./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b88866a66e040da6249cd5acf77993c03d3c500f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b88866a66e040da6249cd5acf77993c03d3c500f ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:12:55,087 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:12:55,088 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:12:55,096 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:12:55,096 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:12:55,097 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:12:55,097 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:12:55,098 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:12:55,099 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:12:55,100 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:12:55,101 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:12:55,101 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:12:55,102 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:12:55,102 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:12:55,103 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:12:55,103 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:12:55,104 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:12:55,105 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:12:55,106 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:12:55,108 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:12:55,108 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:12:55,109 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:12:55,111 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:12:55,111 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:12:55,111 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:12:55,112 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:12:55,112 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:12:55,113 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:12:55,113 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:12:55,114 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:12:55,114 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:12:55,115 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:12:55,115 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:12:55,115 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:12:55,116 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:12:55,116 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:12:55,116 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 06:12:55,126 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:12:55,126 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:12:55,127 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:12:55,127 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:12:55,127 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:12:55,128 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:12:55,128 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 06:12:55,128 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:12:55,128 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 06:12:55,128 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 06:12:55,128 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:12:55,129 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:12:55,129 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:12:55,129 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:12:55,129 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:12:55,129 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:12:55,130 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:12:55,130 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:12:55,130 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:12:55,130 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:12:55,130 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:12:55,130 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:12:55,131 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:12:55,131 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:12:55,131 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:12:55,131 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:12:55,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:12:55,131 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:12:55,131 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:12:55,132 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:12:55,132 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 06:12:55,132 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:12:55,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:12:55,132 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 06:12:55,132 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b88866a66e040da6249cd5acf77993c03d3c500f [2018-11-10 06:12:55,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:12:55,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:12:55,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:12:55,165 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:12:55,166 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:12:55,166 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-11-10 06:12:55,202 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data/d7eb526fe/c237bb30eb1541fdb325e1a2db8854b2/FLAGebb9f0b55 [2018-11-10 06:12:55,595 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:12:55,595 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-11-10 06:12:55,600 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data/d7eb526fe/c237bb30eb1541fdb325e1a2db8854b2/FLAGebb9f0b55 [2018-11-10 06:12:55,609 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data/d7eb526fe/c237bb30eb1541fdb325e1a2db8854b2 [2018-11-10 06:12:55,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:12:55,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:12:55,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:12:55,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:12:55,614 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:12:55,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d64a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55, skipping insertion in model container [2018-11-10 06:12:55,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:12:55,636 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:12:55,739 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:12:55,741 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:12:55,758 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:12:55,770 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:12:55,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55 WrapperNode [2018-11-10 06:12:55,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:12:55,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:12:55,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:12:55,772 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:12:55,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:12:55,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:12:55,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:12:55,801 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:12:55,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... [2018-11-10 06:12:55,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:12:55,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:12:55,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:12:55,868 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:12:55,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:12:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:12:55,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:12:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-10 06:12:55,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-10 06:12:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:12:55,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:12:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-10 06:12:55,914 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-10 06:12:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:12:55,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:12:56,165 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:12:56,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:12:56 BoogieIcfgContainer [2018-11-10 06:12:56,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:12:56,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:12:56,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:12:56,169 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:12:56,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:12:55" (1/3) ... [2018-11-10 06:12:56,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba3b224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:12:56, skipping insertion in model container [2018-11-10 06:12:56,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:55" (2/3) ... [2018-11-10 06:12:56,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba3b224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:12:56, skipping insertion in model container [2018-11-10 06:12:56,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:12:56" (3/3) ... [2018-11-10 06:12:56,172 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092d_true-unreach-call.c [2018-11-10 06:12:56,180 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:12:56,187 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:12:56,201 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:12:56,225 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:12:56,225 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:12:56,225 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:12:56,225 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:12:56,225 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:12:56,225 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:12:56,225 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:12:56,225 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:12:56,237 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-10 06:12:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 06:12:56,241 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:12:56,242 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:12:56,243 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:12:56,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:12:56,247 INFO L82 PathProgramCache]: Analyzing trace with hash 234814383, now seen corresponding path program 1 times [2018-11-10 06:12:56,249 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:12:56,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:12:56,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:12:56,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:12:56,279 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:12:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:12:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:12:56,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:12:56,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:12:56,343 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:12:56,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 06:12:56,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 06:12:56,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:12:56,357 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-10 06:12:56,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:12:56,374 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2018-11-10 06:12:56,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:12:56,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-10 06:12:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:12:56,382 INFO L225 Difference]: With dead ends: 76 [2018-11-10 06:12:56,382 INFO L226 Difference]: Without dead ends: 38 [2018-11-10 06:12:56,384 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:12:56,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-10 06:12:56,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-10 06:12:56,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-10 06:12:56,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-10 06:12:56,410 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2018-11-10 06:12:56,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:12:56,410 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-10 06:12:56,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 06:12:56,411 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-10 06:12:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 06:12:56,411 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:12:56,411 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:12:56,412 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:12:56,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:12:56,412 INFO L82 PathProgramCache]: Analyzing trace with hash 813150096, now seen corresponding path program 1 times [2018-11-10 06:12:56,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:12:56,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:12:56,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:12:56,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:12:56,413 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:12:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:12:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:12:56,511 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 06:12:56,525 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,525 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,526 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,526 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,526 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,526 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,527 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,527 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,527 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,527 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,527 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,528 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,528 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,528 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,528 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,528 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,529 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,529 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,529 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,529 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,530 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,530 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,530 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,530 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,531 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,531 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,531 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,531 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,532 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,532 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,532 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,532 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,532 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,533 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,533 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,533 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,533 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,533 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,534 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 06:12:56,534 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:12:56,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:12:56 BoogieIcfgContainer [2018-11-10 06:12:56,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:12:56,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:12:56,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:12:56,546 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:12:56,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:12:56" (3/4) ... [2018-11-10 06:12:56,548 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 06:12:56,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:12:56,549 INFO L168 Benchmark]: Toolchain (without parser) took 938.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -142.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-11-10 06:12:56,550 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:12:56,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.04 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:12:56,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:12:56,552 INFO L168 Benchmark]: Boogie Preprocessor took 66.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 946.8 MB in the beginning and 1.2 GB in the end (delta: -214.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-10 06:12:56,552 INFO L168 Benchmark]: RCFGBuilder took 298.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-11-10 06:12:56,552 INFO L168 Benchmark]: TraceAbstraction took 379.07 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-11-10 06:12:56,553 INFO L168 Benchmark]: Witness Printer took 2.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:12:56,555 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.04 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 946.8 MB in the beginning and 1.2 GB in the end (delta: -214.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 298.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 379.07 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=10737418245, huge_ceil=1000000000000000000000000000000] [L76] float x = -1.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L17] CALL ieee_float_shape_type gf_u; [L17] RET ieee_float_shape_type gf_u; [L18] CALL gf_u.value = (x) [L18] RET gf_u.value = (x) [L19] CALL, EXPR gf_u.word [L19] RET, EXPR gf_u.word [L19] (i0) = gf_u.word [L19] RET (i0) = gf_u.word [L20] COND FALSE !