./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1381.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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 ../sv-benchmarks/c/float-newlib/float_req_bl_1381.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 fd0f4a3f6b8eda4abc4e025ff55c76ee8ad620a8 ............................................................................................................................................................................................................................................................................................. 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 ../sv-benchmarks/c/float-newlib/float_req_bl_1381.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 fd0f4a3f6b8eda4abc4e025ff55c76ee8ad620a8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:01:27,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:01:27,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:01:27,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:01:27,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:01:27,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:01:27,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:01:27,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:01:27,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:01:27,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:01:27,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:01:27,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:01:27,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:01:27,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:01:27,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:01:27,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:01:27,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:01:27,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:01:27,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:01:27,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:01:27,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:01:27,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:01:27,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:01:27,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:01:27,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:01:27,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:01:27,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:01:27,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:01:27,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:01:27,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:01:27,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:01:27,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:01:27,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:01:27,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:01:27,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:01:27,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:01:27,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:01:27,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:01:27,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:01:27,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:01:27,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:01:27,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:01:27,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:01:27,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:01:27,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:01:27,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:01:27,892 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:01:27,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:01:27,893 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:01:27,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:01:27,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:01:27,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:01:27,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:01:27,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:01:27,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:01:27,895 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:01:27,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:01:27,895 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:01:27,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:01:27,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:01:27,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:01:27,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:01:27,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:01:27,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:01:27,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:01:27,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:01:27,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:01:27,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:01:27,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:01:27,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:01:27,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:01:27,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0f4a3f6b8eda4abc4e025ff55c76ee8ad620a8 [2020-10-25 22:01:28,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:01:28,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:01:28,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:01:28,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:01:28,396 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:01:28,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2020-10-25 22:01:28,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f7660af/7aa996d7f9234a6c9582ec2fd853c918/FLAG29e342d6f [2020-10-25 22:01:29,152 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:01:29,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2020-10-25 22:01:29,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f7660af/7aa996d7f9234a6c9582ec2fd853c918/FLAG29e342d6f [2020-10-25 22:01:29,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0f7660af/7aa996d7f9234a6c9582ec2fd853c918 [2020-10-25 22:01:29,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:01:29,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:01:29,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:01:29,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:01:29,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:01:29,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed3756a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29, skipping insertion in model container [2020-10-25 22:01:29,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:01:29,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:01:29,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:01:29,752 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:01:29,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:01:29,794 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:01:29,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29 WrapperNode [2020-10-25 22:01:29,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:01:29,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:01:29,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:01:29,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:01:29,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:01:29,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:01:29,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:01:29,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:01:29,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... [2020-10-25 22:01:29,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:01:29,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:01:29,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:01:29,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:01:29,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:01:29,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 22:01:29,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:01:29,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 22:01:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 22:01:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 22:01:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:01:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:01:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 