./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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_1122b.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 d8b47ecdb704e16d352286b75129bb9ac82f6df5 .......................................................................................................................................................................................................................................................................................................... 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_1122b.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 d8b47ecdb704e16d352286b75129bb9ac82f6df5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 16:17:48,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 16:17:48,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 16:17:48,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 16:17:48,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 16:17:48,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 16:17:48,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 16:17:48,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 16:17:48,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 16:17:48,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 16:17:48,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 16:17:48,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 16:17:48,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 16:17:48,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 16:17:48,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 16:17:48,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 16:17:48,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 16:17:48,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 16:17:48,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 16:17:48,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 16:17:48,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 16:17:48,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 16:17:48,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 16:17:48,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 16:17:48,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 16:17:48,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 16:17:48,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 16:17:48,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 16:17:48,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 16:17:48,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 16:17:48,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 16:17:48,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 16:17:48,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 16:17:48,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 16:17:48,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 16:17:48,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 16:17:48,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 16:17:48,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 16:17:48,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 16:17:48,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 16:17:48,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 16:17:48,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 16:17:48,868 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 16:17:48,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 16:17:48,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 16:17:48,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 16:17:48,871 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 16:17:48,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 16:17:48,871 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 16:17:48,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 16:17:48,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 16:17:48,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 16:17:48,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 16:17:48,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 16:17:48,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 16:17:48,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 16:17:48,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 16:17:48,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 16:17:48,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 16:17:48,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 16:17:48,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 16:17:48,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 16:17:48,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 16:17:48,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:17:48,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 16:17:48,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 16:17:48,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 16:17:48,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 16:17:48,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 16:17:48,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 16:17:48,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 16:17:48,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b47ecdb704e16d352286b75129bb9ac82f6df5 [2020-12-02 16:17:49,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 16:17:49,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 16:17:49,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 16:17:49,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 16:17:49,372 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 16:17:49,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c [2020-12-02 16:17:49,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1886dea49/0ec3591a4b8441cc8a10ab072cc5a9b6/FLAG3d04d8578 [2020-12-02 16:17:50,085 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 16:17:50,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c [2020-12-02 16:17:50,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1886dea49/0ec3591a4b8441cc8a10ab072cc5a9b6/FLAG3d04d8578 [2020-12-02 16:17:50,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1886dea49/0ec3591a4b8441cc8a10ab072cc5a9b6 [2020-12-02 16:17:50,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 16:17:50,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 16:17:50,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 16:17:50,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 16:17:50,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 16:17:50,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:50,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7fe4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50, skipping insertion in model container [2020-12-02 16:17:50,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:50,484 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 16:17:50,578 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 16:17:50,847 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c[2726,2739] [2020-12-02 16:17:50,852 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:17:50,863 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 16:17:50,916 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c[2726,2739] [2020-12-02 16:17:50,918 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:17:50,944 INFO L217 MainTranslator]: Completed translation [2020-12-02 16:17:50,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50 WrapperNode [2020-12-02 