./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_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_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ..................................................................................................................................................................................................................................................................................................................... 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_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 07:11:46,115 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:11:46,116 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:11:46,123 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:11:46,123 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:11:46,124 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:11:46,125 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:11:46,125 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:11:46,126 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:11:46,127 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:11:46,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:11:46,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:11:46,128 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:11:46,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:11:46,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:11:46,130 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:11:46,131 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:11:46,132 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:11:46,133 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:11:46,134 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:11:46,135 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:11:46,135 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:11:46,137 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:11:46,137 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:11:46,137 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:11:46,138 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:11:46,138 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:11:46,138 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:11:46,139 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:11:46,140 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:11:46,140 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:11:46,140 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:11:46,141 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:11:46,141 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:11:46,141 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:11:46,142 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:11:46,142 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:11:46,149 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:11:46,149 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:11:46,150 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:11:46,150 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:11:46,151 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:11:46,151 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:11:46,151 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:11:46,151 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:11:46,151 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:11:46,151 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:11:46,151 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:11:46,152 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:11:46,152 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:11:46,152 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:11:46,152 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:11:46,152 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:11:46,152 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:11:46,152 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:11:46,153 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:11:46,153 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:11:46,153 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:11:46,153 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:11:46,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:11:46,153 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:11:46,153 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:11:46,153 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:11:46,154 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:11:46,154 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:11:46,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:11:46,154 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_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-11-10 07:11:46,179 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:11:46,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:11:46,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:11:46,191 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:11:46,191 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:11:46,191 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-11-10 07:11:46,235 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data/0818c169c/8ff6587443b44222a861daeb22dee9cf/FLAG89e49dc12 [2018-11-10 07:11:46,541 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:11:46,541 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-11-10 07:11:46,546 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data/0818c169c/8ff6587443b44222a861daeb22dee9cf/FLAG89e49dc12 [2018-11-10 07:11:46,558 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data/0818c169c/8ff6587443b44222a861daeb22dee9cf [2018-11-10 07:11:46,561 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:11:46,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:11:46,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:11:46,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:11:46,566 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:11:46,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1788b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46, skipping insertion in model container [2018-11-10 07:11:46,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:11:46,595 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:11:46,713 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:11:46,715 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:11:46,733 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:11:46,746 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:11:46,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46 WrapperNode [2018-11-10 07:11:46,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:11:46,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:11:46,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:11:46,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:11:46,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (1/1) ... [2018-11-10 07:11:46,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:11:46,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:11:46,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:11:46,777 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:11:46,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:11:46,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:11:46,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:11:46,854 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-10 07:11:46,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 07:11:46,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:11:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:11:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 07:11:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-10 07:11:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 07:11:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-10 07:11:46,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 07:11:46,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-10 07:11:47,041 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:11:47,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:47 BoogieIcfgContainer [2018-11-10 07:11:47,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:11:47,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:11:47,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:11:47,044 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:11:47,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:11:46" (1/3) ... [2018-11-10 07:11:47,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6241cf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:11:47, skipping insertion in model container [2018-11-10 07:11:47,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:46" (2/3) ... [2018-11-10 07:11:47,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6241cf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:11:47, skipping insertion in model container [2018-11-10 07:11:47,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:47" (3/3) ... [2018-11-10 07:11:47,049 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-11-10 07:11:47,056 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:11:47,061 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:11:47,070 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:11:47,095 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:11:47,096 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:11:47,096 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:11:47,096 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:11:47,096 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:11:47,097 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:11:47,097 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:11:47,097 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:11:47,097 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:11:47,112 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-11-10 07:11:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 07:11:47,116 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:11:47,117 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] [2018-11-10 07:11:47,118 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:11:47,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:11:47,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1872792536, now seen corresponding path program 1 times [2018-11-10 07:11:47,122 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:11:47,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:11:47,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:11:47,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:11:47,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:11:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:11:47,210 