./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3677de697f2e465cd606b8f0d05818e7deafda1 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3677de697f2e465cd606b8f0d05818e7deafda1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:30:21,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:30:21,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:30:21,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:30:21,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:30:21,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:30:21,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:30:21,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:30:21,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:30:21,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:30:21,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:30:21,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:30:21,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:30:21,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:30:21,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:30:21,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:30:21,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:30:21,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:30:21,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:30:21,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:30:21,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:30:21,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:30:21,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:30:21,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:30:21,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:30:21,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:30:21,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:30:21,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:30:21,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:30:21,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:30:21,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:30:21,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:30:21,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:30:21,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:30:21,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:30:21,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:30:21,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:30:21,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:30:21,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:30:21,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:30:21,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:30:21,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:30:21,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:30:21,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:30:21,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:30:21,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:30:21,946 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:30:21,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:30:21,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:30:21,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:30:21,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:30:21,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:30:21,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:30:21,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:30:21,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:30:21,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:30:21,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:30:21,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:30:21,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:30:21,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:30:21,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:30:21,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:30:21,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:30:21,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:30:21,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:30:21,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:30:21,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:30:21,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:30:21,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:30:21,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:30:21,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:30:21,952 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(reach_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 -> e3677de697f2e465cd606b8f0d05818e7deafda1 [2020-10-20 00:30:22,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:30:22,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:30:22,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:30:22,224 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:30:22,226 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:30:22,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2020-10-20 00:30:22,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a15fd1ca/360e41e732584e19acdfe7c7baeec2f2/FLAGc5b1ba5c0 [2020-10-20 00:30:22,838 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:30:22,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2020-10-20 00:30:22,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a15fd1ca/360e41e732584e19acdfe7c7baeec2f2/FLAGc5b1ba5c0 [2020-10-20 00:30:23,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a15fd1ca/360e41e732584e19acdfe7c7baeec2f2 [2020-10-20 00:30:23,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:30:23,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:30:23,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:30:23,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:30:23,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:30:23,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19239cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23, skipping insertion in model container [2020-10-20 00:30:23,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:30:23,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:30:23,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:30:23,581 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:30:23,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:30:23,647 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:30:23,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23 WrapperNode [2020-10-20 00:30:23,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:30:23,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:30:23,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:30:23,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:30:23,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:30:23,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:30:23,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:30:23,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:30:23,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... [2020-10-20 00:30:23,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:30:23,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:30:23,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:30:23,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:30:23,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:30:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:30:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:30:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:30:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:30:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:30:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:30:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:30:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:30:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-20 00:30:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:30:24,332 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:30:24,333 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:30:24,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:24 BoogieIcfgContainer [2020-10-20 00:30:24,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:30:24,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:30:24,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:30:24,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:30:24,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:30:23" (1/3) ... [2020-10-20 00:30:24,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d1c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:24, skipping insertion in model container [2020-10-20 00:30:24,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:23" (2/3) ... [2020-10-20 00:30:24,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d1c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:24, skipping insertion in model container [2020-10-20 00:30:24,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:24" (3/3) ... [2020-10-20 00:30:24,343 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2020-10-20 00:30:24,354 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:30:24,361 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:30:24,375 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:30:24,400 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:30:24,400 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:30:24,401 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:30:24,401 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:30:24,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:30:24,401 