./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 03f3c06db3ef41593c24334f9583c5e77016ee88 ............................................................................................................................................................................................................................................................................................................................. 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_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 03f3c06db3ef41593c24334f9583c5e77016ee88 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:59:21,772 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:59:21,773 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:59:21,781 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:59:21,781 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:59:21,782 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:59:21,783 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:59:21,784 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:59:21,785 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:59:21,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:59:21,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:59:21,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:59:21,787 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:59:21,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:59:21,788 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:59:21,789 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:59:21,789 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:59:21,791 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:59:21,792 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:59:21,793 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:59:21,794 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:59:21,795 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:59:21,796 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:59:21,796 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:59:21,797 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:59:21,797 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:59:21,798 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:59:21,799 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:59:21,799 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:59:21,800 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:59:21,800 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:59:21,801 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:59:21,801 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:59:21,801 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:59:21,802 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:59:21,802 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:59:21,802 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 14:59:21,813 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:59:21,813 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:59:21,813 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:59:21,814 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 14:59:21,814 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:59:21,814 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:59:21,814 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:59:21,815 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:59:21,815 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:59:21,815 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:59:21,815 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:59:21,815 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:59:21,815 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:59:21,815 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:59:21,816 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:59:21,816 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:59:21,816 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:59:21,816 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:59:21,816 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:59:21,816 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:59:21,817 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:59:21,817 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:59:21,817 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:59:21,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:59:21,817 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:59:21,817 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:59:21,817 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:59:21,818 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:59:21,818 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:59:21,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:59:21,818 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_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-11-18 14:59:21,842 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:59:21,851 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:59:21,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:59:21,854 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:59:21,854 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:59:21,854 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-11-18 14:59:21,908 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data/ed24e96ba/53b74373b9894c81becd69b83e1b8886/FLAG371fc2697 [2018-11-18 14:59:22,318 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:59:22,319 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-11-18 14:59:22,324 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data/ed24e96ba/53b74373b9894c81becd69b83e1b8886/FLAG371fc2697 [2018-11-18 14:59:22,334 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data/ed24e96ba/53b74373b9894c81becd69b83e1b8886 [2018-11-18 14:59:22,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:59:22,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:59:22,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:59:22,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:59:22,341 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:59:22,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e93c8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22, skipping insertion in model container [2018-11-18 14:59:22,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:59:22,367 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:59:22,507 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:59:22,513 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:59:22,539 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:59:22,554 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:59:22,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22 WrapperNode [2018-11-18 14:59:22,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:59:22,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:59:22,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:59:22,555 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:59:22,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (1/1) ... [2018-11-18 14:59:22,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:59:22,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:59:22,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:59:22,640 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:59:22,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 14:59:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:59:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:59:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-11-18 14:59:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 14:59:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:59:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:59:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 14:59:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-11-18 14:59:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:59:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:59:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:59:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:59:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:59:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:59:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 14:59:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:59:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:59:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 14:59:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:59:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 14:59:23,092 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:59:23,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:59:23 BoogieIcfgContainer [2018-11-18 14:59:23,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:59:23,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:59:23,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:59:23,096 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:59:23,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:59:22" (1/3) ... [2018-11-18 14:59:23,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2633fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:59:23, skipping insertion in model container [2018-11-18 14:59:23,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:22" (2/3) ... [2018-11-18 14:59:23,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2633fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:59:23, skipping insertion in model container [2018-11-18 