16:17:50,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 16:17:50,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 16:17:50,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 16:17:50,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 16:17:50,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:50,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:51,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 16:17:51,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 16:17:51,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 16:17:51,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 16:17:51,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:51,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:51,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:51,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:51,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:51,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:51,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (1/1) ... [2020-12-02 16:17:51,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 16:17:51,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 16:17:51,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 16:17:51,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 16:17:51,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (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 [2020-12-02 16:17:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 16:17:51,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 16:17:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 16:17:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 16:17:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 16:17:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 16:17:51,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 16:17:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 16:17:51,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-02 16:17:51,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 16:17:51,798 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 16:17:51,798 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-02 16:17:51,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:17:51 BoogieIcfgContainer [2020-12-02 16:17:51,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 16:17:51,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 16:17:51,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 16:17:51,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 16:17:51,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:17:50" (1/3) ... [2020-12-02 16:17:51,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158c21bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:17:51, skipping insertion in model container [2020-12-02 16:17:51,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:50" (2/3) ... [2020-12-02 16:17:51,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158c21bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:17:51, skipping insertion in model container [2020-12-02 16:17:51,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:17:51" (3/3) ... [2020-12-02 16:17:51,811 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2020-12-02 16:17:51,833 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 16:17:51,839 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 16:17:51,849 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 16:17:51,877 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 16:17:51,878 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 16:17:51,878 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 16:17:51,878 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 16:17:51,879 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 16:17:51,879 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 16:17:51,879 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 16:17:51,879 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 16:17:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-12-02 16:17:51,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 16:17:51,901 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:17:51,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:17:51,902 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:17:51,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:17:51,909 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-12-02 16:17:51,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 16:17:51,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565905325] [2020-12-02 16:17:51,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 16:17:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:17:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:17:52,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565905325] [2020-12-02 16:17:52,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:17:52,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 16:17:52,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631605571] [2020-12-02 16:17:52,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 16:17:52,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 16:17:52,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 16:17:52,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 16:17:52,122 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-12-02 16:17:52,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:17:52,149 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2020-12-02 16:17:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 16:17:52,151 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 16:17:52,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:17:52,163 INFO L225 Difference]: With dead ends: 82 [2020-12-02 16:17:52,163 INFO L226 Difference]: Without dead ends: 39 [2020-12-02 16:17:52,167 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 [2020-12-02 16:17:52,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-02 16:17:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-02 16:17:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-02 16:17:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-12-02 16:17:52,211 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-12-02 16:17:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:17:52,212 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-12-02 16:17:52,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 16:17:52,213 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-12-02 16:17:52,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 16:17:52,214 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:17:52,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:17:52,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 16:17:52,215 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:17:52,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:17:52,216 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-12-02 16:17:52,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 16:17:52,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253731987] [2020-12-02 16:17:52,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 16:17:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 16:17:52,310 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 16:17:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 16:17:52,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 16:17:52,454 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 16:17:52,455 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 16:17:52,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 16:17:52,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:17:52 BoogieIcfgContainer [2020-12-02 16:17:52,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 16:17:52,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 16:17:52,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 16:17:52,494 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 16:17:52,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:17:51" (3/4) ... [2020-12-02 16:17:52,499 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 16:17:52,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 16:17:52,502 INFO L168 Benchmark]: Toolchain (without parser) took 2044.19 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 29.0 MB in the beginning and 31.