./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cbb939d5 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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092a.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 51b19897c11e4f835362356179f819ee4e466264 ................................................................................................................................................................................................................................................................................................. 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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092a.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 51b19897c11e4f835362356179f819ee4e466264 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-cbb939d [2020-11-23 16:43:18,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:43:18,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:43:18,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:43:18,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:43:18,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:43:18,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:43:18,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:43:18,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:43:18,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:43:18,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:43:18,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:43:18,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:43:18,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:43:18,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:43:18,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:43:18,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:43:18,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:43:18,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:43:18,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:43:18,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:43:18,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:43:18,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:43:18,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:43:18,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:43:18,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:43:18,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:43:18,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:43:18,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:43:18,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:43:18,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:43:18,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:43:18,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:43:18,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:43:18,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:43:18,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:43:18,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:43:18,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:43:18,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:43:18,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:43:18,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:43:18,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-23 16:43:18,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:43:18,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:43:18,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:43:18,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:43:18,915 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:43:18,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:43:18,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:43:18,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-23 16:43:18,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:43:18,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:43:18,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:43:18,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:43:18,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:43:18,917 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:43:18,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:43:18,917 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:43:18,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:43:18,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:43:18,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:43:18,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:43:18,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:43:18,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:43:18,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:43:18,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:43:18,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:43:18,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-23 16:43:18,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-23 16:43:18,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:43:18,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:43:18,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51b19897c11e4f835362356179f819ee4e466264 [2020-11-23 16:43:19,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:43:19,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:43:19,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:43:19,406 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:43:19,407 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:43:19,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c [2020-11-23 16:43:19,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfb905b4/d5b2225b9c744db3b5d1cac8f03b7ca0/FLAGab70cd468 [2020-11-23 16:43:20,154 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:43:20,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c [2020-11-23 16:43:20,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfb905b4/d5b2225b9c744db3b5d1cac8f03b7ca0/FLAGab70cd468 [2020-11-23 16:43:20,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfb905b4/d5b2225b9c744db3b5d1cac8f03b7ca0 [2020-11-23 16:43:20,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:43:20,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:43:20,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:43:20,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:43:20,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:43:20,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:20,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c44015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20, skipping insertion in model container [2020-11-23 16:43:20,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:20,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:43:20,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:43:20,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:43:20,921 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:43:20,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:43:20,972 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:43:20,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20 WrapperNode [2020-11-23 16:43:20,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:43:20,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:43:20,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:43:20,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:43:20,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:43:21,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:43:21,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:43:21,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:43:21,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (1/1) ... [2020-11-23 16:43:21,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:43:21,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:43:21,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:43:21,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:43:21,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (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 [2020-11-23 16:43:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-23 16:43:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:43:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-23 16:43:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-23 16:43:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-23 16:43:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:43:21,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:43:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-23 16:43:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:43:21,702 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:43:21,702 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-23 16:43:21,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:21 BoogieIcfgContainer [2020-11-23 16:43:21,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:43:21,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:43:21,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:43:21,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:43:21,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:43:20" (1/3) ... [2020-11-23 16:43:21,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638d8215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:43:21, skipping insertion in model container [2020-11-23 16:43:21,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:20" (2/3) ... [2020-11-23 16:43:21,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638d8215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:43:21, skipping insertion in model container [2020-11-23 16:43:21,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:21" (3/3) ... [2020-11-23 16:43:21,713 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-11-23 16:43:21,728 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:43:21,732 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:43:21,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:43:21,770 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:43:21,770 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:43:21,770 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:43:21,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:43:21,771 