22:01:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 22:01:30,277 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:01:30,278 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-25 22:01:30,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:01:30 BoogieIcfgContainer [2020-10-25 22:01:30,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:01:30,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:01:30,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:01:30,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:01:30,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:01:29" (1/3) ... [2020-10-25 22:01:30,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fef1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:01:30, skipping insertion in model container [2020-10-25 22:01:30,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:29" (2/3) ... [2020-10-25 22:01:30,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fef1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:01:30, skipping insertion in model container [2020-10-25 22:01:30,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:01:30" (3/3) ... [2020-10-25 22:01:30,291 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2020-10-25 22:01:30,310 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:01:30,318 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 22:01:30,349 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 22:01:30,417 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:01:30,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:01:30,417 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:01:30,417 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:01:30,417 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:01:30,417 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:01:30,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:01:30,418 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:01:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-25 22:01:30,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 22:01:30,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:01:30,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:01:30,455 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:01:30,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:01:30,463 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2020-10-25 22:01:30,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:01:30,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760020304] [2020-10-25 22:01:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:01:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:01:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:01:30,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760020304] [2020-10-25 22:01:30,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:01:30,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 22:01:30,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116834085] [2020-10-25 22:01:30,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 22:01:30,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:01:30,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 22:01:30,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:01:30,776 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-10-25 22:01:30,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:01:30,810 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2020-10-25 22:01:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 22:01:30,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 22:01:30,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:01:30,824 INFO L225 Difference]: With dead ends: 33 [2020-10-25 22:01:30,824 INFO L226 Difference]: Without dead ends: 14 [2020-10-25 22:01:30,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:01:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-25 22:01:30,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-25 22:01:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-25 22:01:30,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-10-25 22:01:30,891 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2020-10-25 22:01:30,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:01:30,892 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-10-25 22:01:30,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 22:01:30,892 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-10-25 22:01:30,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 22:01:30,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:01:30,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:01:30,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 22:01:30,895 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:01:30,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:01:30,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2020-10-25 22:01:30,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:01:30,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952042249] [2020-10-25 22:01:30,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:01:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 22:01:31,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 22:01:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 22:01:31,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 22:01:31,151 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 22:01:31,152 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 22:01:31,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 22:01:31,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:01:31 BoogieIcfgContainer [2020-10-25 22:01:31,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:01:31,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:01:31,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:01:31,229 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:01:31,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:01:30" (3/4) ... [2020-10-25 22:01:31,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 22:01:31,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:01:31,240 INFO L168 Benchmark]: Toolchain (without parser) took 1737.34 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.4 MB in the beginning and 31.3 MB in the end (delta: -12.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:01:31,241 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 41.9 MB. Free memory is still 24.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:01:31,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.86 ms. Allocated memory is still 41.9 MB. Free memory was 17.8 MB in the beginning and 19.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:31,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.07 ms. Allocated memory is still 41.9 MB. Free memory was 19.2 MB in the beginning and 27.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:31,246 INFO L168 Benchmark]: Boogie Preprocessor took 31.00 ms. Allocated memory is still 41.9 MB. Free memory was 27.4 MB in the beginning and 26.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:01:31,248 INFO L168 Benchmark]: RCFGBuilder took 402.29 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.1 MB in the beginning and 29.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:31,249 INFO L168 Benchmark]: TraceAbstraction took 944.81 ms. Allocated memory is still 50.3 MB. Free memory was 28.6 MB in the beginning and 31.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:31,251 INFO L168 Benchmark]: Witness Printer took 5.67 ms. Allocated memory is still 50.3 MB. Free memory was 31.6 MB in the beginning and 31.3 MB in the end (delta: 254.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:01:31,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 41.9 MB. Free memory is still 24.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.86 ms. Allocated memory is still 41.9 MB. Free memory was 17.8 MB in the beginning and 19.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.07 ms. Allocated memory is still 41.9 MB. Free memory was 19.2 MB in the beginning and 27.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.00 ms. Allocated memory is still 41.9 MB. Free memory was 27.4 MB in the beginning and 26.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 402.29 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 26.1 MB in the beginning and 29.