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 07:11:47,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:11:47,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:11:47,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:11:47,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:11:47,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:11:47,225 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2018-11-10 07:11:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:11:47,241 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2018-11-10 07:11:47,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:11:47,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-10 07:11:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:11:47,249 INFO L225 Difference]: With dead ends: 102 [2018-11-10 07:11:47,249 INFO L226 Difference]: Without dead ends: 51 [2018-11-10 07:11:47,252 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 07:11:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-10 07:11:47,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-11-10 07:11:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-10 07:11:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2018-11-10 07:11:47,276 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 22 [2018-11-10 07:11:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:11:47,277 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2018-11-10 07:11:47,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:11:47,277 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2018-11-10 07:11:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 07:11:47,277 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:11:47,278 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:11:47,278 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:11:47,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:11:47,278 INFO L82 PathProgramCache]: Analyzing trace with hash 154112062, now seen corresponding path program 1 times [2018-11-10 07:11:47,278 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:11:47,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:11:47,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:11:47,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:11:47,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:11:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:11:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:11:47,356 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:11:47,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:11:47 BoogieIcfgContainer [2018-11-10 07:11:47,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:11:47,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:11:47,374 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:11:47,374 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:11:47,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:47" (3/4) ... [2018-11-10 07:11:47,377 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:11:47,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:11:47,378 INFO L168 Benchmark]: Toolchain (without parser) took 816.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -124.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:47,379 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:11:47,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.04 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:47,380 INFO L168 Benchmark]: Boogie Preprocessor took 29.15 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:47,380 INFO L168 Benchmark]: RCFGBuilder took 264.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:47,381 INFO L168 Benchmark]: TraceAbstraction took 331.71 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:47,381 INFO L168 Benchmark]: Witness Printer took 3.23 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:47,383 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.04 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.15 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 264.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 331.71 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.23 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=132, huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L67] CALL, EXPR floor_float(x) VAL [\old(x)=134, huge_floor=1000000000000000000000000000000] [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, x=134] [L18] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=134, gf_u={130:0}, huge_floor=1000000000000000000000000000000, x=134] [L19] FCALL gf_u.value = (x) VAL [\old(x)=134, gf_u={130:0}, huge_floor=1000000000000000000000000000000, x=134] [L20] EXPR, FCALL gf_u.word VAL [\old(x)=134, gf_u={130:0}, gf_u.word=3, huge_floor=1000000000000000000000000000000, x=134] [L20] (i0) = gf_u.word VAL [(i0) = gf_u.word=135, \old(x)=134, gf_u={130:0}, gf_u.word=3, huge_floor=1000000000000000000000000000000, i0=3, x=134] [L21] COND FALSE !(0) VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, i0=3, x=134] [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L24] COND FALSE !(j0 < 23) VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L44] COND TRUE !((ix) < 0x7f800000L) [L45] RET return x + x; VAL [\old(x)=134, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=3, j0=128, x=134] [L67] EXPR floor_float(x) VAL [floor_float(x)=131, huge_floor=1000000000000000000000000000000, x=134] [L67] float res = floor_float(x); [L70] CALL, EXPR isnan_float(res) VAL [\old(x)=131, huge_floor=1000000000000000000000000000000] [L58] RET return x != x; VAL [\old(x)=131, \result=0, huge_floor=1000000000000000000000000000000, x=131] [L70] EXPR isnan_float(res) VAL [huge_floor=1000000000000000000000000000000, isnan_float(res)=0, res=131, x=134] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=131, x=134] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 55 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 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=55occurred 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 07:11:48,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:11:48,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:11:48,872 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:11:48,872 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:11:48,873 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:11:48,874 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:11:48,875 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:11:48,876 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:11:48,876 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:11:48,877 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:11:48,877 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:11:48,878 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:11:48,879 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:11:48,880 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:11:48,880 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:11:48,881 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:11:48,882 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:11:48,883 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:11:48,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:11:48,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:11:48,886 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:11:48,888 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:11:48,888 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:11:48,888 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:11:48,889 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:11:48,889 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:11:48,890 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:11:48,891 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:11:48,892 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:11:48,892 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:11:48,892 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:11:48,893 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:11:48,893 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:11:48,893 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:11:48,894 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:11:48,894 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 07:11:48,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:11:48,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:11:48,905 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:11:48,905 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:11:48,906 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:11:48,906 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:11:48,906 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:11:48,906 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:11:48,906 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:11:48,906 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:11:48,907 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:11:48,907 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:11:48,907 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:11:48,907 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:11:48,907 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:11:48,907 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:11:48,907 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:11:48,908 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:11:48,908 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:11:48,908 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:11:48,908 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:11:48,908 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:11:48,908 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:11:48,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:11:48,908 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:11:48,909 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:11:48,909 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:11:48,909 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 07:11:48,909 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:11:48,909 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:11:48,909 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:11:48,909 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_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-11-10 07:11:48,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:11:48,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:11:48,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:11:48,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:11:48,953 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:11:48,953 