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:43:21,771 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:43:21,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:43:21,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:43:21,786 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-23 16:43:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-23 16:43:21,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:21,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:21,793 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:21,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:21,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-23 16:43:21,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:43:21,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087312032] [2020-11-23 16:43:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:43:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:21,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087312032] [2020-11-23 16:43:21,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:21,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-23 16:43:21,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341204074] [2020-11-23 16:43:21,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:43:21,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-23 16:43:21,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:43:21,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:43:21,973 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-23 16:43:21,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:21,999 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-23 16:43:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:43:22,001 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-23 16:43:22,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:22,011 INFO L225 Difference]: With dead ends: 59 [2020-11-23 16:43:22,011 INFO L226 Difference]: Without dead ends: 27 [2020-11-23 16:43:22,015 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 [2020-11-23 16:43:22,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-23 16:43:22,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-23 16:43:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-23 16:43:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-23 16:43:22,053 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-23 16:43:22,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:22,053 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-23 16:43:22,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:43:22,054 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-23 16:43:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-23 16:43:22,054 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:22,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:22,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-23 16:43:22,055 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:22,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:22,056 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-23 16:43:22,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-23 16:43:22,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887874663] [2020-11-23 16:43:22,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-23 16:43:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:43:22,125 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:43:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-23 16:43:22,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-23 16:43:22,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-23 16:43:22,241 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-23 16:43:22,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-23 16:43:22,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:43:22 BoogieIcfgContainer [2020-11-23 16:43:22,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:43:22,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:43:22,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:43:22,296 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:43:22,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:21" (3/4) ... [2020-11-23 16:43:22,300 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-23 16:43:22,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:43:22,303 INFO L168 Benchmark]: Toolchain (without parser) took 1761.69 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.0 MB in the beginning and 31.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:22,304 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 37.7 MB. Free memory was 20.0 MB in the beginning and 20.0 MB in the end (delta: 22.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:22,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.82 ms. Allocated memory is still 48.2 MB. Free memory was 25.4 MB in the beginning and 26.3 MB in the end (delta: -957.1 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:22,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.07 ms. Allocated memory is still 48.2 MB. Free memory was 26.3 MB in the beginning and 24.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:22,307 INFO L168 Benchmark]: Boogie Preprocessor took 32.83 ms. Allocated memory is still 48.2 MB. Free memory was 24.5 MB in the beginning and 23.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:22,308 INFO L168 Benchmark]: RCFGBuilder took 634.48 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.1 MB in the beginning and 38.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:22,309 INFO L168 Benchmark]: TraceAbstraction took 585.98 ms. Allocated memory is still 58.7 MB. Free memory was 38.1 MB in the beginning and 31.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:22,309 INFO L168 Benchmark]: Witness Printer took 5.22 ms. Allocated memory is still 58.7 MB. Free memory was 31.3 MB in the beginning and 31.0 MB in the end (delta: 282.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:22,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 37.7 MB. Free memory was 20.0 MB in the beginning and 20.0 MB in the end (delta: 22.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.82 ms. Allocated memory is still 48.2 MB. Free memory was 25.4 MB in the beginning and 26.3 MB in the end (delta: -957.1 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.07 ms. Allocated memory is still 48.2 MB. Free memory was 26.3 MB in the beginning and 24.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.83 ms. Allocated memory is still 48.2 MB. Free memory was 24.5 MB in the beginning and 23.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 634.48 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.1 MB in the beginning and 38.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 585.98 ms. Allocated memory is still 58.7 MB. Free memory was 38.1 MB in the beginning and 31.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.22 ms. Allocated memory is still 58.7 MB. Free memory was 31.3 MB in the beginning and 31.0 MB in the end (delta: 282.7 kB). There was no memory consumed. Max. memory is 16.1 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 someBinaryFLOATComparisonOperation at line 82, overapproximation of someUnaryFLOAToperation at line 78, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L78] float x = -0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_ceil=1000000000000000000000000000000] [L79] float res = ceil_float(x); [L82] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000] [L82] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1092a.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 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: 39 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=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 0.2.0-cbb939d [2020-11-23 16:43:24,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-23 16:43:24,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-23 16:43:24,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-23 16:43:24,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-23 16:43:24,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-23 16:43:24,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-23 16:43:24,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-23 16:43:24,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-23 16:43:24,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-23 16:43:24,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-23 16:43:24,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-23 16:43:24,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-23 16:43:24,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-23 16:43:24,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-23 16:43:24,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-23 16:43:24,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-23 16:43:24,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-23 16:43:24,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-23 16:43:24,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-23 16:43:24,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-23 16:43:24,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-23 16:43:24,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-23 16:43:24,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-23 16:43:24,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-23 16:43:24,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-23 16:43:24,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-23 16:43:24,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-23 16:43:24,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-23 16:43:24,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-23 16:43:24,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-23 16:43:24,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-23 16:43:24,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-23 16:43:25,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-23 16:43:25,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-23 16:43:25,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-23 16:43:25,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-23 