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2020-12-02 16:17:52,504 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 35.7 MB. Free memory was 21.9 MB in the beginning and 21.9 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:17:52,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.13 ms. Allocated memory is still 46.1 MB. Free memory was 28.7 MB in the beginning and 28.5 MB in the end (delta: 264.8 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-12-02 16:17:52,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.83 ms. Allocated memory is still 46.1 MB. Free memory was 28.5 MB in the beginning and 26.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:17:52,507 INFO L168 Benchmark]: Boogie Preprocessor took 64.27 ms. Allocated memory is still 46.1 MB. Free memory was 26.5 MB in the beginning and 24.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:17:52,508 INFO L168 Benchmark]: RCFGBuilder took 688.72 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.7 MB in the beginning and 30.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-12-02 16:17:52,509 INFO L168 Benchmark]: TraceAbstraction took 689.92 ms. Allocated memory is still 56.6 MB. Free memory was 29.6 MB in the beginning and 32.1 MB in the end (delta: -2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:17:52,510 INFO L168 Benchmark]: Witness Printer took 6.22 ms. Allocated memory is still 56.6 MB. Free memory was 32.1 MB in the beginning and 31.7 MB in the end (delta: 354.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:17:52,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 35.7 MB. Free memory was 21.9 MB in the beginning and 21.9 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.13 ms. Allocated memory is still 46.1 MB. Free memory was 28.7 MB in the beginning and 28.5 MB in the end (delta: 264.8 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.83 ms. Allocated memory is still 46.1 MB. Free memory was 28.5 MB in the beginning and 26.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.27 ms. Allocated memory is still 46.1 MB. Free memory was 26.5 MB in the beginning and 24.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 688.72 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.7 MB in the beginning and 30.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 689.92 ms. Allocated memory is still 56.6 MB. Free memory was 29.6 MB in the beginning and 32.1 MB in the end (delta: -2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.22 ms. Allocated memory is still 56.6 MB. Free memory was 32.1 MB in the beginning and 31.7 MB in the end (delta: 354.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 125]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLE_SMToperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 110, overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L119] float x = -1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L121] float res = fmod_float(x, y); [L110] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 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 0.2.0-2880296 [2020-12-02 16:17:55,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 16:17:55,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 16:17:55,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 16:17:55,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 16:17:55,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 16:17:55,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 16:17:55,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 16:17:55,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 16:17:55,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 16:17:55,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 16:17:55,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 16:17:55,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 16:17:55,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 16:17:55,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 16:17:55,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 16:17:55,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 16:17:55,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 16:17:55,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 16:17:55,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 16:17:55,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 16:17:55,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 16:17:55,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 16:17:55,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 16:17:55,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 16:17:55,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 16:17:55,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 16:17:55,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 16:17:55,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 16:17:55,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 16:17:55,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 16:17:55,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 16:17:55,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 16:17:55,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 16:17:55,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 16:17:55,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 16:17:55,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 16:17:55,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 16:17:55,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 16:17:55,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 16:17:55,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 16:17:55,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 16:17:55,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 16:17:55,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 16:17:55,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 16:17:55,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 16:17:55,345 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 16:17:55,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 16:17:55,346 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 16:17:55,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 16:17:55,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 16:17:55,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 16:17:55,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 16:17:55,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 16:17:55,347 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 16:17:55,347 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 