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 944.81 ms. Allocated memory is still 50.3 MB. Free memory was 28.6 MB in the beginning and 31.6 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.67 ms. Allocated memory is still 50.3 MB. Free memory was 31.6 MB in the beginning and 31.3 MB in the end (delta: 254.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 35, overapproximation of bitwiseOr at line 28, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L45] float x = 0.0f / 0.0f; [L46] float y = __VERIFIER_nondet_float(); [L15] __uint32_t ix, iy; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (y) [L24] EXPR gf_u.word [L24] (iy) = gf_u.word [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L29] EXPR sf_u.value [L29] (x) = sf_u.value [L31] return x; [L47] float res = copysign_float(x, y); [L35] return x != x; [L50] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1381.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 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=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 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 0.2.0-5485861 [2020-10-25 22:01:33,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:01:33,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:01:34,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:01:34,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:01:34,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:01:34,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:01:34,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:01:34,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:01:34,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:01:34,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:01:34,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:01:34,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:01:34,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:01:34,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:01:34,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:01:34,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:01:34,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:01:34,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:01:34,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:01:34,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:01:34,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:01:34,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:01:34,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:01:34,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:01:34,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:01:34,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:01:34,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:01:34,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:01:34,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:01:34,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:01:34,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:01:34,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:01:34,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:01:34,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:01:34,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:01:34,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:01:34,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:01:34,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:01:34,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:01:34,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:01:34,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 22:01:34,189 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:01:34,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:01:34,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:01:34,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:01:34,195 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:01:34,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:01:34,196 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:01:34,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:01:34,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:01:34,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:01:34,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:01:34,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:01:34,198 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 22:01:34,199 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 22:01:34,199 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:01:34,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:01:34,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:01:34,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:01:34,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:01:34,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:01:34,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:01:34,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:01:34,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:01:34,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:01:34,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:01:34,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:01:34,202 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 22:01:34,203 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 22:01:34,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:01:34,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:01:34,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 22:01:34,204 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0f4a3f6b8eda4abc4e025ff55c76ee8ad620a8 [2020-10-25 22:01:34,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:01:34,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:01:34,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:01:34,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:01:34,685 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:01:34,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2020-10-25 22:01:34,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c123cac01/7fdc58d97ba24bd9badd64a96cccdfab/FLAG5c17dcd43 [2020-10-25 22:01:35,460 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:01:35,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2020-10-25 22:01:35,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c123cac01/7fdc58d97ba24bd9badd64a96cccdfab/FLAG5c17dcd43 [2020-10-25 22:01:35,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c123cac01/7fdc58d97ba24bd9badd64a96cccdfab [2020-10-25 22:01:35,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:01:35,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:01:35,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:01:35,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:01:35,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:01:35,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:01:35" (1/1) ... [2020-10-25 22:01:35,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d92516f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:35, skipping insertion in model container [2020-10-25 22:01:35,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:01:35" (1/1) ... [2020-10-25 22:01:35,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:01:35,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:01:36,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:01:36,104 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:01:36,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:01:36,151 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:01:36,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36 WrapperNode [2020-10-25 22:01:36,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:01:36,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:01:36,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:01:36,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:01:36,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:01:36,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:01:36,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:01:36,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:01:36,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... [2020-10-25 