./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 14218179970cdda4c2f749c75b7f78aa74dcc86b ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 14218179970cdda4c2f749c75b7f78aa74dcc86b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:28,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:28,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:28,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:28,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:28,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:28,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:28,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:28,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:28,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:28,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:28,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:28,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:28,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:28,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:28,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:28,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:28,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:28,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:28,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:28,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:28,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:28,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:28,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:28,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:28,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:28,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:28,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:28,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:28,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:28,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:28,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:28,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:28,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:28,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:28,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:28,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:28,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:28,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:28,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:28,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:28,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:56:28,144 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:28,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:28,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:28,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:28,145 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:28,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:28,146 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:28,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:28,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:28,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:28,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:28,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:28,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:28,147 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:28,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:28,148 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:28,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:28,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:28,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:28,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:28,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:28,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:28,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:28,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:28,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:28,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:28,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:28,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:28,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2019-10-22 08:56:28,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:28,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:28,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:28,193 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:28,193 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:28,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-10-22 08:56:28,241 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data/ff2513f0b/1b04771a1db342f383d81484cf59aee3/FLAGd6a9e3698 [2019-10-22 08:56:28,628 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:28,629 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-10-22 08:56:28,636 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data/ff2513f0b/1b04771a1db342f383d81484cf59aee3/FLAGd6a9e3698 [2019-10-22 08:56:28,645 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data/ff2513f0b/1b04771a1db342f383d81484cf59aee3 [2019-10-22 08:56:28,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:28,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:28,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:28,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:28,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:28,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7744b073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28, skipping insertion in model container [2019-10-22 08:56:28,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,663 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:28,685 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:28,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:28,956 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:28,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:29,014 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:29,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29 WrapperNode [2019-10-22 08:56:29,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:29,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:29,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:29,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:29,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:29,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:29,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:29,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:29,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... [2019-10-22 08:56:29,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:29,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:29,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:29,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:29,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 [2019-10-22 08:56:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:56:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 08:56:29,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 08:56:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:56:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-10-22 08:56:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:29,539 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:29,540 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-10-22 08:56:29,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:29 BoogieIcfgContainer [2019-10-22 08:56:29,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:29,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:29,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:29,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:29,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:28" (1/3) ... [2019-10-22 08:56:29,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ca771f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:29, skipping insertion in model container [2019-10-22 08:56:29,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:29" (2/3) ... [2019-10-22 08:56:29,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ca771f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:29, skipping insertion in model container [2019-10-22 08:56:29,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:29" (3/3) ... [2019-10-22 08:56:29,547 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2019-10-22 08:56:29,556 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:29,565 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:29,577 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:29,597 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:29,597 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:29,597 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:29,597 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:29,597 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:29,597 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:29,598 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:29,598 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-10-22 08:56:29,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:56:29,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:29,615 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:29,617 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:29,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:29,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2019-10-22 08:56:29,626 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:29,626 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295933564] [2019-10-22 08:56:29,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:29,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:29,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:29,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295933564] [2019-10-22 08:56:29,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:29,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:56:29,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788918010] [2019-10-22 08:56:29,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:56:29,737 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:29,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:56:29,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:56:29,747 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-10-22 08:56:29,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:29,762 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2019-10-22 08:56:29,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:56:29,764 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-22 08:56:29,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:29,774 INFO L225 Difference]: With dead ends: 72 [2019-10-22 08:56:29,774 INFO L226 Difference]: Without dead ends: 34 [2019-10-22 08:56:29,777 INFO L600 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 [2019-10-22 08:56:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-22 08:56:29,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-22 08:56:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-22 08:56:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-10-22 08:56:29,814 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2019-10-22 08:56:29,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:29,814 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-10-22 08:56:29,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:56:29,814 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-10-22 08:56:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:56:29,815 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:29,815 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:29,815 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:29,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:29,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2019-10-22 08:56:29,816 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:29,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362397702] [2019-10-22 08:56:29,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:29,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:29,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:29,939 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:29,939 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:56:29,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:29 BoogieIcfgContainer [2019-10-22 08:56:29,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:29,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:29,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:29,978 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:29,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:29" (3/4) ... [2019-10-22 08:56:29,981 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:56:29,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:29,983 INFO L168 Benchmark]: Toolchain (without parser) took 1332.