16:17:55,348 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 16:17:55,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 16:17:55,348 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 16:17:55,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 16:17:55,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 16:17:55,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 16:17:55,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 16:17:55,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 16:17:55,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:17:55,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 16:17:55,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 16:17:55,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 16:17:55,351 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 16:17:55,352 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 16:17:55,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 16:17:55,352 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 16:17:55,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 16:17:55,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b47ecdb704e16d352286b75129bb9ac82f6df5 [2020-12-02 16:17:55,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 16:17:55,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 16:17:55,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 16:17:55,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 16:17:55,848 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 16:17:55,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c [2020-12-02 16:17:55,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93bd58ae/5f6be8cf8b6f4b9cb210ec26f2c241f8/FLAG7a4705d88 [2020-12-02 16:17:56,590 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 16:17:56,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c [2020-12-02 16:17:56,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93bd58ae/5f6be8cf8b6f4b9cb210ec26f2c241f8/FLAG7a4705d88 [2020-12-02 16:17:56,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93bd58ae/5f6be8cf8b6f4b9cb210ec26f2c241f8 [2020-12-02 16:17:56,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 16:17:56,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 16:17:56,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 16:17:56,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 16:17:56,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 16:17:56,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:17:56" (1/1) ... [2020-12-02 16:17:56,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fdcd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:56, skipping insertion in model container [2020-12-02 16:17:56,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:17:56" (1/1) ... [2020-12-02 16:17:56,990 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 16:17:57,013 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 16:17:57,239 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c[2726,2739] [2020-12-02 16:17:57,243 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:17:57,262 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 16:17:57,324 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1122b.c[2726,2739] [2020-12-02 16:17:57,326 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:17:57,350 INFO L217 MainTranslator]: Completed translation [2020-12-02 16:17:57,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57 WrapperNode [2020-12-02 16:17:57,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 16:17:57,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 16:17:57,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 16:17:57,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 16:17:57,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 16:17:57,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 16:17:57,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 16:17:57,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 16:17:57,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (1/1) ... [2020-12-02 16:17:57,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 16:17:57,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 16:17:57,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 16:17:57,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 16:17:57,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (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 [2020-12-02 16:17:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 16:17:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-02 16:17:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 16:17:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 16:17:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 16:17:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 16:17:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 16:17:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 16:17:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 16:17:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 16:17:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 16:17:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 16:18:00,690 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 16:18:00,691 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-02 16:18:00,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:18:00 BoogieIcfgContainer [2020-12-02 16:18:00,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 16:18:00,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 16:18:00,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 16:18:00,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 16:18:00,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:17:56" (1/3) ... [2020-12-02 16:18:00,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a70814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:18:00, skipping insertion in model container [2020-12-02 16:18:00,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:17:57" (2/3) ... [2020-12-02 16:18:00,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a70814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:18:00, skipping insertion in model container [2020-12-02 16:18:00,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:18:00" (3/3) ... [2020-12-02 16:18:00,703 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2020-12-02 16:18:00,720 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 16:18:00,725 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 16:18:00,738 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 16:18:00,769 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 16:18:00,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 16:18:00,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 16:18:00,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 16:18:00,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 16:18:00,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 16:18:00,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 16:18:00,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 16:18:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-12-02 16:18:00,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 16:18:00,793 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:18:00,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:18:00,795 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:18:00,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:18:00,802 