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-11-10 07:11:48,986 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data/50d7efbd4/98947c8e9fd84c6dafca8dafc16f86fb/FLAG764e3c2e6 [2018-11-10 07:11:49,383 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:11:49,384 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-11-10 07:11:49,388 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data/50d7efbd4/98947c8e9fd84c6dafca8dafc16f86fb/FLAG764e3c2e6 [2018-11-10 07:11:49,397 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/data/50d7efbd4/98947c8e9fd84c6dafca8dafc16f86fb [2018-11-10 07:11:49,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:11:49,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:11:49,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:11:49,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:11:49,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:11:49,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f8d760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49, skipping insertion in model container [2018-11-10 07:11:49,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:11:49,433 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:11:49,573 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:11:49,577 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:11:49,598 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:11:49,615 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:11:49,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49 WrapperNode [2018-11-10 07:11:49,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:11:49,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:11:49,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:11:49,616 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:11:49,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (1/1) ... [2018-11-10 07:11:49,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:11:49,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:11:49,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:11:49,646 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:11:49,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-10 07:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 07:11:49,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:11:49,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:11:49,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-10 07:11:49,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-10 07:11:50,034 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 07:11:50,047 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 07:11:50,336 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:11:50,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:50 BoogieIcfgContainer [2018-11-10 07:11:50,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:11:50,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:11:50,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:11:50,338 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:11:50,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:11:49" (1/3) ... [2018-11-10 07:11:50,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a59b3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:11:50, skipping insertion in model container [2018-11-10 07:11:50,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:11:49" (2/3) ... [2018-11-10 07:11:50,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a59b3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:11:50, skipping insertion in model container [2018-11-10 07:11:50,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:50" (3/3) ... [2018-11-10 07:11:50,341 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-11-10 07:11:50,347 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:11:50,352 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:11:50,362 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:11:50,382 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:11:50,382 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:11:50,382 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:11:50,383 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:11:50,383 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:11:50,383 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:11:50,383 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:11:50,383 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:11:50,383 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:11:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-11-10 07:11:50,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 07:11:50,401 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:11:50,401 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:11:50,403 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:11:50,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:11:50,407 INFO L82 PathProgramCache]: Analyzing trace with hash -418331411, now seen corresponding path program 1 times [2018-11-10 07:11:50,410 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:11:50,410 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 07:11:50,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:11:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:11:50,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:11:50,481 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 07:11:50,481 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:11:50,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:11:50,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:11:50,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:11:50,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:11:50,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:11:50,504 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-11-10 07:11:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:11:50,523 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2018-11-10 07:11:50,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:11:50,524 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-10 07:11:50,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:11:50,530 INFO L225 Difference]: With dead ends: 100 [2018-11-10 07:11:50,531 INFO L226 Difference]: Without dead ends: 50 [2018-11-10 07:11:50,533 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 07:11:50,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-10 07:11:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-10 07:11:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-10 07:11:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2018-11-10 07:11:50,564 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 21 [2018-11-10 07:11:50,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:11:50,565 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2018-11-10 07:11:50,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:11:50,565 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2018-11-10 07:11:50,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 07:11:50,566 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:11:50,566 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:11:50,567 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:11:50,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:11:50,567 INFO L82 PathProgramCache]: Analyzing trace with hash -960897078, now seen corresponding path program 1 times [2018-11-10 07:11:50,567 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:11:50,567 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 07:11:50,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:11:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:11:50,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:11:51,038 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 07:11:51,038 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:11:51,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:11:51,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 07:11:51,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 07:11:51,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 07:11:51,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:11:51,048 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 9 states. [2018-11-10 07:11:52,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:11:52,283 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-11-10 07:11:52,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 07:11:52,284 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-10 07:11:52,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:11:52,286 INFO L225 Difference]: With dead ends: 59 [2018-11-10 07:11:52,286 INFO L226 Difference]: Without dead ends: 52 [2018-11-10 07:11:52,287 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 07:11:52,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-10 07:11:52,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2018-11-10 07:11:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-10 07:11:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-11-10 07:11:52,293 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 30 [2018-11-10 07:11:52,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:11:52,294 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2018-11-10 07:11:52,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 07:11:52,294 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-11-10 07:11:52,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 07:11:52,295 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:11:52,295 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:11:52,299 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:11:52,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:11:52,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1157410583, now seen corresponding path program 1 times [2018-11-10 07:11:52,299 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:11:52,299 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 07:11:52,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:11:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:11:52,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:11:52,441 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 07:11:52,442 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:11:52,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:11:52,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 07:11:52,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 07:11:52,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 07:11:52,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:11:52,456 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 9 states. [2018-11-10 07:11:53,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:11:53,025 