14:59:23,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:59:23" (3/3) ... [2018-11-18 14:59:23,099 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-11-18 14:59:23,106 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:59:23,113 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:59:23,126 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:59:23,152 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:59:23,152 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:59:23,152 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:59:23,152 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:59:23,153 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:59:23,153 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:59:23,153 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:59:23,153 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:59:23,153 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:59:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-18 14:59:23,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 14:59:23,173 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:59:23,174 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:59:23,176 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:59:23,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:59:23,181 INFO L82 PathProgramCache]: Analyzing trace with hash -203210899, now seen corresponding path program 1 times [2018-11-18 14:59:23,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:59:23,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:59:23,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:59:23,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:59:23,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:59:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:59:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:59:23,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:59:23,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:59:23,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:59:23,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:59:23,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:59:23,360 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-11-18 14:59:23,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:59:23,376 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-11-18 14:59:23,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:59:23,377 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 14:59:23,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:59:23,386 INFO L225 Difference]: With dead ends: 100 [2018-11-18 14:59:23,386 INFO L226 Difference]: Without dead ends: 50 [2018-11-18 14:59:23,390 INFO L604 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 [2018-11-18 14:59:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-18 14:59:23,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-18 14:59:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 14:59:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-11-18 14:59:23,417 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-11-18 14:59:23,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:59:23,418 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-11-18 14:59:23,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:59:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-11-18 14:59:23,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 14:59:23,419 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:59:23,419 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:59:23,419 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:59:23,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:59:23,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1938849963, now seen corresponding path program 1 times [2018-11-18 14:59:23,419 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:59:23,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:59:23,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:59:23,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:59:23,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:59:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:59:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:59:23,516 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:59:23,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:59:23 BoogieIcfgContainer [2018-11-18 14:59:23,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:59:23,545 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:59:23,545 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:59:23,546 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:59:23,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:59:23" (3/4) ... [2018-11-18 14:59:23,548 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:59:23,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:59:23,549 INFO L168 Benchmark]: Toolchain (without parser) took 1212.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -106.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:59:23,550 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:59:23,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.14 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 943.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:59:23,551 INFO L168 Benchmark]: Boogie Preprocessor took 85.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:59:23,551 INFO L168 Benchmark]: RCFGBuilder took 452.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:59:23,552 INFO L168 Benchmark]: TraceAbstraction took 452.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:59:23,552 INFO L168 Benchmark]: Witness Printer took 3.36 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. [2018-11-18 14:59:23,554 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 216.14 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 943.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 452.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 452.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.36 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: 131]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 130, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 47. Possible FailurePath: [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(halF_exp)=6442450970, \old(halF_exp)=6442450950, \old(huge_exp)=6442450962, \old(invln2_exp)=6442450947, \old(ln2HI_exp)=6442450945, \old(ln2HI_exp)=6442450968, \old(ln2LO_exp)=6442450969, \old(ln2LO_exp)=6442450953, \old(one_exp)=6442450958, \old(P1_exp)=6442450949, \old(P2_exp)=6442450951, \old(P3_exp)=6442450955, \old(P4_exp)=6442450957, \old(P5_exp)=6442450956, \old(twom100_exp)=6442450946, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L126] float x = -1.0f / 0.0f; VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L127] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=6442450964, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L34] float y, hi, lo, c, t; [L35] __int32_t k = 0, xsb, sx; [L36] __uint32_t hx; VAL [\old(x)=6442450964, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] [L39] FCALL ieee_float_shape_type gf_u; [L40] FCALL gf_u.value = (x) [L41] EXPR, FCALL gf_u.word [L41] (sx) = gf_u.word [L42] COND FALSE !(0) VAL [\old(x)=6442450964, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] [L43] xsb = (sx >> 31) & 1 [L44] hx = sx & 0x7fffffff VAL [\old(x)=6442450964, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] [L46] COND TRUE ((hx) > 0x7f800000L) [L47] RET return x + x; VAL [\old(x)=6442450964, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] [L127] EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=6442450963, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] [L127] float res = __ieee754_expf(x); [L130] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450963, res == 0.0f && __signbit_float(res) == 0=0, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] [L130] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L131] __VERIFIER_error() VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450967:0}, ln2LO_exp={6442450954:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450963, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 14:59:25,143 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:59:25,145 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:59:25,153 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:59:25,153 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:59:25,156 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:59:25,157 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:59:25,158 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:59:25,160 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:59:25,160 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:59:25,161 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:59:25,161 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:59:25,162 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:59:25,163 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:59:25,163 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:59:25,164 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:59:25,164 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:59:25,166 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:59:25,167 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:59:25,168 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:59:25,169 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:59:25,170 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:59:25,172 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:59:25,172 