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-12-02 16:18:00,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:18:00,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60360411] [2020-12-02 16:18:00,818 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 [2020-12-02 16:18:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:18:01,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 16:18:01,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:18:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:18:01,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:18:01,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:18:01,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60360411] [2020-12-02 16:18:01,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:18:01,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 16:18:01,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421904598] [2020-12-02 16:18:01,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 16:18:01,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:18:01,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 16:18:01,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 16:18:01,559 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-12-02 16:18:01,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:18:01,598 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2020-12-02 16:18:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 16:18:01,599 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 16:18:01,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:18:01,611 INFO L225 Difference]: With dead ends: 82 [2020-12-02 16:18:01,612 INFO L226 Difference]: Without dead ends: 39 [2020-12-02 16:18:01,617 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 [2020-12-02 16:18:01,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-02 16:18:01,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-02 16:18:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-02 16:18:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-12-02 16:18:01,664 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-12-02 16:18:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:18:01,664 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-12-02 16:18:01,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 16:18:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-12-02 16:18:01,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 16:18:01,666 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:18:01,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:18:01,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 16:18:01,881 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:18:01,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:18:01,883 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-12-02 16:18:01,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:18:01,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210560455] [2020-12-02 16:18:01,891 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 [2020-12-02 16:18:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:18:02,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-02 16:18:02,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:18:03,739 WARN L197 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 16:18:05,887 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet29_6| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#t~nondet15_6| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#t~nondet16_6| (_ BitVec 32)) (ULTIMATE.start_fmod_float_~x (_ BitVec 32)) (ULTIMATE.start_fmod_float_~y (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet28_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) ULTIMATE.start_fmod_float_~x) ((_ extract 30 23) ULTIMATE.start_fmod_float_~x) ((_ extract 22 0) ULTIMATE.start_fmod_float_~x)))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet28_6|))) (.cse5 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet27_6|))) (.cse3 (fp.mul roundNearestTiesToEven .cse2 (fp ((_ extract 31 31) ULTIMATE.start_fmod_float_~y) ((_ extract 30 23) ULTIMATE.start_fmod_float_~y) ((_ extract 22 0) ULTIMATE.start_fmod_float_~y)))) (.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet29_6|))) (.cse6 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|))) (.cse4 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) .cse2) (= .cse3 .cse4) (= .cse0 (fp.neg .cse5)) (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) .cse5) (= .cse3 .cse6) (= (_ +zero 8 24) .cse1) (= (fp ((_ extract 31 31) |c_ULTIMATE.start_fmod_float_#res|) ((_ extract 30 23) |c_ULTIMATE.start_fmod_float_#res|) ((_ extract 22 0) |c_ULTIMATE.start_fmod_float_#res|)) (fp.div roundNearestTiesToEven .cse6 .cse4)))))) is different from false [2020-12-02 16:18:06,083 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 16:18:06,092 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-02 16:18:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:18:07,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:18:10,247 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_fmod_float_#t~nondet15_6| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#t~nondet16_6| (_ BitVec 32)) (ULTIMATE.start_fmod_float_~y (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#res_10| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|))) (.cse3 (fp.mul c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_fmod_float_~x) ((_ extract 30 23) c_ULTIMATE.start_fmod_float_~x) ((_ extract 22 0) c_ULTIMATE.start_fmod_float_~x)) (fp ((_ extract 31 31) ULTIMATE.start_fmod_float_~y) ((_ extract 30 23) ULTIMATE.start_fmod_float_~y) ((_ extract 22 0) ULTIMATE.start_fmod_float_~y)))) (.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|))) (.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#res_10|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#res_10|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#res_10|)))) (or (not (= (fp.div c_~CRM .cse0 .cse1) .cse2)) (not (= .cse0 .cse3)) (not (= .cse3 .cse1)) (not (fp.eq .cse2 .cse2))))) is different from true [2020-12-02 16:18:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:18:10,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210560455] [2020-12-02 16:18:10,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:18:10,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 16:18:10,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12101546] [2020-12-02 16:18:10,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 16:18:10,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:18:10,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 16:18:10,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=56, Unknown=2, NotChecked=30, Total=110 [2020-12-02 16:18:10,949 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2020-12-02 16:18:13,515 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_fmod_float_#t~nondet15_6| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#t~nondet16_6| (_ BitVec 32)) (ULTIMATE.start_fmod_float_~y (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#res_10| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|))) (.cse3 (fp.mul c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_fmod_float_~x) ((_ extract 30 23) c_ULTIMATE.start_fmod_float_~x) ((_ extract 22 0) c_ULTIMATE.start_fmod_float_~x)) (fp ((_ extract 31 31) ULTIMATE.start_fmod_float_~y) ((_ extract 30 23) ULTIMATE.start_fmod_float_~y) ((_ extract 22 0) ULTIMATE.start_fmod_float_~y)))) (.