16:43:25,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-23 16:43:25,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-23 16:43:25,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-23 16:43:25,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-23 16:43:25,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-23 16:43:25,075 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-23 16:43:25,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-23 16:43:25,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-23 16:43:25,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-23 16:43:25,079 INFO L138 SettingsManager]: * Use SBE=true [2020-11-23 16:43:25,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-23 16:43:25,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-23 16:43:25,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-23 16:43:25,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-23 16:43:25,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-23 16:43:25,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-23 16:43:25,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-23 16:43:25,082 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-23 16:43:25,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-23 16:43:25,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-23 16:43:25,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-23 16:43:25,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-23 16:43:25,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-23 16:43:25,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-23 16:43:25,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-23 16:43:25,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-23 16:43:25,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-23 16:43:25,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-23 16:43:25,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-23 16:43:25,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-23 16:43:25,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-23 16:43:25,086 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-23 16:43:25,086 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-23 16:43:25,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-23 16:43:25,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-23 16:43:25,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-23 16:43:25,087 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51b19897c11e4f835362356179f819ee4e466264 [2020-11-23 16:43:25,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-23 16:43:25,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-23 16:43:25,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-23 16:43:25,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-23 16:43:25,610 INFO L275 PluginConnector]: CDTParser initialized [2020-11-23 16:43:25,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c [2020-11-23 16:43:25,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d3af865/772723a83047413fbde5798e185856e9/FLAG0f594022b [2020-11-23 16:43:26,372 INFO L306 CDTParser]: Found 1 translation units. [2020-11-23 16:43:26,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c [2020-11-23 16:43:26,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d3af865/772723a83047413fbde5798e185856e9/FLAG0f594022b [2020-11-23 16:43:26,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d3af865/772723a83047413fbde5798e185856e9 [2020-11-23 16:43:26,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-23 16:43:26,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-23 16:43:26,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-23 16:43:26,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-23 16:43:26,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-23 16:43:26,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:43:26" (1/1) ... [2020-11-23 16:43:26,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2b713b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:26, skipping insertion in model container [2020-11-23 16:43:26,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:43:26" (1/1) ... [2020-11-23 16:43:26,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-23 16:43:26,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-23 16:43:27,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:43:27,023 INFO L203 MainTranslator]: Completed pre-run [2020-11-23 16:43:27,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-23 16:43:27,080 INFO L208 MainTranslator]: Completed translation [2020-11-23 16:43:27,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27 WrapperNode [2020-11-23 16:43:27,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-23 16:43:27,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-23 16:43:27,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-23 16:43:27,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-23 16:43:27,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-23 16:43:27,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-23 16:43:27,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-23 16:43:27,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-23 16:43:27,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (1/1) ... [2020-11-23 16:43:27,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-23 16:43:27,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-23 16:43:27,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-23 16:43:27,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-23 16:43:27,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (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 [2020-11-23 16:43:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-23 16:43:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-23 16:43:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-23 16:43:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-23 16:43:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-23 16:43:27,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-23 16:43:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-23 16:43:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-23 16:43:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-23 16:43:28,049 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-23 16:43:28,050 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-23 16:43:28,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:28 BoogieIcfgContainer [2020-11-23 16:43:28,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-23 16:43:28,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-23 16:43:28,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-23 16:43:28,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-23 16:43:28,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:43:26" (1/3) ... [2020-11-23 16:43:28,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d150204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:43:28, skipping insertion in model container [2020-11-23 16:43:28,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:43:27" (2/3) ... [2020-11-23 16:43:28,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d150204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:43:28, skipping insertion in model container [2020-11-23 16:43:28,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:28" (3/3) ... [2020-11-23 16:43:28,062 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-11-23 16:43:28,081 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-23 16:43:28,086 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-23 16:43:28,101 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-23 16:43:28,133 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-23 16:43:28,133 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-23 16:43:28,133 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-23 16:43:28,134 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-23 16:43:28,134 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-23 16:43:28,134 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-23 16:43:28,134 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-23 16:43:28,134 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-23 16:43:28,151 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-23 16:43:28,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-23 16:43:28,158 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:28,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:28,160 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:28,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:28,167 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-23 16:43:28,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:28,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102547289] [2020-11-23 16:43:28,183 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 [2020-11-23 16:43:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:28,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-23 16:43:28,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:28,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:28,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102547289] [2020-11-23 16:43:28,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:28,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-23 16:43:28,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114300666] [2020-11-23 16:43:28,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-23 16:43:28,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:28,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-23 16:43:28,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:43:28,405 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-23 16:43:28,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:28,449 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-23 16:43:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-23 16:43:28,451 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-23 16:43:28,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:28,478 INFO L225 Difference]: With dead ends: 59 [2020-11-23 16:43:28,479 INFO L226 Difference]: Without dead ends: 27 [2020-11-23 16:43:28,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-23 16:43:28,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-23 