./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 a4ecdabc 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-a4ecdab [2020-10-24 23:27:17,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:27:17,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:27:17,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:27:17,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:27:17,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:27:17,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:27:17,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:27:17,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:27:17,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:27:17,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:27:17,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:27:17,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:27:17,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:27:17,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:27:17,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:27:17,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:27:17,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:27:17,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:27:17,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:27:17,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:27:17,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:27:17,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:27:17,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:27:17,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:27:17,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:27:17,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:27:17,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:27:17,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:27:17,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:27:17,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:27:17,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:27:17,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:27:17,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:27:17,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:27:17,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:27:17,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:27:17,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:27:17,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:27:17,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:27:17,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:27:17,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:27:17,807 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:27:17,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:27:17,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:27:17,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:27:17,812 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:27:17,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:27:17,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:27:17,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:27:17,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:27:17,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:27:17,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:27:17,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:27:17,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:27:17,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:27:17,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:27:17,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:27:17,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:27:17,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:27:17,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:27:17,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:27:17,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:27:17,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:27:17,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:27:17,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:27:17,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:27:17,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:27:17,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:27:17,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:27:17,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:27:17,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0f4a3f6b8eda4abc4e025ff55c76ee8ad620a8 [2020-10-24 23:27:18,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:27:18,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:27:18,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:27:18,342 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:27:18,344 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:27:18,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2020-10-24 23:27:18,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c86b60a/4c77d44ddade465bad343ce9f81c8471/FLAG61e6a257a [2020-10-24 23:27:19,059 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:27:19,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2020-10-24 23:27:19,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c86b60a/4c77d44ddade465bad343ce9f81c8471/FLAG61e6a257a [2020-10-24 23:27:19,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c86b60a/4c77d44ddade465bad343ce9f81c8471 [2020-10-24 23:27:19,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:27:19,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:27:19,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:27:19,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:27:19,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:27:19,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7c74c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19, skipping insertion in model container [2020-10-24 23:27:19,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:27:19,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:27:19,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:27:19,709 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:27:19,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:27:19,748 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:27:19,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19 WrapperNode [2020-10-24 23:27:19,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:27:19,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:27:19,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:27:19,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:27:19,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:27:19,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:27:19,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:27:19,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:27:19,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (1/1) ... [2020-10-24 23:27:19,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:27:19,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:27:19,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:27:19,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:27:19,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (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 [2020-10-24 23:27:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:27:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:27:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:27:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:27:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:27:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:27:19,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:27:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:27:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:27:20,195 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:27:20,196 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:27:20,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:27:20 BoogieIcfgContainer [2020-10-24 23:27:20,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:27:20,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:27:20,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:27:20,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:27:20,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:27:19" (1/3) ... [2020-10-24 23:27:20,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2480f197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:27:20, skipping insertion in model container [2020-10-24 23:27:20,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:19" (2/3) ... [2020-10-24 23:27:20,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2480f197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:27:20, skipping insertion in model container [2020-10-24 23:27:20,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:27:20" (3/3) ... [2020-10-24 23:27:20,209 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2020-10-24 23:27:20,224 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:27:20,229 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:27:20,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:27:20,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:27:20,280 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:27:20,280 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:27:20,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:27:20,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:27:20,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:27:20,281 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:27:20,281 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:27:20,299 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-24 23:27:20,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:27:20,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:27:20,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:27:20,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:27:20,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:27:20,313 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2020-10-24 23:27:20,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:27:20,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465305883] [2020-10-24 23:27:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:27:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:27:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:27:20,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465305883] [2020-10-24 23:27:20,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:27:20,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:27:20,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670148320] [2020-10-24 23:27:20,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:27:20,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:27:20,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:27:20,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:27:20,519 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-10-24 23:27:20,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:27:20,541 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2020-10-24 23:27:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:27:20,542 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:27:20,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:27:20,554 INFO L225 Difference]: With dead ends: 33 [2020-10-24 23:27:20,554 INFO L226 Difference]: Without dead ends: 14 [2020-10-24 23:27:20,558 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 [2020-10-24 23:27:20,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-24 23:27:20,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-24 23:27:20,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-24 