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|))) (.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#res_10|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#res_10|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#res_10|)))) (or (not (= (fp.div c_~CRM .cse0 .cse1) .cse2)) (not (= .cse0 .cse3)) (not (= .cse3 .cse1)) (not (fp.eq .cse2 .cse2))))) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet29_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet28_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet28_6|))) (.cse6 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet27_6|))) (.cse5 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet29_6|)))) (and (= (fp.div c_~CRM .cse4 .cse5) (fp ((_ extract 31 31) c_ULTIMATE.start_fmod_float_~x) ((_ extract 30 23) c_ULTIMATE.start_fmod_float_~x) ((_ extract 22 0) c_ULTIMATE.start_fmod_float_~x))) (= ((_ to_fp 8 24) c_~CRM 1.0) .cse6) (= .cse4 (fp.neg .cse6)) (= (_ +zero 8 24) .cse5))))) is different from false [2020-12-02 16:18:15,561 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_fmod_float_#t~nondet15_6| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#t~nondet16_6| (_ BitVec 32)) (ULTIMATE.start_fmod_float_~y (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#res_10| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|))) (.cse3 (fp.mul c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_fmod_float_~x) ((_ extract 30 23) c_ULTIMATE.start_fmod_float_~x) ((_ extract 22 0) c_ULTIMATE.start_fmod_float_~x)) (fp ((_ extract 31 31) ULTIMATE.start_fmod_float_~y) ((_ extract 30 23) ULTIMATE.start_fmod_float_~y) ((_ extract 22 0) ULTIMATE.start_fmod_float_~y)))) (.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|))) (.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#res_10|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#res_10|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#res_10|)))) (or (not (= (fp.div c_~CRM .cse0 .cse1) .cse2)) (not (= .cse0 .cse3)) (not (= .cse3 .cse1)) (not (fp.eq .cse2 .cse2))))) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet29_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet28_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet28_6|))) (.cse6 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet27_6|))) (.cse5 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet29_6|)))) (and (= (fp.div c_~CRM .cse4 .cse5) (fp ((_ extract 31 31) c_ULTIMATE.start_fmod_float_~x) ((_ extract 30 23) c_ULTIMATE.start_fmod_float_~x) ((_ extract 22 0) c_ULTIMATE.start_fmod_float_~x))) (= ((_ to_fp 8 24) c_~CRM 1.0) .cse6) (= .cse4 (fp.neg .cse6)) (= (_ +zero 8 24) .cse5))))) is different from true [2020-12-02 16:18:17,636 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet29_6| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#t~nondet15_6| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_#t~nondet16_6| (_ BitVec 32)) (ULTIMATE.start_fmod_float_~x (_ BitVec 32)) (ULTIMATE.start_fmod_float_~y (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet28_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) ULTIMATE.start_fmod_float_~x) ((_ extract 30 23) ULTIMATE.start_fmod_float_~x) ((_ extract 22 0) ULTIMATE.start_fmod_float_~x)))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet28_6|))) (.cse5 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet27_6|))) (.cse3 (fp.mul roundNearestTiesToEven .cse2 (fp ((_ extract 31 31) ULTIMATE.start_fmod_float_~y) ((_ extract 30 23) ULTIMATE.start_fmod_float_~y) ((_ extract 22 0) ULTIMATE.start_fmod_float_~y)))) (.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet29_6|))) (.cse6 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet15_6|))) (.cse4 (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_#t~nondet16_6|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) .cse2) (= .cse3 .cse4) (= .cse0 (fp.neg .cse5)) (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) .cse5) (= .cse3 .cse6) (= (_ +zero 8 24) .cse1) (= (fp ((_ extract 31 31) |c_ULTIMATE.start_fmod_float_#res|) ((_ extract 30 23) |c_ULTIMATE.start_fmod_float_#res|) ((_ extract 22 0) |c_ULTIMATE.start_fmod_float_#res|)) (fp.div roundNearestTiesToEven .cse6 .cse4)))))) (not (let ((.cse7 (fp ((_ extract 31 31) |c_ULTIMATE.start_fmod_float_#res|) ((_ extract 30 23) |c_ULTIMATE.start_fmod_float_#res|) ((_ extract 22 0) |c_ULTIMATE.start_fmod_float_#res|)))) (fp.eq .cse7 .cse7)))) is different from false [2020-12-02 16:18:19,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:18:19,125 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-12-02 16:18:19,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 16:18:19,126 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-12-02 16:18:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:18:19,127 INFO L225 Difference]: With dead ends: 44 [2020-12-02 16:18:19,127 INFO L226 Difference]: Without dead ends: 39 [2020-12-02 16:18:19,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=32, Invalid=69, Unknown=5, NotChecked=76, Total=182 [2020-12-02 16:18:19,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-02 16:18:19,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-02 16:18:19,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-02 16:18:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-12-02 16:18:19,137 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-12-02 16:18:19,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:18:19,138 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-12-02 16:18:19,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-02 16:18:19,138 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-12-02 16:18:19,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 16:18:19,139 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:18:19,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:18:19,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 16:18:19,344 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:18:19,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:18:19,345 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-12-02 16:18:19,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:18:19,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680077653] [2020-12-02 16:18:19,347 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 [2020-12-02 16:18:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:18:19,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-02 16:18:19,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:18:20,805 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 16:18:26,224 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 16:18:34,676 WARN L197 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-02 16:18:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:18:34,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:18:38,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:18:38,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680077653] [2020-12-02 16:18:38,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:18:38,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 16:18:38,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170235963] [2020-12-02 16:18:38,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 16:18:38,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:18:38,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 