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:59:25,172 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:59:25,173 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:59:25,173 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:59:25,174 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:59:25,174 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:59:25,175 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:59:25,175 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:59:25,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:59:25,176 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:59:25,176 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:59:25,177 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:59:25,178 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:59:25,178 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 14:59:25,192 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:59:25,192 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:59:25,193 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:59:25,193 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 14:59:25,193 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:59:25,194 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:59:25,194 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:59:25,194 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:59:25,194 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:59:25,194 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:59:25,194 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:59:25,194 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:59:25,195 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:59:25,195 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:59:25,195 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:59:25,195 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:59:25,195 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:59:25,195 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:59:25,195 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:59:25,195 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:59:25,196 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:59:25,196 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:59:25,196 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:59:25,196 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:59:25,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:59:25,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:59:25,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:59:25,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:59:25,197 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 14:59:25,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:59:25,197 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:59:25,197 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:59:25,197 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_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-11-18 14:59:25,228 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:59:25,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:59:25,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:59:25,241 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:59:25,241 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:59:25,242 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-11-18 14:59:25,285 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data/42856ab7e/aedd6fe90ad74bbf8d6d97a733f405d4/FLAG7e52d7725 [2018-11-18 14:59:25,624 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:59:25,624 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-11-18 14:59:25,629 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data/42856ab7e/aedd6fe90ad74bbf8d6d97a733f405d4/FLAG7e52d7725 [2018-11-18 14:59:26,054 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/data/42856ab7e/aedd6fe90ad74bbf8d6d97a733f405d4 [2018-11-18 14:59:26,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:59:26,057 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:59:26,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:59:26,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:59:26,061 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:59:26,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b3d37e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26, skipping insertion in model container [2018-11-18 14:59:26,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:59:26,088 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:59:26,267 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:59:26,274 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:59:26,310 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:59:26,331 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:59:26,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26 WrapperNode [2018-11-18 14:59:26,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:59:26,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:59:26,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:59:26,333 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:59:26,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (1/1) ... [2018-11-18 14:59:26,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:59:26,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:59:26,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:59:26,388 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:59:26,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 14:59:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:59:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:59:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-11-18 14:59:26,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 14:59:26,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:59:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:59:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 14:59:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-11-18 14:59:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:59:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 14:59:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:59:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:59:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 14:59:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:59:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 14:59:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:59:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:59:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 14:59:26,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:59:26,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 14:59:26,634 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:59:34,712 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:59:34,744 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:59:34,887 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:59:34,940 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:59:34,952 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:59:34,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:59:34 BoogieIcfgContainer [2018-11-18 14:59:34,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:59:34,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:59:34,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:59:34,955 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:59:34,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:59:26" (1/3) ... [2018-11-18 14:59:34,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76709faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:59:34, skipping insertion in model container [2018-11-18 14:59:34,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:59:26" (2/3) ... [2018-11-18 14:59:34,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76709faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:59:34, skipping insertion in model container [2018-11-18 14:59:34,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:59:34" (3/3) ... [2018-11-18 14:59:34,960 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-11-18 14:59:34,966 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:59:34,971 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:59:34,982 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:59:35,002 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:59:35,003 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:59:35,003 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:59:35,003 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:59:35,003 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:59:35,004 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:59:35,004 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:59:35,004 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:59:35,004 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:59:35,014 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-18 14:59:35,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 14:59:35,018 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:59:35,018 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:59:35,020 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:59:35,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:59:35,023 INFO L82 PathProgramCache]: Analyzing trace with hash -203210899, now seen corresponding path program 1 times [2018-11-18 14:59:35,026 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:59:35,027 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 