(0) VAL [huge_ceil=1000000000000000000000000000000] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [huge_ceil=1000000000000000000000000000000] [L77] EXPR ceil_float(x) VAL [ceil_float(x)=10737418241, huge_ceil=1000000000000000000000000000000, x=10737418247] [L77] float res = ceil_float(x); [L80] CALL, EXPR isinf_float(res) VAL [huge_ceil=1000000000000000000000000000000] [L58] __int32_t ix; VAL [huge_ceil=1000000000000000000000000000000] [L60] CALL ieee_float_shape_type gf_u; [L60] RET ieee_float_shape_type gf_u; [L61] CALL gf_u.value = (x) [L61] RET gf_u.value = (x) [L62] CALL, EXPR gf_u.word [L62] RET, EXPR gf_u.word [L62] (ix) = gf_u.word [L62] RET (ix) = gf_u.word [L63] COND FALSE !(0) VAL [huge_ceil=1000000000000000000000000000000] [L64] ix &= 0x7fffffff [L65] RET return ((ix) == 0x7f800000L); VAL [huge_ceil=1000000000000000000000000000000] [L80] EXPR isinf_float(res) VAL [huge_ceil=1000000000000000000000000000000, isinf_float(res)=0, res=10737418241, x=10737418247] [L80] COND TRUE !isinf_float(res) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=10737418241, x=10737418247] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 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=42occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:12:57,954 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:12:57,955 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:12:57,962 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:12:57,962 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:12:57,963 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:12:57,964 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:12:57,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:12:57,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:12:57,967 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:12:57,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:12:57,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:12:57,968 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:12:57,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:12:57,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:12:57,970 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:12:57,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:12:57,972 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:12:57,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:12:57,976 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:12:57,977 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:12:57,978 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:12:57,980 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:12:57,980 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:12:57,980 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:12:57,981 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:12:57,982 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:12:57,982 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:12:57,983 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:12:57,984 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:12:57,984 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:12:57,985 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:12:57,985 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:12:57,985 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:12:57,986 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:12:57,986 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:12:57,986 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 06:12:57,996 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:12:57,997 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:12:57,997 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:12:57,997 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:12:57,998 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:12:57,998 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:12:57,998 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:12:57,998 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:12:57,998 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:12:57,999 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:12:57,999 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:12:57,999 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:12:57,999 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:12:57,999 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:12:57,999 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:12:57,999 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 06:12:58,000 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 06:12:58,000 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:12:58,000 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:12:58,000 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:12:58,000 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:12:58,000 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:12:58,001 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:12:58,001 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:12:58,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:12:58,001 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:12:58,001 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:12:58,001 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:12:58,002 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 06:12:58,002 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:12:58,002 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 06:12:58,002 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 06:12:58,002 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_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b88866a66e040da6249cd5acf77993c03d3c500f [2018-11-10 06:12:58,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:12:58,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:12:58,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:12:58,041 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:12:58,041 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:12:58,042 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-11-10 06:12:58,079 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data/bf6efabc1/d01dc7b13578401a8d01adc092225105/FLAG491cfd5e3 [2018-11-10 06:12:58,399 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:12:58,400 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-11-10 06:12:58,405 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data/bf6efabc1/d01dc7b13578401a8d01adc092225105/FLAG491cfd5e3 [2018-11-10 06:12:58,413 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/data/bf6efabc1/d01dc7b13578401a8d01adc092225105 [2018-11-10 06:12:58,415 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:12:58,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:12:58,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:12:58,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:12:58,419 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:12:58,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69eb368e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58, skipping insertion in model container [2018-11-10 06:12:58,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:12:58,442 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:12:58,557 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:12:58,561 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:12:58,582 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:12:58,598 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:12:58,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58 WrapperNode [2018-11-10 06:12:58,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:12:58,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:12:58,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:12:58,599 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:12:58,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:12:58,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:12:58,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:12:58,632 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:12:58,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... [2018-11-10 06:12:58,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:12:58,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:12:58,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:12:58,658 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:12:58,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:12:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:12:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:12:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-10 06:12:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-10 06:12:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:12:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:12:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-10 06:12:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-10 06:12:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:12:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:12:58,881 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 06:12:59,186 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 06:12:59,230 