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:30:24,401 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:30:24,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:30:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-20 00:30:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:30:24,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:24,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:24,425 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:24,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:24,431 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2020-10-20 00:30:24,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:30:24,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13976447] [2020-10-20 00:30:24,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:30:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:24,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:24,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13976447] [2020-10-20 00:30:24,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:24,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:30:24,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035113652] [2020-10-20 00:30:24,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:30:24,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:30:24,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:30:24,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:30:24,613 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-10-20 00:30:24,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:24,633 INFO L93 Difference]: Finished difference Result 80 states and 129 transitions. [2020-10-20 00:30:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:30:24,635 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-20 00:30:24,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:24,646 INFO L225 Difference]: With dead ends: 80 [2020-10-20 00:30:24,647 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 00:30:24,650 INFO L677 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 [2020-10-20 00:30:24,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 00:30:24,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 00:30:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 00:30:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-10-20 00:30:24,683 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2020-10-20 00:30:24,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:24,684 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-10-20 00:30:24,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:30:24,684 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-10-20 00:30:24,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:30:24,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:24,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:24,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:30:24,686 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:24,686 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2020-10-20 00:30:24,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:30:24,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454432974] [2020-10-20 00:30:24,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:30:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:30:24,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:30:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:30:24,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:30:24,876 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:30:24,877 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:30:24,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:30:24,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:30:24 BoogieIcfgContainer [2020-10-20 00:30:24,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:30:24,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:30:24,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:30:24,967 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:30:24,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:24" (3/4) ... [2020-10-20 00:30:24,974 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:30:24,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:30:24,979 INFO L168 Benchmark]: Toolchain (without parser) took 1734.82 ms. Allocated memory was 42.5 MB in the beginning and 49.3 MB in the end (delta: 6.8 MB). Free memory was 22.3 MB in the beginning and 18.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:24,980 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 32.0 MB. Free memory was 9.2 MB in the beginning and 9.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:30:24,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.92 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 21.4 MB in the beginning and 21.8 MB in the end (delta: -421.5 kB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:24,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 45.1 MB. Free memory was 21.8 MB in the beginning and 19.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:24,983 INFO L168 Benchmark]: Boogie Preprocessor took 38.94 ms. Allocated memory is still 45.1 MB. Free memory was 19.5 MB in the beginning and 17.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:24,985 INFO L168 Benchmark]: RCFGBuilder took 594.86 ms. Allocated memory was 45.1 MB in the beginning and 49.3 MB in the end (delta: 4.2 MB). Free memory was 17.3 MB in the beginning and 32.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:24,986 INFO L168 Benchmark]: TraceAbstraction took 630.16 ms. Allocated memory is still 49.3 MB. Free memory was 31.4 MB in the beginning and 19.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:24,991 INFO L168 Benchmark]: Witness Printer took 8.34 ms. Allocated memory is still 49.3 MB. Free memory was 19.2 MB in the beginning and 18.8 MB in the end (delta: 380.5 kB). Peak memory consumption was 380.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:30:25,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 32.0 MB. Free memory was 9.2 MB in the beginning and 9.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 398.92 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 21.4 MB in the beginning and 21.8 MB in the end (delta: -421.5 kB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 45.1 MB. Free memory was 21.8 MB in the beginning and 19.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 38.94 ms. Allocated memory is still 45.1 MB. Free memory was 19.5 MB in the beginning and 17.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 594.86 ms. Allocated memory was 45.1 MB in the beginning and 49.3 MB in the end (delta: 4.2 MB). Free memory was 17.3 MB in the beginning and 32.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 630.16 ms. Allocated memory is still 49.3 MB. Free memory was 31.4 MB in the beginning and 19.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. * Witness Printer took 8.34 ms. Allocated memory is still 49.3 MB. Free memory was 19.2 MB in the beginning and 18.8 MB in the end (delta: 380.5 kB). Peak memory consumption was 380.5 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x == 0.0 || x == -0.0 [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_exp(x); [L146] COND TRUE res != 1.0 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_0832.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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, ACCELERATED_INTERPOLATION: 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 0.1.25-9a8b2e8 [2020-10-20 00:30:27,166 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-10-20 00:30:27,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:30:27,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:30:27,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:30:27,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:30:27,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:30:27,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:30:27,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:30:27,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:30:27,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:30:27,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:30:27,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:30:27,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:30:27,305 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:30:27,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:30:27,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:30:27,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:30:27,307 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:30:27,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:30:27,307 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:30:27,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:30:27,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:30:27,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:30:27,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:30:27,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:30:27,309 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:30:27,309 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:30:27,309 