14:59:35,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:59:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:59:35,131 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:59:35,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:59:35,142 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:59:35,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:59:35,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:59:35,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:59:35,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:59:35,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:59:35,168 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-11-18 14:59:35,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:59:35,185 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-11-18 14:59:35,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:59:35,186 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 14:59:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:59:35,195 INFO L225 Difference]: With dead ends: 100 [2018-11-18 14:59:35,195 INFO L226 Difference]: Without dead ends: 50 [2018-11-18 14:59:35,198 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:59:35,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-18 14:59:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-18 14:59:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 14:59:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-11-18 14:59:35,238 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-11-18 14:59:35,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:59:35,239 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-11-18 14:59:35,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:59:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-11-18 14:59:35,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 14:59:35,240 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:59:35,241 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:59:35,241 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:59:35,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:59:35,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1938849963, now seen corresponding path program 1 times [2018-11-18 14:59:35,243 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:59:35,243 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 14:59:35,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:59:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:59:35,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:59:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:59:35,510 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:59:35,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:59:35,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:59:35,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:59:35,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:59:35,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:59:35,521 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-11-18 14:59:45,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:59:45,123 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2018-11-18 14:59:45,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:59:45,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-11-18 14:59:45,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:59:45,181 INFO L225 Difference]: With dead ends: 70 [2018-11-18 14:59:45,181 INFO L226 Difference]: Without dead ends: 55 [2018-11-18 14:59:45,182 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:59:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-18 14:59:45,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-11-18 14:59:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 14:59:45,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2018-11-18 14:59:45,188 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 18 [2018-11-18 14:59:45,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:59:45,189 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2018-11-18 14:59:45,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:59:45,189 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2018-11-18 14:59:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 14:59:45,189 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:59:45,190 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:59:45,190 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:59:45,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:59:45,190 INFO L82 PathProgramCache]: Analyzing trace with hash 812811919, now seen corresponding path program 1 times [2018-11-18 14:59:45,191 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:59:45,191 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 14:59:45,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:59:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:59:45,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:59:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:59:45,570 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:59:45,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:59:45,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:59:45,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:59:45,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:59:45,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:59:45,582 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2018-11-18 14:59:54,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:59:54,989 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2018-11-18 14:59:55,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:59:55,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 14:59:55,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:59:55,056 INFO L225 Difference]: With dead ends: 70 [2018-11-18 14:59:55,056 INFO L226 Difference]: Without dead ends: 55 [2018-11-18 14:59:55,056 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:59:55,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-18 14:59:55,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-11-18 14:59:55,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 14:59:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-11-18 14:59:55,062 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 20 [2018-11-18 14:59:55,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:59:55,062 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2018-11-18 14:59:55,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:59:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-11-18 14:59:55,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 14:59:55,063 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:59:55,063 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] [2018-11-18 14:59:55,063 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:59:55,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:59:55,064 INFO L82 PathProgramCache]: Analyzing trace with hash -2127858641, now seen corresponding path program 1 times [2018-11-18 14:59:55,064 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:59:55,064 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 14:59:55,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:59:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:59:55,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:59:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:59:55,263 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:59:55,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:59:55,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:59:55,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:59:55,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:59:55,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:59:55,277 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 7 states. [2018-11-18 15:00:03,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:00:03,673 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2018-11-18 15:00:03,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:00:03,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-18 15:00:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:00:03,737 INFO L225 Difference]: With dead ends: 71 [2018-11-18 15:00:03,737 INFO L226 Difference]: Without dead ends: 55 [2018-11-18 15:00:03,738 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:00:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-18 15:00:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-11-18 15:00:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 15:00:03,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-11-18 15:00:03,744 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 21 [2018-11-18 15:00:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:00:03,744 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-11-18 15:00:03,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:00:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-11-18 15:00:03,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 15:00:03,745 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:00:03,745 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] [2018-11-18 15:00:03,745 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:00:03,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:00:03,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1357762029, now seen corresponding path program 1 times [2018-11-18 15:00:03,746 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:00:03,746 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 