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:12:59,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:12:59 BoogieIcfgContainer [2018-11-10 06:12:59,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:12:59,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:12:59,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:12:59,233 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:12:59,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:12:58" (1/3) ... [2018-11-10 06:12:59,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4013d8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:12:59, skipping insertion in model container [2018-11-10 06:12:59,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:12:58" (2/3) ... [2018-11-10 06:12:59,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4013d8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:12:59, skipping insertion in model container [2018-11-10 06:12:59,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:12:59" (3/3) ... [2018-11-10 06:12:59,236 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092d_true-unreach-call.c [2018-11-10 06:12:59,242 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:12:59,248 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:12:59,256 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:12:59,276 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 06:12:59,277 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:12:59,277 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:12:59,277 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:12:59,277 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:12:59,277 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:12:59,277 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:12:59,277 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:12:59,278 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:12:59,287 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-10 06:12:59,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 06:12:59,291 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:12:59,292 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:12:59,293 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:12:59,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:12:59,297 INFO L82 PathProgramCache]: Analyzing trace with hash 110332139, now seen corresponding path program 1 times [2018-11-10 06:12:59,300 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:12:59,300 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 06:12:59,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:12:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:12:59,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:12:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:12:59,378 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:12:59,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:12:59,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:12:59,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 06:12:59,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 06:12:59,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:12:59,404 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-10 06:12:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:12:59,420 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2018-11-10 06:12:59,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:12:59,421 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-10 06:12:59,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:12:59,427 INFO L225 Difference]: With dead ends: 74 [2018-11-10 06:12:59,427 INFO L226 Difference]: Without dead ends: 37 [2018-11-10 06:12:59,429 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:12:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-10 06:12:59,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-10 06:12:59,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 06:12:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-11-10 06:12:59,453 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 23 [2018-11-10 06:12:59,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:12:59,453 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-11-10 06:12:59,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 06:12:59,454 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-11-10 06:12:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 06:12:59,454 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:12:59,455 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] [2018-11-10 06:12:59,455 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:12:59,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:12:59,455 INFO L82 PathProgramCache]: Analyzing trace with hash 906826823, now seen corresponding path program 1 times [2018-11-10 06:12:59,456 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:12:59,456 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 06:12:59,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:12:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:12:59,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:13:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:13:00,114 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:13:00,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:13:00,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 06:13:00,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 06:13:00,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 06:13:00,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-10 06:13:00,125 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 11 states. [2018-11-10 06:13:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:13:01,673 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-11-10 06:13:01,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 06:13:01,674 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-10 06:13:01,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:13:01,676 INFO L225 Difference]: With dead ends: 46 [2018-11-10 06:13:01,677 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 06:13:01,677 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-10 06:13:01,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 06:13:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-10 06:13:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 06:13:01,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-10 06:13:01,685 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 25 [2018-11-10 06:13:01,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:13:01,685 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-10 06:13:01,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 06:13:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-10 06:13:01,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 06:13:01,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:13:01,687 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] [2018-11-10 06:13:01,687 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:13:01,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:13:01,688 INFO L82 PathProgramCache]: Analyzing trace with hash 613423816, now seen corresponding path program 1 times [2018-11-10 06:13:01,688 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:13:01,688 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 06:13:01,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:13:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:13:01,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:13:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:13:01,820 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:13:01,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:13:01,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 06:13:01,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 06:13:01,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 06:13:01,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 06:13:01,832 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-11-10 06:13:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:13:02,371 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-11-10 06:13:02,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 06:13:02,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-10 06:13:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:13:02,373 INFO L225 Difference]: With dead ends: 59 [2018-11-10 06:13:02,373 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 06:13:02,374 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 06:13:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 06:13:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-11-10 06:13:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:13:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-11-10 06:13:02,377 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 25 [2018-11-10 06:13:02,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:13:02,377 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-11-10 06:13:02,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 06:13:02,377 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-11-10 