16:43:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-23 16:43:28,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-23 16:43:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-23 16:43:28,541 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-23 16:43:28,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:28,542 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-23 16:43:28,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-23 16:43:28,543 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-23 16:43:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-23 16:43:28,544 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:28,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:28,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-23 16:43:28,761 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:28,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:28,765 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-23 16:43:28,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:28,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633623335] [2020-11-23 16:43:28,770 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 [2020-11-23 16:43:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:28,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-23 16:43:28,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:29,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:29,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:29,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633623335] [2020-11-23 16:43:29,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:29,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-23 16:43:29,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520832523] [2020-11-23 16:43:29,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-23 16:43:29,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:29,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-23 16:43:29,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-23 16:43:29,119 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-11-23 16:43:29,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:29,317 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-11-23 16:43:29,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-23 16:43:29,318 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-23 16:43:29,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:29,319 INFO L225 Difference]: With dead ends: 39 [2020-11-23 16:43:29,319 INFO L226 Difference]: Without dead ends: 21 [2020-11-23 16:43:29,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-23 16:43:29,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-23 16:43:29,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-23 16:43:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-23 16:43:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-23 16:43:29,327 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-11-23 16:43:29,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:29,328 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-23 16:43:29,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-23 16:43:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-23 16:43:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-23 16:43:29,329 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:29,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:29,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-23 16:43:29,546 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:29,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:29,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-11-23 16:43:29,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:29,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946597490] [2020-11-23 16:43:29,549 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 [2020-11-23 16:43:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:29,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-23 16:43:29,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:29,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:29,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:30,141 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-23 16:43:30,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:30,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946597490] [2020-11-23 16:43:30,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:30,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-23 16:43:30,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607354641] [2020-11-23 16:43:30,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-23 16:43:30,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:30,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-23 16:43:30,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-23 16:43:30,335 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-11-23 16:43:30,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:30,551 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-23 16:43:30,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-23 16:43:30,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-23 16:43:30,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:30,556 INFO L225 Difference]: With dead ends: 33 [2020-11-23 16:43:30,556 INFO L226 Difference]: Without dead ends: 21 [2020-11-23 16:43:30,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-23 16:43:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-23 16:43:30,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-23 16:43:30,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-23 16:43:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-23 16:43:30,563 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-11-23 16:43:30,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:30,563 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-23 16:43:30,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-23 16:43:30,564 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-23 16:43:30,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-23 16:43:30,564 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:30,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:30,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-23 16:43:30,768 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:30,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:30,769 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2020-11-23 16:43:30,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:30,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299974224] [2020-11-23 16:43:30,771 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 [2020-11-23 16:43:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:30,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-23 16:43:30,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:30,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:31,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299974224] [2020-11-23 16:43:31,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:31,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-23 16:43:31,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539130003] [2020-11-23 16:43:31,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-23 16:43:31,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:31,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-23 16:43:31,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-23 16:43:31,041 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2020-11-23 16:43:31,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:31,275 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-23 16:43:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-23 16:43:31,276 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-23 16:43:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:31,277 INFO L225 Difference]: With dead ends: 24 [2020-11-23 16:43:31,277 INFO L226 Difference]: Without dead ends: 21 [2020-11-23 16:43:31,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-23 16:43:31,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-23 16:43:31,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-23 16:43:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-23 16:43:31,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-11-23 16:43:31,283 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2020-11-23 16:43:31,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:31,284 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-11-23 16:43:31,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-23 16:43:31,284 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-23 16:43:31,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-23 16:43:31,285 INFO L414 BasicCegarLoop]: Found error trace [2020-11-23 16:43:31,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-23 16:43:31,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-23 16:43:31,486 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-23 16:43:31,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-23 16:43:31,488 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2020-11-23 16:43:31,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-23 16:43:31,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505376258] [2020-11-23 16:43:31,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-23 16:43:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-23 16:43:31,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-23 16:43:31,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-23 16:43:31,727 INFO L615 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-23 16:43:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:31,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-23 16:43:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-23 16:43:32,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505376258] [2020-11-23 16:43:32,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-23 16:43:32,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-23 16:43:32,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257350344] [2020-11-23 16:43:32,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-23 