states. [2018-11-10 13:09:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:39,887 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-11-10 13:09:39,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:09:39,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2018-11-10 13:09:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:39,888 INFO L225 Difference]: With dead ends: 41 [2018-11-10 13:09:39,888 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:09:39,888 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 13:09:39,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:09:39,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:09:39,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:09:39,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:09:39,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2018-11-10 13:09:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:39,889 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:09:39,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:09:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:09:39,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:09:39,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:09:39,986 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 44) no Hoare annotation was computed. [2018-11-10 13:09:39,986 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 44) the Hoare annotation is: true [2018-11-10 13:09:39,986 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 44) no Hoare annotation was computed. [2018-11-10 13:09:39,986 INFO L428 ceAbstractionStarter]: At program point fmin_floatENTRY(lines 34 41) the Hoare annotation is: true [2018-11-10 13:09:39,986 INFO L425 ceAbstractionStarter]: For program point fmin_floatEXIT(lines 34 41) no Hoare annotation was computed. [2018-11-10 13:09:39,986 INFO L425 ceAbstractionStarter]: For program point fmin_floatFINAL(lines 34 41) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point L40-2(line 40) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L421 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: (and (= fmin_float_~x |fmin_float_#in~x|) (= fmin_float_~y |fmin_float_#in~y|)) [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point L37-1(lines 37 38) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L421 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (= fmin_float_~x |fmin_float_#in~x|) (= fmin_float_~y |fmin_float_#in~y|)) [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point L35-1(lines 35 36) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:09:39,987 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 46 64) the Hoare annotation is: true [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 46 64) no Hoare annotation was computed. [2018-11-10 13:09:39,987 INFO L425 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L421 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~res~0) (= .cse0 main_~y~0))) [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 61) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 46 64) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L421 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= .cse0 main_~y~0))) [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L56-1(line 56) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point __fpclassify_floatFINAL(lines 11 32) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L15-2(line 15) no Hoare annotation was computed. [2018-11-10 13:09:39,988 INFO L425 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2018-11-10 13:09:39,989 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 31) no Hoare annotation was computed. [2018-11-10 13:09:39,989 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 31) no Hoare annotation was computed. [2018-11-10 13:09:39,989 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-10 13:09:39,989 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-10 13:09:39,989 INFO L428 ceAbstractionStarter]: At program point __fpclassify_floatENTRY(lines 11 32) the Hoare annotation is: true [2018-11-10 13:09:39,989 INFO L428 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: true [2018-11-10 13:09:39,989 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 11 32) no Hoare annotation was computed. [2018-11-10 13:09:39,989 INFO L425 ceAbstractionStarter]: For program point __fpclassify_floatEXIT(lines 11 32) no Hoare annotation was computed. [2018-11-10 13:09:39,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:09:39 BoogieIcfgContainer [2018-11-10 13:09:39,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:09:39,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:09:39,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:09:39,993 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:09:39,993 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:37" (3/4) ... [2018-11-10 13:09:39,995 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:09:40,000 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 13:09:40,000 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:09:40,000 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fmin_float [2018-11-10 13:09:40,000 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:09:40,000 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2018-11-10 13:09:40,004 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-10 13:09:40,004 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-10 13:09:40,004 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:09:40,034 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1a08b255-2cf8-47bb-82c6-f4a33136f914/bin-2019/uautomizer/witness.graphml [2018-11-10 13:09:40,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:09:40,034 INFO L168 Benchmark]: Toolchain (without parser) took 2840.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 953.2 MB in the beginning and 825.1 MB in the end (delta: 128.1 MB). Peak memory consumption was 273.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:40,035 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:09:40,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.88 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:40,035 INFO L168 Benchmark]: Boogie Preprocessor took 29.20 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:40,036 INFO L168 Benchmark]: RCFGBuilder took 269.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:40,036 INFO L168 Benchmark]: TraceAbstraction took 2318.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 832.0 MB in the end (delta: 285.2 MB). Peak memory consumption was 285.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:40,036 INFO L168 Benchmark]: Witness Printer took 40.99 ms. Allocated memory is still 1.2 GB. Free memory was 832.0 MB in the beginning and 825.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:40,038 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.88 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.20 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 269.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2318.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 832.0 MB in the end (delta: 285.2 MB). Peak memory consumption was 285.2 MB. Max. memory is 11.5 GB. * Witness Printer took 40.99 ms. Allocated memory is still 1.2 GB. Free memory was 832.0 MB in the beginning and 825.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: 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: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 45 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 505 SDtfs, 31 SDslu, 1466 SDs, 0 SdLazy, 204 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 469 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 11 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 26 PreInvPairs, 31 NumberOfFragments, 48 HoareAnnotationTreeSize, 26 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 466 NumberOfCodeBlocks, 466 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 455 ConstructedInterpolants, 3 QuantifiedInterpolants, 32455 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1014 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 84/84 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...