06:13:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 06:13:02,378 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:13:02,378 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:13:02,378 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:13:02,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:13:02,378 INFO L82 PathProgramCache]: Analyzing trace with hash -94846032, now seen corresponding path program 1 times [2018-11-10 06:13:02,378 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 06:13:02,379 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 06:13:02,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:13:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:13:02,422 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:13:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:13:02,502 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 06:13:02,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:13:02,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 06:13:02,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 06:13:02,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 06:13:02,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 06:13:02,515 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 7 states. [2018-11-10 06:13:03,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:13:03,305 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-11-10 06:13:03,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 06:13:03,306 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-10 06:13:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:13:03,306 INFO L225 Difference]: With dead ends: 42 [2018-11-10 06:13:03,306 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 06:13:03,306 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-10 06:13:03,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 06:13:03,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 06:13:03,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 06:13:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 06:13:03,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-10 06:13:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:13:03,307 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:13:03,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 06:13:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 06:13:03,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 06:13:03,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 06:13:03,359 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 06:13:03,360 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 06:13:03,360 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 06:13:03,360 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-10 06:13:03,360 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-10 06:13:03,360 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-11-10 06:13:03,360 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-11-10 06:13:03,360 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-11-10 06:13:03,361 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-11-10 06:13:03,361 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 06:13:03,361 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 06:13:03,361 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 06:13:03,361 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 06:13:03,361 INFO L425 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-11-10 06:13:03,361 INFO L421 ceAbstractionStarter]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-11-10 06:13:03,361 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-11-10 06:13:03,362 INFO L425 ceAbstractionStarter]: For program point L80-1(lines 80 83) no Hoare annotation was computed. [2018-11-10 06:13:03,362 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-11-10 06:13:03,362 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-11-10 06:13:03,362 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-11-10 06:13:03,362 INFO L425 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-11-10 06:13:03,362 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-11-10 06:13:03,362 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-10 06:13:03,362 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-10 06:13:03,363 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-10 06:13:03,363 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-10 06:13:03,363 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-10 06:13:03,363 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-10 06:13:03,363 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-10 06:13:03,363 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-10 06:13:03,363 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-10 06:13:03,363 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-10 06:13:03,363 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-11-10 06:13:03,364 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-10 06:13:03,364 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-10 06:13:03,364 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-10 06:13:03,364 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-10 06:13:03,364 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-10 06:13:03,364 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-10 06:13:03,364 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-10 06:13:03,364 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-10 06:13:03,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:13:03 BoogieIcfgContainer [2018-11-10 06:13:03,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:13:03,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:13:03,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:13:03,376 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:13:03,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:12:59" (3/4) ... [2018-11-10 06:13:03,379 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 06:13:03,385 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 06:13:03,385 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-10 06:13:03,385 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 06:13:03,386 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-10 06:13:03,390 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-11-10 06:13:03,391 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 06:13:03,391 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 06:13:03,415 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 06:13:03,415 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 06:13:03,436 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_469620be-ff4f-44c7-8a09-9f7bb8fd26b5/bin-2019/utaipan/witness.graphml [2018-11-10 06:13:03,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:13:03,437 INFO L168 Benchmark]: Toolchain (without parser) took 5020.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 950.8 MB in the beginning and 962.0 MB in the end (delta: -11.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 11.5 GB. [2018-11-10 06:13:03,437 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:13:03,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 06:13:03,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.40 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:13:03,438 INFO L168 Benchmark]: Boogie Preprocessor took 26.27 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:13:03,438 INFO L168 Benchmark]: RCFGBuilder took 572.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 934.7 MB in the beginning and 1.2 GB in the end (delta: -215.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-10 06:13:03,439 INFO L168 Benchmark]: TraceAbstraction took 4143.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 968.6 MB in the end (delta: 181.6 MB). Peak memory consumption was 181.6 MB. Max. memory is 11.5 GB. [2018-11-10 06:13:03,439 INFO L168 Benchmark]: Witness Printer took 60.60 ms. Allocated memory is still 1.2 GB. Free memory was 968.6 MB in the beginning and 962.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-10 06:13:03,440 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 181.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.40 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.27 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 572.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 934.7 MB in the beginning and 1.2 GB in the end (delta: -215.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4143.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 968.6 MB in the end (delta: 181.6 MB). Peak memory consumption was 181.6 MB. Max. memory is 11.5 GB. * Witness Printer took 60.60 ms. Allocated memory is still 1.2 GB. Free memory was 968.6 MB in the beginning and 962.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 121 SDtfs, 163 SDslu, 396 SDs, 0 SdLazy, 264 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 49 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 11 QuantifiedInterpolants, 11478 SizeOfPredicates, 26 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...