15:00:03,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:00:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:00:03,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:00:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:00:03,886 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:00:03,894 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:00:03,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:00:03,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:00:03,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:00:03,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:00:03,895 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 6 states. [2018-11-18 15:00:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:00:06,200 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-11-18 15:00:06,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:00:06,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-18 15:00:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:00:06,201 INFO L225 Difference]: With dead ends: 57 [2018-11-18 15:00:06,201 INFO L226 Difference]: Without dead ends: 54 [2018-11-18 15:00:06,202 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:00:06,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-18 15:00:06,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-18 15:00:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-18 15:00:06,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-11-18 15:00:06,206 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 21 [2018-11-18 15:00:06,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:00:06,206 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-11-18 15:00:06,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:00:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-11-18 15:00:06,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 15:00:06,207 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:00:06,207 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:00:06,207 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:00:06,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:00:06,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1109792963, now seen corresponding path program 1 times [2018-11-18 15:00:06,208 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:00:06,208 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 15:00:06,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:00:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:00:06,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:00:07,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:00:07,062 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:00:07,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:00:07,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:00:07,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:00:07,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:00:07,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:00:07,078 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-11-18 15:00:14,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:00:14,732 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2018-11-18 15:00:14,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:00:14,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-18 15:00:14,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:00:14,794 INFO L225 Difference]: With dead ends: 84 [2018-11-18 15:00:14,795 INFO L226 Difference]: Without dead ends: 52 [2018-11-18 15:00:14,795 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:00:14,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-18 15:00:14,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-11-18 15:00:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-18 15:00:14,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-11-18 15:00:14,800 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 25 [2018-11-18 15:00:14,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:00:14,800 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-11-18 15:00:14,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:00:14,800 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-11-18 15:00:14,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:00:14,802 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:00:14,802 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] [2018-11-18 15:00:14,802 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:00:14,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:00:14,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1605300312, now seen corresponding path program 1 times [2018-11-18 15:00:14,803 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:00:14,803 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 15:00:14,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:00:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:00:15,812 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:00:15,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:00:15,892 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:00:15,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:00:15,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:00:15,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:00:15,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:00:15,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:00:15,909 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 7 states. [2018-11-18 15:00:23,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:00:23,992 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2018-11-18 15:00:24,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:00:24,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 15:00:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:00:24,059 INFO L225 Difference]: With dead ends: 63 [2018-11-18 15:00:24,059 INFO L226 Difference]: Without dead ends: 30 [2018-11-18 15:00:24,060 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:00:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-18 15:00:24,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-18 15:00:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-18 15:00:24,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-11-18 15:00:24,063 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 26 [2018-11-18 15:00:24,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:00:24,063 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-11-18 15:00:24,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:00:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-11-18 15:00:24,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 15:00:24,064 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:00:24,064 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] [2018-11-18 15:00:24,064 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:00:24,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:00:24,064 INFO L82 PathProgramCache]: Analyzing trace with hash -350269095, now seen corresponding path program 1 times [2018-11-18 15:00:24,065 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:00:24,065 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/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 [2018-11-18 15:00:24,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:00:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:00:24,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:00:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:00:24,325 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:00:24,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:00:24,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 15:00:24,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 15:00:24,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 15:00:24,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:00:24,337 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 11 states. [2018-11-18 15:00:24,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:00:24,625 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-11-18 15:00:24,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 15:00:24,625 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-11-18 15:00:24,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:00:24,625 INFO L225 Difference]: With dead ends: 30 [2018-11-18 15:00:24,626 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:00:24,626 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-11-18 15:00:24,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:00:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:00:24,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:00:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:00:24,626 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-11-18 15:00:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:00:24,627 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:00:24,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 15:00:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:00:24,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:00:24,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:00:24,718 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-11-18 15:00:24,718 INFO L425 ceAbstractionStarter]: For program point L94-1(lines 94 98) no Hoare annotation was computed. [2018-11-18 15:00:24,718 INFO L421 ceAbstractionStarter]: At program point L94-3(lines 94 98) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-11-18 15:00:24,718 INFO L425 ceAbstractionStarter]: For program point L86(lines 86 90) no Hoare annotation was computed. [2018-11-18 15:00:24,718 INFO L425 