16:18:38,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=47, Unknown=5, NotChecked=0, Total=72 [2020-12-02 16:18:38,242 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 9 states. [2020-12-02 16:18:46,599 WARN L197 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 16:19:00,546 WARN L197 SmtUtils]: Spent 7.95 s on a formula simplification that was a NOOP. DAG size: 43 [2020-12-02 16:19:15,759 WARN L197 SmtUtils]: Spent 6.92 s on a formula simplification that was a NOOP. DAG size: 48 [2020-12-02 16:19:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:19:15,762 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-12-02 16:19:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 16:19:15,762 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-12-02 16:19:15,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:19:15,763 INFO L225 Difference]: With dead ends: 39 [2020-12-02 16:19:15,763 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 16:19:15,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 50.0s TimeCoverageRelationStatistics Valid=42, Invalid=83, Unknown=7, NotChecked=0, Total=132 [2020-12-02 16:19:15,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 16:19:15,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 16:19:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 16:19:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 16:19:15,765 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-02 16:19:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:19:15,765 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 16:19:15,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 16:19:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 16:19:15,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 16:19:15,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 16:19:15,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 16:19:19,098 WARN L197 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 60 DAG size of output: 7 [2020-12-02 16:19:27,284 WARN L197 SmtUtils]: Spent 8.00 s on a formula simplification. DAG size of input: 91 DAG size of output: 35 [2020-12-02 16:19:27,288 INFO L262 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-12-02 16:19:27,288 INFO L262 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-12-02 16:19:27,288 INFO L262 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-12-02 16:19:27,288 INFO L262 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-12-02 16:19:27,288 INFO L258 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) [2020-12-02 16:19:27,288 INFO L262 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-12-02 16:19:27,288 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-02 16:19:27,288 INFO L258 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-12-02 16:19:27,289 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 16:19:27,289 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 16:19:27,289 INFO L262 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-12-02 16:19:27,289 INFO L262 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-12-02 16:19:27,289 INFO L262 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-12-02 16:19:27,289 INFO L262 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-12-02 16:19:27,289 INFO L265 CegarLoopResult]: At program point L129(lines 112 130) the Hoare annotation is: true [2020-12-02 16:19:27,289 INFO L262 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-12-02 16:19:27,289 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-12-02 16:19:27,290 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= roundNearestTiesToEven ~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet29_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet28_6| (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet28_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet28_6|))) (.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet27_6|))) (.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 30 23) |v_ULTIMATE.start_main_#t~nondet29_6|) ((_ extract 22 0) |v_ULTIMATE.start_main_#t~nondet29_6|)))) (and (= (fp.div ~CRM .cse0 .cse1) (fp ((_ extract 31 31) ULTIMATE.start_fmod_float_~x) ((_ extract 30 23) ULTIMATE.start_fmod_float_~x) ((_ extract 22 0) ULTIMATE.start_fmod_float_~x))) (= ((_ to_fp 8 24) ~CRM 1.0) .cse2) (= .cse0 (fp.neg .cse2)) (= (_ +zero 8 24) .cse1))))) [2020-12-02 16:19:27,290 INFO L262 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-12-02 16:19:27,290 INFO L262 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-12-02 16:19:27,290 INFO L258 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (not (let ((.cse0 (fp ((_ extract 31 31) |ULTIMATE.start_fmod_float_#res|) ((_ extract 30 23) |ULTIMATE.start_fmod_float_#res|) ((_ extract 22 0) |ULTIMATE.start_fmod_float_#res|)))) (fp.eq .cse0 .cse0))) [2020-12-02 16:19:27,290 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-12-02 16:19:27,290 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 16:19:27,290 INFO L262 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-12-02 16:19:27,291 INFO L258 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-12-02 16:19:27,291 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2020-12-02 16:19:27,291 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-12-02 16:19:27,291 INFO L258 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-12-02 16:19:27,291 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-12-02 16:19:27,291 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-12-02 16:19:27,291 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 16:19:27,291 INFO L262 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-12-02 16:19:27,291 INFO L262 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2020-12-02 16:19:27,292 INFO L262 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-12-02 16:19:27,292 INFO L262 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-12-02 16:19:27,292 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-12-02 16:19:27,292 INFO L262 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-12-02 16:19:27,292 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-02 16:19:27,292 INFO L258 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-12-02 16:19:27,292 INFO L262 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-12-02 16:19:27,293 INFO L262 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-12-02 16:19:27,293 INFO L258 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-12-02 16:19:27,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 16:19:27,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 16:19:27,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,318 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,322 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:19:27 BoogieIcfgContainer [2020-12-02 16:19:27,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 16:19:27,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 16:19:27,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 16:19:27,326 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 16:19:27,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:18:00" (3/4) ... [2020-12-02 16:19:27,331 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 16:19:27,351 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-02 16:19:27,352 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-02 16:19:27,352 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 16:19:27,353 