16:43:32,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-23 16:43:32,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-23 16:43:32,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-23 16:43:32,124 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2020-11-23 16:43:32,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-23 16:43:32,625 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-23 16:43:32,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-23 16:43:32,626 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-11-23 16:43:32,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-23 16:43:32,626 INFO L225 Difference]: With dead ends: 21 [2020-11-23 16:43:32,626 INFO L226 Difference]: Without dead ends: 0 [2020-11-23 16:43:32,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-11-23 16:43:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-23 16:43:32,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-23 16:43:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-23 16:43:32,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-23 16:43:32,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-23 16:43:32,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-23 16:43:32,629 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-23 16:43:32,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-23 16:43:32,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-23 16:43:32,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-23 16:43:32,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-23 16:43:32,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-23 16:43:33,068 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-23 16:43:33,295 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-11-23 16:43:33,301 INFO L262 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-23 16:43:33,301 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-23 16:43:33,301 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-23 16:43:33,302 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-23 16:43:33,302 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-23 16:43:33,302 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-23 16:43:33,302 INFO L262 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-11-23 16:43:33,302 INFO L262 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-11-23 16:43:33,303 INFO L258 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_main_~res~0))) [2020-11-23 16:43:33,303 INFO L262 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-11-23 16:43:33,303 INFO L262 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-11-23 16:43:33,304 INFO L265 CegarLoopResult]: At program point L87(lines 70 88) the Hoare annotation is: true [2020-11-23 16:43:33,304 INFO L262 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-11-23 16:43:33,304 INFO L262 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-23 16:43:33,304 INFO L258 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))))) [2020-11-23 16:43:33,305 INFO L262 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-23 16:43:33,305 INFO L262 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-11-23 16:43:33,305 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-23 16:43:33,305 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-23 16:43:33,305 INFO L262 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-23 16:43:33,306 INFO L262 CegarLoopResult]: For program point L82-2(lines 82 85) no Hoare annotation was computed. [2020-11-23 16:43:33,306 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-23 16:43:33,306 INFO L262 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-11-23 16:43:33,306 INFO L262 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-11-23 16:43:33,306 INFO L262 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-11-23 16:43:33,307 INFO L262 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-11-23 16:43:33,307 INFO L258 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_main_~res~0))) [2020-11-23 16:43:33,307 INFO L262 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-11-23 16:43:33,307 INFO L262 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-23 16:43:33,308 INFO L258 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= ULTIMATE.start_ceil_float_~x (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-23 16:43:33,308 INFO L262 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-23 16:43:33,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,325 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,329 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,335 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,335 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,338 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,340 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,341 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,343 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,344 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,344 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,344 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:43:33 BoogieIcfgContainer [2020-11-23 16:43:33,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-23 16:43:33,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-23 16:43:33,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-23 16:43:33,349 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-23 16:43:33,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:43:28" (3/4) ... [2020-11-23 16:43:33,353 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-23 16:43:33,366 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-23 16:43:33,367 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-23 16:43:33,367 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-23 16:43:33,367 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-23 16:43:33,400 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) [2020-11-23 16:43:33,403 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2020-11-23 16:43:33,404 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2020-11-23 16:43:33,471 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-23 16:43:33,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-23 16:43:33,474 INFO L168 Benchmark]: Toolchain (without parser) took 6756.72 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 25.5 MB in the beginning and 45.0 MB in the end (delta: -19.5 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:33,474 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 48.2 MB. Free memory is still 31.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:33,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.46 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 27.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:33,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.08 ms. Allocated memory is still 48.2 MB. Free memory was 27.2 MB in the beginning and 25.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-23 16:43:33,478 INFO L168 Benchmark]: Boogie Preprocessor took 41.80 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 23.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:33,480 INFO L168 Benchmark]: RCFGBuilder took 874.99 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 23.8 MB in the beginning and 44.6 MB in the end (delta: -20.8 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:33,482 INFO L168 Benchmark]: TraceAbstraction took 5293.95 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 21.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:33,483 INFO L168 Benchmark]: Witness Printer took 123.72 ms. Allocated memory is still 62.9 MB. Free memory was 21.3 MB in the beginning and 45.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-23 16:43:33,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 48.2 MB. Free memory is still 31.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.46 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 27.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.08 ms. Allocated memory is still 48.2 MB. Free memory was 27.2 MB in the beginning and 25.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.80 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 23.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 874.99 ms. Allocated memory was 48.2 MB in the beginning and 62.9 MB in the end (delta: 14.7 MB). Free memory was 23.8 MB in the beginning and 44.6 MB in the end (delta: -20.8 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5293.95 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 21.3 MB in the end (delta: 22.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * Witness Printer took 123.72 ms. Allocated memory is still 62.9 MB. Free memory was 21.3 MB in the beginning and 45.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] * 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 - 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: 18]: Loop Invariant [2020-11-23 16:43:33,518 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 61]: Loop Invariant [2020-11-23 16:43:33,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,530 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,531 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,531 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - InvariantResult [Line: 15]: Loop Invariant [2020-11-23 16:43:33,537 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,544 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,546 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,546 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2020-11-23 16:43:33,550 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,551 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-23 16:43:33,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,556 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-23 16:43:33,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-23 16:43:33,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 197 SDslu, 80 SDs, 0 SdLazy, 113 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 223 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 8650 SizeOfPredicates, 26 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! Received shutdown request...