ceAbstractionStarter]: For program point L86-2(lines 79 92) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 33 106) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point L79(lines 79 105) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L421 ceAbstractionStarter]: At program point L38-3(lines 38 42) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point L38-4(lines 38 42) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L428 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 33 106) the Hoare annotation is: true [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 70) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 33 106) no Hoare annotation was computed. [2018-11-18 15:00:24,719 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 65) no Hoare annotation was computed. [2018-11-18 15:00:24,720 INFO L425 ceAbstractionStarter]: For program point L56-2(lines 56 65) no Hoare annotation was computed. [2018-11-18 15:00:24,720 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 49) no Hoare annotation was computed. [2018-11-18 15:00:24,720 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 81 85) no Hoare annotation was computed. [2018-11-18 15:00:24,720 INFO L421 ceAbstractionStarter]: At program point L81-3(lines 81 85) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L99(lines 99 103) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L99-2(lines 92 105) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L50(lines 50 51) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L67(lines 67 70) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L67-2(lines 55 70) no Hoare annotation was computed. [2018-11-18 15:00:24,721 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 69) no Hoare annotation was computed. [2018-11-18 15:00:24,722 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:00:24,722 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:00:24,722 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:00:24,722 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:00:24,722 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:00:24,722 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:00:24,722 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:00:24,722 INFO L421 ceAbstractionStarter]: At program point L130-1(line 130) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) main_~res~0) (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) |main_#t~short20|) [2018-11-18 15:00:24,722 INFO L425 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2018-11-18 15:00:24,722 INFO L421 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-18 15:00:24,723 INFO L425 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-11-18 15:00:24,723 INFO L425 ceAbstractionStarter]: For program point L130-4(lines 130 133) no Hoare annotation was computed. [2018-11-18 15:00:24,723 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 120 136) the Hoare annotation is: true [2018-11-18 15:00:24,723 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 120 136) no Hoare annotation was computed. [2018-11-18 15:00:24,723 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2018-11-18 15:00:24,723 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 120 136) no Hoare annotation was computed. [2018-11-18 15:00:24,723 INFO L425 ceAbstractionStarter]: For program point L131(line 131) no Hoare annotation was computed. [2018-11-18 15:00:24,723 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 15:00:24,723 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 108 118) no Hoare annotation was computed. [2018-11-18 15:00:24,723 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 108 118) the Hoare annotation is: true [2018-11-18 15:00:24,724 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-11-18 15:00:24,724 INFO L421 ceAbstractionStarter]: At program point L111-3(lines 111 115) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-18 15:00:24,724 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 108 118) no Hoare annotation was computed. [2018-11-18 15:00:24,724 INFO L425 ceAbstractionStarter]: For program point L111-4(lines 111 115) no Hoare annotation was computed. [2018-11-18 15:00:24,728 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,728 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,728 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,729 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,733 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,733 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,734 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,742 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,745 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,746 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,746 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,746 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,746 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:00:24 BoogieIcfgContainer [2018-11-18 15:00:24,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:00:24,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:00:24,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:00:24,748 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:00:24,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:59:34" (3/4) ... [2018-11-18 15:00:24,752 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:00:24,756 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-11-18 15:00:24,756 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:00:24,756 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:00:24,756 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 15:00:24,763 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-11-18 15:00:24,763 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-18 15:00:24,763 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 15:00:24,764 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:00:24,764 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:00:24,782 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 15:00:24,782 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 15:00:24,783 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-11-18 15:00:24,783 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-11-18 15:00:24,806 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0d8c1e72-1639-40ea-af22-0fa1b38c38eb/bin-2019/uautomizer/witness.graphml [2018-11-18 15:00:24,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:00:24,807 INFO L168 Benchmark]: Toolchain (without parser) took 58750.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.8 MB). Free memory was 949.2 MB in the beginning and 1.2 GB in the end (delta: -228.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:00:24,808 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. [2018-11-18 15:00:24,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.22 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:00:24,809 INFO L168 Benchmark]: Boogie Preprocessor took 54.79 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:00:24,809 INFO L168 Benchmark]: RCFGBuilder took 8564.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:00:24,810 INFO L168 Benchmark]: TraceAbstraction took 49794.79 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -127.1 MB). Peak memory consumption was 291.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:00:24,810 INFO L168 Benchmark]: Witness Printer took 58.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:00:24,812 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 274.22 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.79 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8564.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 49794.79 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -127.1 MB). Peak memory consumption was 291.8 MB. Max. memory is 11.5 GB. * Witness Printer took 58.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 131]: 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: 81]: Loop Invariant [2018-11-18 15:00:24,818 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,818 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,819 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,819 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,819 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,819 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,819 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,819 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 94]: Loop Invariant [2018-11-18 15:00:24,820 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,829 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,829 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,829 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,830 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,830 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,830 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 15:00:24,830 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 49.7s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 46.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 346 SDtfs, 376 SDslu, 1199 SDs, 0 SdLazy, 319 SolverSat, 6 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 43.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 31 NumberOfFragments, 75 HoareAnnotationTreeSize, 24 FomulaSimplifications, 92 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 169 ConstructedInterpolants, 37 QuantifiedInterpolants, 23662 SizeOfPredicates, 25 NumberOfNonLiveVariables, 925 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...