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:30:27,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:30:27,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:30:27,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:30:27,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:30:27,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:30:27,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:30:27,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:30:27,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:30:27,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:30:27,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:30:27,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:30:27,311 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:30:27,311 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:30:27,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:30:27,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:30:27,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:30:27,312 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(reach_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 -> e3677de697f2e465cd606b8f0d05818e7deafda1 [2020-10-20 00:30:27,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:30:27,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:30:27,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:30:27,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:30:27,530 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:30:27,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2020-10-20 00:30:27,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42340a96/c914e8b27931464ea15391bca6ccf163/FLAGa4b418408 [2020-10-20 00:30:28,090 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:30:28,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2020-10-20 00:30:28,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42340a96/c914e8b27931464ea15391bca6ccf163/FLAGa4b418408 [2020-10-20 00:30:28,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42340a96/c914e8b27931464ea15391bca6ccf163 [2020-10-20 00:30:28,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:30:28,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:30:28,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:30:28,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:30:28,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:30:28,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1175257b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28, skipping insertion in model container [2020-10-20 00:30:28,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:30:28,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:30:28,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:30:28,782 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:30:28,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:30:28,853 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:30:28,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28 WrapperNode [2020-10-20 00:30:28,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:30:28,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:30:28,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:30:28,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:30:28,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:30:28,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:30:28,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:30:28,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:30:28,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... [2020-10-20 00:30:28,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:30:28,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:30:28,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:30:28,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:30:28,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:30:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:30:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:30:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:30:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:30:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-20 00:30:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:30:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:30:29,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:30:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:30:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:30:41,404 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:30:41,405 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:30:41,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:41 BoogieIcfgContainer [2020-10-20 00:30:41,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:30:41,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:30:41,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:30:41,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:30:41,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:30:28" (1/3) ... [2020-10-20 00:30:41,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3461a9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:41, skipping insertion in model container [2020-10-20 00:30:41,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:30:28" (2/3) ... [2020-10-20 00:30:41,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3461a9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:41, skipping insertion in model container [2020-10-20 00:30:41,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:41" (3/3) ... [2020-10-20 00:30:41,415 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2020-10-20 00:30:41,427 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:30:41,434 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:30:41,444 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:30:41,476 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:30:41,476 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:30:41,476 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:30:41,476 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:30:41,477 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:30:41,477 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:30:41,477 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:30:41,477 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:30:41,489 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-10-20 00:30:41,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:30:41,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:41,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:41,496 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:41,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:41,502 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2020-10-20 00:30:41,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:41,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490711039] [2020-10-20 00:30:41,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:30:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:41,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:30:41,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:30:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:41,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:30:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:41,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490711039] [2020-10-20 00:30:41,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:41,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:30:41,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458227852] [2020-10-20 00:30:41,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:30:41,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:30:41,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:30:41,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:30:41,977 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-10-20 00:30:41,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:41,997 INFO L93 Difference]: Finished difference Result 80 states and 129 transitions. [2020-10-20 00:30:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:30:41,999 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-20 00:30:42,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:42,010 INFO L225 Difference]: With dead ends: 80 [2020-10-20 00:30:42,010 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 00:30:42,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:30:42,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 00:30:42,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 00:30:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 00:30:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-10-20 00:30:42,047 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2020-10-20 00:30:42,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:42,047 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-10-20 00:30:42,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:30:42,047 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-10-20 00:30:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:30:42,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:42,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:42,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:30:42,256 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:42,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:42,257 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2020-10-20 00:30:42,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:42,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852113974] [2020-10-20 