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,983 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:29,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -205.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.65 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. [2019-10-22 08:56:29,985 INFO L168 Benchmark]: Boogie Preprocessor took 67.09 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,986 INFO L168 Benchmark]: RCFGBuilder took 410.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,986 INFO L168 Benchmark]: TraceAbstraction took 435.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,987 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:29,990 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -205.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.65 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. * Boogie Preprocessor took 67.09 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 410.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 435.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L116] float x = 0.0f / 0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float res = __ieee754_expf(x); [L13] return x != x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] COND TRUE !isnan_float(res) [L121] __VERIFIER_error() VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-cad4683 [2019-10-22 08:56:31,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:31,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:31,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-22 08:56:31,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:31,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:31,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:31,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:31,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:31,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:31,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:31,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:31,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:31,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:31,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:31,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:32,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-22 08:56:32,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:32,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:32,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:32,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:32,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:32,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:32,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:32,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:32,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:32,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:32,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:32,020 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:56:32,035 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:32,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:32,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:32,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:32,040 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:32,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:32,040 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:32,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:32,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:32,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:32,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:32,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:32,041 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:56:32,041 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:56:32,041 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:32,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:32,041 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:32,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:32,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:32,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:32,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:32,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:32,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:32,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:32,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:32,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:32,043 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:56:32,043 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:56:32,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:32,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:56:32,043 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2019-10-22 08:56:32,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:32,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:32,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:32,096 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:32,096 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:32,097 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-10-22 08:56:32,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data/978d7099f/76b6a584ecdd47f6b53e16bcfd1f6c4b/FLAG3471479fb [2019-10-22 08:56:32,513 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:32,517 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2019-10-22 08:56:32,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data/978d7099f/76b6a584ecdd47f6b53e16bcfd1f6c4b/FLAG3471479fb [2019-10-22 08:56:32,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/data/978d7099f/76b6a584ecdd47f6b53e16bcfd1f6c4b [2019-10-22 08:56:32,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:32,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:32,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:32,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:32,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:32,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:32" (1/1) ... [2019-10-22 08:56:32,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a99faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:32, skipping insertion in model container [2019-10-22 08:56:32,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:32" (1/1) ... [2019-10-22 08:56:32,922 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:32,939 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:33,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:33,133 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:33,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:33,267 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:33,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33 WrapperNode [2019-10-22 08:56:33,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:33,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:33,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:33,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:33,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:33,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:33,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:33,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:33,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... [2019-10-22 08:56:33,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:33,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:33,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:33,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:33,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 [2019-10-22 08:56:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-10-22 08:56:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 08:56:33,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:56:33,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:33,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:33,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 08:56:33,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:56:33,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:41,139 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:41,140 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-10-22 08:56:41,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:41 BoogieIcfgContainer [2019-10-22 08:56:41,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:41,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:41,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:41,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:41,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:32" (1/3) ... [2019-10-22 08:56:41,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60720b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:41, skipping insertion in model container [2019-10-22 08:56:41,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:33" (2/3) ... [2019-10-22 08:56:41,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60720b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:41, skipping insertion in model container [2019-10-22 08:56:41,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:41" (3/3) ... [2019-10-22 08:56:41,148 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2019-10-22 08:56:41,158 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:41,167 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:41,175 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:41,195 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:41,195 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:41,195 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:41,195 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:41,196 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:41,196 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:41,196 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:41,196 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:41,206 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-10-22 08:56:41,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:56:41,211 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:41,212 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:41,213 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:41,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:41,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2019-10-22 08:56:41,225 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:41,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362512012] [2019-10-22 08:56:41,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 [2019-10-22 08:56:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:41,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 08:56:41,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:41,364 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:56:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:41,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362512012] [2019-10-22 08:56:41,368 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:41,369 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 08:56:41,369 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366348789] [2019-10-22 08:56:41,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:56:41,373 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:56:41,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:56:41,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:56:41,387 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-10-22 08:56:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:41,405 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2019-10-22 08:56:41,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:56:41,407 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-22 08:56:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:41,416 INFO L225 Difference]: With dead ends: 72 [2019-10-22 08:56:41,417 INFO L226 Difference]: Without dead ends: 34 [2019-10-22 08:56:41,419 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:56:41,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-22 08:56:41,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-22 08:56:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-22 08:56:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-10-22 08:56:41,451 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2019-10-22 08:56:41,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:41,451 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-10-22 08:56:41,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:56:41,452 