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 16:19:27,390 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~roundNearestTiesToEven == unknown-~CRM-unknown && (\exists v_ULTIMATE.start_main_#t~nondet29_6 : bv32, v_ULTIMATE.start_main_#t~nondet28_6 : bv32, v_ULTIMATE.start_main_#t~nondet27_6 : bv32 :: ((~fp.div~FLOAT(unknown-~CRM-unknown, ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet28_6[31:31], v_ULTIMATE.start_main_#t~nondet28_6[30:23], v_ULTIMATE.start_main_#t~nondet28_6[22:0]), ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet29_6[31:31], v_ULTIMATE.start_main_#t~nondet29_6[30:23], v_ULTIMATE.start_main_#t~nondet29_6[22:0])) == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) && ~to_fp~LONGDOUBLE(unknown-~CRM-unknown, 1.0) == ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet27_6[31:31], v_ULTIMATE.start_main_#t~nondet27_6[30:23], v_ULTIMATE.start_main_#t~nondet27_6[22:0])) && ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet28_6[31:31], v_ULTIMATE.start_main_#t~nondet28_6[30:23], v_ULTIMATE.start_main_#t~nondet28_6[22:0]) == ~fp.neg~FLOAT(~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet27_6[31:31], v_ULTIMATE.start_main_#t~nondet27_6[30:23], v_ULTIMATE.start_main_#t~nondet27_6[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet29_6[31:31], v_ULTIMATE.start_main_#t~nondet29_6[30:23], v_ULTIMATE.start_main_#t~nondet29_6[22:0])) [2020-12-02 16:19:27,436 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 16:19:27,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 16:19:27,439 INFO L168 Benchmark]: Toolchain (without parser) took 90488.89 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 22.0 MB in the beginning and 27.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-12-02 16:19:27,439 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 46.1 MB. Free memory was 24.1 MB in the beginning and 24.1 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:19:27,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.31 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.7 MB in the beginning and 30.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-02 16:19:27,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.61 ms. Allocated memory is still 58.7 MB. Free memory was 30.2 MB in the beginning and 28.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:19:27,443 INFO L168 Benchmark]: Boogie Preprocessor took 94.52 ms. Allocated memory is still 58.7 MB. Free memory was 28.0 MB in the beginning and 41.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 16:19:27,447 INFO L168 Benchmark]: RCFGBuilder took 3184.16 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 30.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-12-02 16:19:27,448 INFO L168 Benchmark]: TraceAbstraction took 86630.13 ms. Allocated memory is still 58.7 MB. Free memory was 30.4 MB in the beginning and 29.9 MB in the end (delta: 450.2 kB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:19:27,448 INFO L168 Benchmark]: Witness Printer took 111.75 ms. Allocated memory is still 58.7 MB. Free memory was 29.9 MB in the beginning and 27.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:19:27,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 46.1 MB. Free memory was 24.1 MB in the beginning and 24.1 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 398.31 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 21.7 MB in the beginning and 30.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.61 ms. Allocated memory is still 58.7 MB. Free memory was 30.2 MB in the beginning and 28.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.52 ms. Allocated memory is still 58.7 MB. Free memory was 28.0 MB in the beginning and 41.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3184.16 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 30.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 86630.13 ms. Allocated memory is still 58.7 MB. Free memory was 30.4 MB in the beginning and 29.9 MB in the end (delta: 450.2 kB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Witness Printer took 111.75 ms. Allocated memory is still 58.7 MB. Free memory was 29.9 MB in the beginning and 27.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,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[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0]), ~fp~LONGDOUBLE(\result[31:31], \result[30:23], \result[22:0])) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-12-02 16:19:27,475 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 16:19:27,475 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,475 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,478 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,478 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,478 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,478 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,478 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,479 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,479 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,479 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 16:19:27,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet28_6,QUANTIFIED] [2020-12-02 16:19:27,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet27_6,QUANTIFIED] [2020-12-02 16:19:27,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] [2020-12-02 16:19:27,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet29_6,QUANTIFIED] Derived loop invariant: ~roundNearestTiesToEven == unknown-~CRM-unknown && (\exists v_ULTIMATE.start_main_#t~nondet29_6 : bv32, v_ULTIMATE.start_main_#t~nondet28_6 : bv32, v_ULTIMATE.start_main_#t~nondet27_6 : bv32 :: ((~fp.div~FLOAT(unknown-~CRM-unknown, ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet28_6[31:31], v_ULTIMATE.start_main_#t~nondet28_6[30:23], v_ULTIMATE.start_main_#t~nondet28_6[22:0]), ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet29_6[31:31], v_ULTIMATE.start_main_#t~nondet29_6[30:23], v_ULTIMATE.start_main_#t~nondet29_6[22:0])) == ~fp~LONGDOUBLE(x[31:31], x[30:23], x[22:0]) && ~to_fp~LONGDOUBLE(unknown-~CRM-unknown, 1.0) == ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet27_6[31:31], v_ULTIMATE.start_main_#t~nondet27_6[30:23], v_ULTIMATE.start_main_#t~nondet27_6[22:0])) && ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet28_6[31:31], v_ULTIMATE.start_main_#t~nondet28_6[30:23], v_ULTIMATE.start_main_#t~nondet28_6[22:0]) == ~fp.neg~FLOAT(~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet27_6[31:31], v_ULTIMATE.start_main_#t~nondet27_6[30:23], v_ULTIMATE.start_main_#t~nondet27_6[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_ULTIMATE.start_main_#t~nondet29_6[31:31], v_ULTIMATE.start_main_#t~nondet29_6[30:23], v_ULTIMATE.start_main_#t~nondet29_6[22:0])) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 75.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 45.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 15 SDslu, 265 SDs, 0 SdLazy, 30 SolverSat, 4 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 64.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 92 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 290 FormulaSimplificationTreeSizeReductionInter, 11.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 27.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 19 QuantifiedInterpolants, 17770 SizeOfPredicates, 17 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...