00:30:42,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:30:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:42,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:30:42,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:30:42,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:42,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:30:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:42,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852113974] [2020-10-20 00:30:42,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:42,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:30:42,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630951704] [2020-10-20 00:30:42,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:30:42,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:30:42,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:30:42,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:30:42,833 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 8 states. [2020-10-20 00:30:54,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:54,024 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2020-10-20 00:30:54,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:30:54,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-20 00:30:54,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:54,874 INFO L225 Difference]: With dead ends: 61 [2020-10-20 00:30:54,875 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 00:30:54,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:30:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 00:30:54,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2020-10-20 00:30:54,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 00:30:54,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-10-20 00:30:54,881 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2020-10-20 00:30:54,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:54,882 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-10-20 00:30:54,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:30:54,882 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-10-20 00:30:54,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 00:30:54,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:54,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:55,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:30:55,085 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:55,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:55,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2020-10-20 00:30:55,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:55,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392560961] [2020-10-20 00:30:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 00:30:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:55,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:30:55,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:30:56,036 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-10-20 00:30:56,644 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-10-20 00:30:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:56,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:30:58,560 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-20 00:30:58,565 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-20 00:31:01,625 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2020-10-20 00:31:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:31:01,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392560961] [2020-10-20 00:31:01,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:31:01,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-20 00:31:01,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276360964] [2020-10-20 00:31:01,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:31:01,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:31:01,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:31:01,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:31:01,631 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 10 states. [2020-10-20 00:31:02,638 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-20 00:31:03,803 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-10-20 00:31:33,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:31:33,497 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-20 00:31:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:31:33,497 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-10-20 00:31:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:31:33,499 INFO L225 Difference]: With dead ends: 31 [2020-10-20 00:31:33,499 INFO L226 Difference]: Without dead ends: 27 [2020-10-20 00:31:33,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:31:33,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-20 00:31:33,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-20 00:31:33,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 00:31:33,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-20 00:31:33,504 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2020-10-20 00:31:33,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:31:33,505 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-20 00:31:33,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:31:33,513 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-20 00:31:33,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:31:33,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:31:33,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:31:33,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:31:33,715 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:31:33,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:31:33,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2020-10-20 00:31:33,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:31:33,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639017942] [2020-10-20 00:31:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 00:31:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:31:36,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:31:36,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:31:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:31:36,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:31:37,784 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-20 00:31:37,787 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-20 00:31:40,248 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2020-10-20 00:31:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:31:40,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639017942] [2020-10-20 00:31:40,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:31:40,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:31:40,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115957201] [2020-10-20 00:31:40,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:31:40,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:31:40,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:31:40,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:31:40,254 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2020-10-20 00:31:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:31:40,444 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-20 00:31:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:31:40,445 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 00:31:40,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:31:40,446 INFO L225 Difference]: With dead ends: 27 [2020-10-20 00:31:40,446 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:31:40,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:31:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:31:40,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:31:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:31:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:31:40,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-20 00:31:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:31:40,448 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:31:40,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:31:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:31:40,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:31:40,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:31:40,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:31:41,002 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-20 00:31:41,037 INFO L274 CegarLoopResult]: For program point L60(lines 60 71) no Hoare annotation was computed. [2020-10-20 00:31:41,037 INFO L274 CegarLoopResult]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2020-10-20 00:31:41,038 INFO L270 CegarLoopResult]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2020-10-20 00:31:41,038 INFO L274 CegarLoopResult]: For program point L102(lines 102 130) no Hoare annotation was computed. [2020-10-20 00:31:41,038 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:31:41,038 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:31:41,038 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:31:41,038 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:31:41,038 INFO L277 CegarLoopResult]: At program point L152(lines 133 153) the Hoare annotation is: true [2020-10-20 00:31:41,039 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-20 00:31:41,039 INFO L274 CegarLoopResult]: For program point L70-2(line 70) no Hoare annotation was computed. [2020-10-20 00:31:41,039 INFO L274 CegarLoopResult]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2020-10-20 00:31:41,039 INFO L270 