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-10-22 08:56:41,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:56:41,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:41,452 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:41,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:56:41,660 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:41,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:41,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2019-10-22 08:56:41,661 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:41,662 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823615349] [2019-10-22 08:56:41,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 [2019-10-22 08:56:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:41,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:56:41,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:41,840 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:56:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:41,943 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823615349] [2019-10-22 08:56:41,943 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:41,943 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-10-22 08:56:41,943 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271088244] [2019-10-22 08:56:41,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:56:41,945 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:56:41,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:56:41,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:56:41,946 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 8 states. [2019-10-22 08:56:55,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:55,875 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2019-10-22 08:56:55,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:56:55,876 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-10-22 08:56:55,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:55,877 INFO L225 Difference]: With dead ends: 60 [2019-10-22 08:56:55,877 INFO L226 Difference]: Without dead ends: 52 [2019-10-22 08:56:55,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:56:55,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-22 08:56:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 36. [2019-10-22 08:56:55,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-22 08:56:55,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2019-10-22 08:56:55,884 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 10 [2019-10-22 08:56:55,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:55,884 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2019-10-22 08:56:55,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:56:55,884 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2019-10-22 08:56:55,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 08:56:55,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:55,885 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:56,086 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 08:56:56,086 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:56,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:56,086 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2019-10-22 08:56:56,087 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:56:56,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015124260] [2019-10-22 08:56:56,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/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 [2019-10-22 08:56:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:56,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:56:56,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:56,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:56,291 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:56:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:56,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015124260] [2019-10-22 08:56:56,446 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:56,446 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 10 [2019-10-22 08:56:56,446 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141909501] [2019-10-22 08:56:56,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 08:56:56,447 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:56:56,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 08:56:56,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:56:56,447 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 10 states. [2019-10-22 08:56:56,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:56,512 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2019-10-22 08:56:56,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:56,513 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-10-22 08:56:56,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:56,513 INFO L225 Difference]: With dead ends: 36 [2019-10-22 08:56:56,513 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:56:56,514 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:56:56,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:56:56,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:56:56,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:56:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:56:56,514 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-10-22 08:56:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:56,515 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:56,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 08:56:56,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:56,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:56:56,715 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 08:56:56,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:56:56,797 INFO L443 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-10-22 08:56:56,797 INFO L443 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-10-22 08:56:56,797 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-10-22 08:56:56,797 INFO L443 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-10-22 08:56:56,797 INFO L443 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-10-22 08:56:56,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:56:56,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:56:56,797 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-10-22 08:56:56,798 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-10-22 08:56:56,798 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-10-22 08:56:56,798 INFO L443 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-10-22 08:56:56,798 INFO L443 ceAbstractionStarter]: For program point L120(lines 120 123) no Hoare annotation was computed. [2019-10-22 08:56:56,798 INFO L439 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2019-10-22 08:56:56,798 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-10-22 08:56:56,798 INFO L443 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-10-22 08:56:56,798 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-10-22 08:56:56,799 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-10-22 08:56:56,799 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-10-22 08:56:56,799 INFO L443 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-10-22 08:56:56,799 INFO L443 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-10-22 08:56:56,799 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-10-22 08:56:56,799 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 08:56:56,799 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-10-22 08:56:56,799 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-10-22 08:56:56,799 INFO L439 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2019-10-22 08:56:56,801 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-10-22 08:56:56,801 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (= ULTIMATE.start___ieee754_expf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-10-22 08:56:56,801 INFO L443 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-10-22 08:56:56,801 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:56:56,801 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-10-22 08:56:56,801 INFO L446 ceAbstractionStarter]: At program point L125(lines 111 126) the Hoare annotation is: true [2019-10-22 08:56:56,801 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-10-22 08:56:56,801 INFO L443 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-10-22 08:56:56,802 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2019-10-22 08:56:56,802 INFO L443 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-10-22 08:56:56,802 INFO L443 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-10-22 08:56:56,802 INFO L439 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-10-22 08:56:56,814 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,815 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,815 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,816 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,818 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,820 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,820 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,820 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,821 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,821 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,822 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,823 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:56 BoogieIcfgContainer [2019-10-22 08:56:56,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:56,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:56,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:56,829 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:56,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:41" (3/4) ... [2019-10-22 08:56:56,834 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:56:56,853 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 08:56:56,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 08:56:56,883 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-10-22 08:56:56,884 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-10-22 08:56:56,923 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e3db5bf1-b0c2-477d-a1ce-0dcf4741b5ec/bin/uautomizer/witness.graphml [2019-10-22 08:56:56,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:56,925 INFO L168 Benchmark]: Toolchain (without parser) took 24016.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 948.3 MB in the beginning and 948.3 MB in the end (delta: 52.6 kB). Peak memory consumption was 121.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:56,926 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:56,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:56,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:56,926 INFO L168 Benchmark]: Boogie Preprocessor took 44.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:56,927 INFO L168 Benchmark]: RCFGBuilder took 7790.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:56,927 INFO L168 Benchmark]: TraceAbstraction took 15686.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.0 MB in the end (delta: 122.0 MB). Peak memory consumption was 122.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:56,927 INFO L168 Benchmark]: Witness Printer took 94.68 ms. Allocated memory is still 1.2 GB. Free memory was 955.0 MB in the beginning and 948.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:56,929 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 7790.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15686.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.0 MB in the end (delta: 122.0 MB). Peak memory consumption was 122.0 MB. Max. memory is 11.5 GB. * Witness Printer took 94.68 ms. Allocated memory is still 1.2 GB. Free memory was 955.0 MB in the beginning and 948.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-10-22 08:56:56,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 41]: Loop Invariant [2019-10-22 08:56:56,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: Loop Invariant [2019-10-22 08:56:56,935 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,935 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,935 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,935 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 08:56:56,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 15.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 47 SDslu, 146 SDs, 0 SdLazy, 76 SolverSat, 2 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 50 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 1 QuantifiedInterpolants, 2577 SizeOfPredicates, 12 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...