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2018-11-10 07:11:53,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 07:11:53,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-10 07:11:53,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:11:53,027 INFO L225 Difference]: With dead ends: 57 [2018-11-10 07:11:53,027 INFO L226 Difference]: Without dead ends: 49 [2018-11-10 07:11:53,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 07:11:53,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-10 07:11:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-10 07:11:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-10 07:11:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-11-10 07:11:53,031 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 30 [2018-11-10 07:11:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:11:53,031 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-11-10 07:11:53,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 07:11:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-11-10 07:11:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 07:11:53,032 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:11:53,032 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:11:53,032 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:11:53,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:11:53,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1200312195, now seen corresponding path program 1 times [2018-11-10 07:11:53,033 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:11:53,033 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 07:11:53,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:11:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:11:53,092 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:11:53,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:11:53,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:11:53,126 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:11:53,129 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:11:53,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:11:53,136 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-10 07:11:53,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-10 07:11:53,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-10 07:11:53,155 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:11:53,157 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:11:53,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:11:53,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-10 07:11:53,276 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 07:11:53,276 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:11:53,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:11:53,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 07:11:53,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 07:11:53,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 07:11:53,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:11:53,290 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 9 states. [2018-11-10 07:11:54,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:11:54,167 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-11-10 07:11:54,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 07:11:54,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-11-10 07:11:54,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:11:54,169 INFO L225 Difference]: With dead ends: 63 [2018-11-10 07:11:54,169 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:11:54,169 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-11-10 07:11:54,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:11:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:11:54,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:11:54,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:11:54,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-11-10 07:11:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:11:54,170 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:11:54,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 07:11:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:11:54,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:11:54,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:11:54,230 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-11-10 07:11:54,230 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-11-10 07:11:54,230 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-11-10 07:11:54,230 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:11:54,230 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L52-1(line 52) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-10 07:11:54,231 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point L49-2(lines 14 55) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 14 55) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2018-11-10 07:11:54,232 INFO L425 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-11-10 07:11:54,233 INFO L425 ceAbstractionStarter]: For program point L50-1(line 50) no Hoare annotation was computed. [2018-11-10 07:11:54,233 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-10 07:11:54,233 INFO L425 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2018-11-10 07:11:54,233 INFO L425 ceAbstractionStarter]: For program point L50-3(line 50) no Hoare annotation was computed. [2018-11-10 07:11:54,233 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-11-10 07:11:54,233 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-11-10 07:11:54,233 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-11-10 07:11:54,233 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2018-11-10 07:11:54,234 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 14 55) no Hoare annotation was computed. [2018-11-10 07:11:54,234 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-11-10 07:11:54,234 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 14 55) the Hoare annotation is: true [2018-11-10 07:11:54,234 INFO L425 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-11-10 07:11:54,234 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 07:11:54,234 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-10 07:11:54,235 INFO L425 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-11-10 07:11:54,236 INFO L425 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-11-10 07:11:54,236 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-10 07:11:54,236 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:11:54,236 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:11:54,236 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:11:54,236 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:11:54,236 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 60 76) the Hoare annotation is: true [2018-11-10 07:11:54,236 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 60 76) no Hoare annotation was computed. [2018-11-10 07:11:54,237 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2018-11-10 07:11:54,237 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 60 76) no Hoare annotation was computed. [2018-11-10 07:11:54,237 INFO L425 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-11-10 07:11:54,237 INFO L421 ceAbstractionStarter]: At program point L70(line 70) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-11-10 07:11:54,237 INFO L425 ceAbstractionStarter]: For program point L70-1(lines 70 73) no Hoare annotation was computed. [2018-11-10 07:11:54,237 INFO L421 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-11-10 07:11:54,237 INFO L425 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-11-10 07:11:54,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:11:54 BoogieIcfgContainer [2018-11-10 07:11:54,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:11:54,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:11:54,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:11:54,249 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:11:54,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:11:50" (3/4) ... [2018-11-10 07:11:54,253 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:11:54,258 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 07:11:54,258 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:11:54,258 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-11-10 07:11:54,259 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:11:54,263 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-10 07:11:54,263 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 07:11:54,263 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 07:11:54,282 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 07:11:54,298 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1c99cf6d-ad75-4129-abb3-2431e016b08c/bin-2019/uautomizer/witness.graphml [2018-11-10 07:11:54,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:11:54,298 INFO L168 Benchmark]: Toolchain (without parser) took 4898.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 949.7 MB in the beginning and 897.0 MB in the end (delta: 52.7 MB). Peak memory consumption was 179.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:54,299 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:11:54,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:54,300 INFO L168 Benchmark]: Boogie Preprocessor took 29.24 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:11:54,300 INFO L168 Benchmark]: RCFGBuilder took 690.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:54,300 INFO L168 Benchmark]: TraceAbstraction took 3912.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.9 MB in the end (delta: 184.2 MB). Peak memory consumption was 184.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:54,301 INFO L168 Benchmark]: Witness Printer took 48.78 ms. Allocated memory is still 1.2 GB. Free memory was 903.9 MB in the beginning and 897.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:11:54,303 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 214.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.24 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 690.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3912.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.9 MB in the end (delta: 184.2 MB). Peak memory consumption was 184.2 MB. Max. memory is 11.5 GB. * Witness Printer took 48.78 ms. Allocated memory is still 1.2 GB. Free memory was 903.9 MB in the beginning and 897.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 184 SDtfs, 155 SDslu, 707 SDs, 0 SdLazy, 275 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 119 ConstructedInterpolants, 16 QuantifiedInterpolants, 25014 SizeOfPredicates, 17 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 33 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...