22:01:36,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:01:36,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:01:36,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:01:36,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:01:36,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:01:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 22:01:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:01:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-25 22:01:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 22:01:36,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:01:36,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:01:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-25 22:01:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 22:01:36,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 22:01:36,878 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:01:36,879 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-25 22:01:36,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:01:36 BoogieIcfgContainer [2020-10-25 22:01:36,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:01:36,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:01:36,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:01:36,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:01:36,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:01:35" (1/3) ... [2020-10-25 22:01:36,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5784b102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:01:36, skipping insertion in model container [2020-10-25 22:01:36,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:01:36" (2/3) ... [2020-10-25 22:01:36,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5784b102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:01:36, skipping insertion in model container [2020-10-25 22:01:36,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:01:36" (3/3) ... [2020-10-25 22:01:36,898 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2020-10-25 22:01:36,917 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:01:36,924 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 22:01:36,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 22:01:36,994 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:01:36,994 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:01:36,994 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:01:36,995 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:01:36,995 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:01:36,995 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:01:36,995 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:01:36,995 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:01:37,014 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-25 22:01:37,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 22:01:37,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:01:37,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:01:37,023 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:01:37,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:01:37,032 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2020-10-25 22:01:37,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:01:37,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392550101] [2020-10-25 22:01:37,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 22:01:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:01:37,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 22:01:37,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:01:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:01:37,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:01:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:01:37,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392550101] [2020-10-25 22:01:37,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:01:37,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 22:01:37,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027632017] [2020-10-25 22:01:37,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 22:01:37,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:01:37,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 22:01:37,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:01:37,221 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-10-25 22:01:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:01:37,241 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2020-10-25 22:01:37,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 22:01:37,243 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 22:01:37,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:01:37,253 INFO L225 Difference]: With dead ends: 33 [2020-10-25 22:01:37,254 INFO L226 Difference]: Without dead ends: 14 [2020-10-25 22:01:37,257 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 [2020-10-25 22:01:37,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-25 22:01:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-25 22:01:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-25 22:01:37,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-10-25 22:01:37,297 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2020-10-25 22:01:37,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:01:37,298 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-10-25 22:01:37,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 22:01:37,299 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-10-25 22:01:37,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-25 22:01:37,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:01:37,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:01:37,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 22:01:37,519 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:01:37,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:01:37,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2020-10-25 22:01:37,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:01:37,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007791181] [2020-10-25 22:01:37,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-25 22:01:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:01:37,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-25 22:01:37,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:01:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:01:37,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:01:38,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:01:38,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007791181] [2020-10-25 22:01:38,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:01:38,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-10-25 22:01:38,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053904936] [2020-10-25 22:01:38,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-25 22:01:38,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:01:38,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-25 22:01:38,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-25 22:01:38,064 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 12 states. [2020-10-25 22:01:38,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:01:38,584 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-25 22:01:38,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 22:01:38,584 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-10-25 22:01:38,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:01:38,584 INFO L225 Difference]: With dead ends: 14 [2020-10-25 22:01:38,584 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 22:01:38,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-25 22:01:38,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 22:01:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 22:01:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 22:01:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 22:01:38,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-25 22:01:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:01:38,588 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 22:01:38,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-25 22:01:38,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 22:01:38,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:01:38,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 22:01:38,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 