CegarLoopResult]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2020-10-20 00:31:41,039 INFO L274 CegarLoopResult]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2020-10-20 00:31:41,039 INFO L274 CegarLoopResult]: For program point L79(lines 79 88) no Hoare annotation was computed. [2020-10-20 00:31:41,039 INFO L274 CegarLoopResult]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2020-10-20 00:31:41,040 INFO L274 CegarLoopResult]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2020-10-20 00:31:41,040 INFO L270 CegarLoopResult]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2020-10-20 00:31:41,040 INFO L270 CegarLoopResult]: At program point L129(lines 46 131) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (exists ((ULTIMATE.start___ieee754_exp_~x (_ FloatingPoint 11 53))) (and (= (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) ULTIMATE.start___ieee754_exp_~x) |ULTIMATE.start___ieee754_exp_#res|) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53))))) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53)))) [2020-10-20 00:31:41,040 INFO L274 CegarLoopResult]: For program point L146(lines 146 149) no Hoare annotation was computed. [2020-10-20 00:31:41,040 INFO L274 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-10-20 00:31:41,040 INFO L274 CegarLoopResult]: For program point L98(lines 98 101) no Hoare annotation was computed. [2020-10-20 00:31:41,040 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:31:41,041 INFO L274 CegarLoopResult]: For program point L123(lines 123 128) no Hoare annotation was computed. [2020-10-20 00:31:41,041 INFO L274 CegarLoopResult]: For program point L90(lines 90 93) no Hoare annotation was computed. [2020-10-20 00:31:41,041 INFO L274 CegarLoopResult]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2020-10-20 00:31:41,041 INFO L274 CegarLoopResult]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2020-10-20 00:31:41,041 INFO L274 CegarLoopResult]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2020-10-20 00:31:41,041 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:31:41,041 INFO L274 CegarLoopResult]: For program point L74(lines 74 75) no Hoare annotation was computed. [2020-10-20 00:31:41,041 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:31:41,042 INFO L274 CegarLoopResult]: For program point L91(lines 91 92) no Hoare annotation was computed. [2020-10-20 00:31:41,042 INFO L274 CegarLoopResult]: For program point L141(lines 141 150) no Hoare annotation was computed. [2020-10-20 00:31:41,042 INFO L274 CegarLoopResult]: For program point L141-2(lines 141 150) no Hoare annotation was computed. [2020-10-20 00:31:41,042 INFO L274 CegarLoopResult]: For program point L59(lines 59 76) no Hoare annotation was computed. [2020-10-20 00:31:41,042 INFO L274 CegarLoopResult]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2020-10-20 00:31:41,042 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-10-20 00:31:41,043 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: (and (= ~huge_exp~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53)))) [2020-10-20 00:31:41,043 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-10-20 00:31:41,043 INFO L274 CegarLoopResult]: For program point L109(lines 109 114) no Hoare annotation was computed. [2020-10-20 00:31:41,043 INFO L274 CegarLoopResult]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2020-10-20 00:31:41,043 INFO L274 CegarLoopResult]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2020-10-20 00:31:41,056 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:31:41,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-20 00:31:41,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-20 00:31:41,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,062 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:31:41,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-20 00:31:41,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-20 00:31:41,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,064 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:31:41,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:31:41,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:31:41 BoogieIcfgContainer [2020-10-20 00:31:41,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:31:41,069 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:31:41,069 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:31:41,069 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:31:41,070 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:41" (3/4) ... [2020-10-20 00:31:41,073 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:31:41,087 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 00:31:41,087 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 00:31:41,088 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:31:41,088 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:31:41,119 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) [2020-10-20 00:31:41,190 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:31:41,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:31:41,192 INFO L168 Benchmark]: Toolchain (without parser) took 72770.53 ms. Allocated memory was 40.9 MB in the beginning and 49.3 MB in the end (delta: 8.4 MB). Free memory was 19.5 MB in the beginning and 27.9 MB in the end (delta: -8.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:41,192 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 31.5 MB. Free memory was 8.5 MB in the beginning and 8.4 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:31:41,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.18 ms. Allocated memory was 40.9 MB in the beginning and 41.4 MB in the end (delta: 524.3 kB). Free memory was 18.6 MB in the beginning and 16.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:41,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.07 ms. Allocated memory is still 41.4 MB. Free memory was 16.0 MB in the beginning and 13.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:41,194 INFO L168 Benchmark]: Boogie Preprocessor took 65.48 ms. Allocated memory is still 41.4 MB. Free memory was 13.6 MB in the beginning and 11.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:41,194 INFO L168 Benchmark]: RCFGBuilder took 12419.20 ms. Allocated memory was 41.4 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Free memory was 11.2 MB in the beginning and 13.1 MB in the end (delta: -1.9 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:41,195 INFO L168 Benchmark]: TraceAbstraction took 59660.43 ms. Allocated memory was 43.5 MB in the beginning and 49.3 MB in the end (delta: 5.8 MB). Free memory was 12.6 MB in the beginning and 15.5 MB in the end (delta: -3.0 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:41,195 INFO L168 Benchmark]: Witness Printer took 121.62 ms. Allocated memory is still 49.3 MB. Free memory was 15.5 MB in the beginning and 27.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:41,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 31.5 MB. Free memory was 8.5 MB in the beginning and 8.4 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 426.18 ms. Allocated memory was 40.9 MB in the beginning and 41.4 MB in the end (delta: 524.3 kB). Free memory was 18.6 MB in the beginning and 16.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 67.07 ms. Allocated memory is still 41.4 MB. Free memory was 16.0 MB in the beginning and 13.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 65.48 ms. Allocated memory is still 41.4 MB. Free memory was 13.6 MB in the beginning and 11.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 12419.20 ms. Allocated memory was 41.4 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Free memory was 11.2 MB in the beginning and 13.1 MB in the end (delta: -1.9 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 59660.43 ms. Allocated memory was 43.5 MB in the beginning and 49.3 MB in the end (delta: 5.8 MB). Free memory was 12.6 MB in the beginning and 15.5 MB in the end (delta: -3.0 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. * Witness Printer took 121.62 ms. Allocated memory is still 49.3 MB. Free memory was 15.5 MB in the beginning and 27.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 14.3 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant [2020-10-20 00:31:41,204 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:31:41,204 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-20 00:31:41,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-20 00:31:41,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:31:41,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-20 00:31:41,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-10-20 00:31:41,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 51]: Loop Invariant [2020-10-20 00:31:41,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:31:41,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:31:41,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:31:41,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 59.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 44.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 61 SDslu, 171 SDs, 0 SdLazy, 51 SolverSat, 5 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 38.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 49 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 10 QuantifiedInterpolants, 7497 SizeOfPredicates, 21 NumberOfNonLiveVariables, 347 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...