22:01:38,890 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:01:38,891 INFO L270 CegarLoopResult]: At program point L31(lines 14 32) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_copysign_float_~x ULTIMATE.start_copysign_float_~x)) (forall ((ULTIMATE.start_copysign_float_~iy~0 (_ BitVec 32))) (not (let ((.cse0 (let ((.cse1 (bvor (bvand (_ bv2147483647 32) ULTIMATE.start_copysign_float_~ix~0) (bvand (_ bv2147483648 32) ULTIMATE.start_copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.eq .cse0 .cse0)))) (not (fp.eq |ULTIMATE.start_copysign_float_#res| |ULTIMATE.start_copysign_float_#res|))) [2020-10-25 22:01:38,891 INFO L274 CegarLoopResult]: For program point L21(lines 21 25) no Hoare annotation was computed. [2020-10-25 22:01:38,892 INFO L274 CegarLoopResult]: For program point L21-1(lines 14 32) no Hoare annotation was computed. [2020-10-25 22:01:38,892 INFO L274 CegarLoopResult]: For program point L50(lines 50 53) no Hoare annotation was computed. [2020-10-25 22:01:38,892 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 22:01:38,893 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 22:01:38,893 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:01:38,893 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:01:38,893 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:01:38,893 INFO L274 CegarLoopResult]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-10-25 22:01:38,893 INFO L274 CegarLoopResult]: For program point L26-1(lines 14 32) no Hoare annotation was computed. [2020-10-25 22:01:38,893 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2020-10-25 22:01:38,893 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 22:01:38,894 INFO L277 CegarLoopResult]: At program point L55(lines 37 56) the Hoare annotation is: true [2020-10-25 22:01:38,894 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-10-25 22:01:38,894 INFO L270 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (not (fp.eq ULTIMATE.start_copysign_float_~x ULTIMATE.start_copysign_float_~x)) [2020-10-25 22:01:38,897 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_copysign_float_~x ULTIMATE.start_copysign_float_~x)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (forall ((ULTIMATE.start_copysign_float_~iy~0 (_ BitVec 32))) (not (let ((.cse0 (let ((.cse1 (bvor (bvand (_ bv2147483647 32) ULTIMATE.start_copysign_float_~ix~0) (bvand (_ bv2147483648 32) ULTIMATE.start_copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.eq .cse0 .cse0)))) (not (fp.eq |ULTIMATE.start_copysign_float_#res| |ULTIMATE.start_copysign_float_#res|))) [2020-10-25 22:01:38,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,925 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,926 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,926 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,926 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,926 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,927 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,927 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:38,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:01:38 BoogieIcfgContainer [2020-10-25 22:01:38,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:01:38,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:01:38,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:01:38,938 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:01:38,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:01:36" (3/4) ... [2020-10-25 22:01:38,945 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:01:38,960 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 22:01:38,961 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-25 22:01:38,961 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 22:01:38,961 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 22:01:39,035 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:01:39,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:01:39,038 INFO L168 Benchmark]: Toolchain (without parser) took 3211.22 ms. Allocated memory was 39.8 MB in the beginning and 58.7 MB in the end (delta: 18.9 MB). Free memory was 15.7 MB in the beginning and 39.7 MB in the end (delta: -23.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:39,039 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 39.8 MB. Free memory was 24.9 MB in the beginning and 24.8 MB in the end (delta: 23.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:01:39,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.94 ms. Allocated memory is still 48.2 MB. Free memory was 32.6 MB in the beginning and 22.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:39,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.25 ms. Allocated memory is still 48.2 MB. Free memory was 22.1 MB in the beginning and 20.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:01:39,042 INFO L168 Benchmark]: Boogie Preprocessor took 49.04 ms. Allocated memory is still 48.2 MB. Free memory was 20.6 MB in the beginning and 31.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:39,042 INFO L168 Benchmark]: RCFGBuilder took 632.86 ms. Allocated memory is still 48.2 MB. Free memory was 30.8 MB in the beginning and 27.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:39,049 INFO L168 Benchmark]: TraceAbstraction took 2049.11 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.6 MB in the beginning and 23.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:39,051 INFO L168 Benchmark]: Witness Printer took 97.27 ms. Allocated memory is still 58.7 MB. Free memory was 22.8 MB in the beginning and 39.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:39,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 39.8 MB. Free memory was 24.9 MB in the beginning and 24.8 MB in the end (delta: 23.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.94 ms. Allocated memory is still 48.2 MB. Free memory was 32.6 MB in the beginning and 22.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.25 ms. Allocated memory is still 48.2 MB. Free memory was 22.1 MB in the beginning and 20.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.04 ms. Allocated memory is still 48.2 MB. Free memory was 20.6 MB in the beginning and 31.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 632.86 ms. Allocated memory is still 48.2 MB. Free memory was 30.8 MB in the beginning and 27.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2049.11 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.6 MB in the beginning and 23.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Witness Printer took 97.27 ms. Allocated memory is still 58.7 MB. Free memory was 22.8 MB in the beginning and 39.7 MB in the end (delta: -16.9 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant [2020-10-25 22:01:39,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,087 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,088 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] Derived loop invariant: (!~fp.eq~FLOAT(x, x) && (forall ULTIMATE.start_copysign_float_~iy~0 : bv32 :: !~fp.eq~FLOAT(~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0]), ~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0])))) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant [2020-10-25 22:01:39,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,089 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,094 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,097 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,097 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,099 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,099 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-25 22:01:39,100 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] Derived loop invariant: ((!~fp.eq~FLOAT(x, x) && 1bv32 == \result) && (forall ULTIMATE.start_copysign_float_~iy~0 : bv32 :: !~fp.eq~FLOAT(~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0]), ~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0])))) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(x, x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 14 SDslu, 24 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 132 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 12 QuantifiedInterpolants, 4074 SizeOfPredicates, 15 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...