23:27:20,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-10-24 23:27:20,604 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2020-10-24 23:27:20,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:27:20,604 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-10-24 23:27:20,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:27:20,605 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-10-24 23:27:20,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:27:20,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:27:20,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:27:20,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:27:20,609 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:27:20,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:27:20,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2020-10-24 23:27:20,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:27:20,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426013336] [2020-10-24 23:27:20,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:27:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:27:20,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:27:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:27:20,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:27:20,815 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:27:20,815 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:27:20,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:27:20,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:27:20 BoogieIcfgContainer [2020-10-24 23:27:20,854 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:27:20,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:27:20,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:27:20,856 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:27:20,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:27:20" (3/4) ... [2020-10-24 23:27:20,861 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:27:20,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:27:20,865 INFO L168 Benchmark]: Toolchain (without parser) took 1431.21 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 51.5 MB in the end (delta: -18.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:27:20,866 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 19.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:27:20,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.69 ms. Allocated memory is still 56.6 MB. Free memory was 32.7 MB in the beginning and 36.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:20,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.64 ms. Allocated memory is still 56.6 MB. Free memory was 36.0 MB in the beginning and 34.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:20,869 INFO L168 Benchmark]: Boogie Preprocessor took 32.45 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 33.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:20,871 INFO L168 Benchmark]: RCFGBuilder took 370.59 ms. Allocated memory is still 56.6 MB. Free memory was 33.2 MB in the beginning and 31.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:20,872 INFO L168 Benchmark]: TraceAbstraction took 654.21 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 31.1 MB in the beginning and 52.0 MB in the end (delta: -20.9 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:20,873 INFO L168 Benchmark]: Witness Printer took 6.76 ms. Allocated memory is still 69.2 MB. Free memory was 52.0 MB in the beginning and 51.5 MB in the end (delta: 445.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:27:20,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 19.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.69 ms. Allocated memory is still 56.6 MB. Free memory was 32.7 MB in the beginning and 36.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.64 ms. Allocated memory is still 56.6 MB. Free memory was 36.0 MB in the beginning and 34.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.45 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 33.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 370.59 ms. Allocated memory is still 56.6 MB. Free memory was 33.2 MB in the beginning and 31.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 654.21 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 31.1 MB in the beginning and 52.0 MB in the end (delta: -20.9 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.76 ms. Allocated memory is still 69.2 MB. Free memory was 52.0 MB in the beginning and 51.5 MB in the end (delta: 445.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 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: 0.5s, 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-a4ecdab [2020-10-24 23:27:23,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:27:23,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:27:23,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:27:23,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:27:23,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:27:23,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:27:23,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:27:23,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:27:23,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:27:23,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:27:23,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:27:23,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:27:23,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:27:23,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:27:23,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:27:23,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:27:23,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:27:23,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:27:23,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:27:23,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:27:23,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:27:23,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:27:23,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:27:23,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:27:23,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:27:23,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:27:23,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:27:23,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:27:23,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:27:23,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:27:23,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:27:23,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:27:23,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:27:23,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:27:23,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:27:23,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:27:23,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:27:23,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:27:23,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:27:23,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:27:23,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:27:23,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:27:23,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:27:23,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:27:23,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:27:23,587 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:27:23,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:27:23,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:27:23,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:27:23,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:27:23,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:27:23,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:27:23,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:27:23,590 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:27:23,590 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:27:23,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:27:23,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:27:23,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:27:23,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:27:23,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:27:23,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:27:23,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:27:23,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:27:23,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:27:23,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:27:23,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:27:23,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:27:23,595 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:27:23,596 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:27:23,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:27:23,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:27:23,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:27:23,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0f4a3f6b8eda4abc4e025ff55c76ee8ad620a8 [2020-10-24 23:27:23,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:27:24,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:27:24,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:27:24,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:27:24,027 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:27:24,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2020-10-24 23:27:24,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/648aa3de2/6e1c3a71fbf84191aa8e5796eb9d2421/FLAGb38209861 [2020-10-24 23:27:24,845 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:27:24,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2020-10-24 23:27:24,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/648aa3de2/6e1c3a71fbf84191aa8e5796eb9d2421/FLAGb38209861 [2020-10-24 23:27:25,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/648aa3de2/6e1c3a71fbf84191aa8e5796eb9d2421 [2020-10-24 23:27:25,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:27:25,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:27:25,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:27:25,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:27:25,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:27:25,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598cc31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25, skipping insertion in model container [2020-10-24 23:27:25,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:27:25,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:27:25,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:27:25,474 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:27:25,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:27:25,523 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:27:25,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25 WrapperNode [2020-10-24 23:27:25,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:27:25,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:27:25,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:27:25,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:27:25,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:27:25,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:27:25,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:27:25,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:27:25,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (1/1) ... [2020-10-24 23:27:25,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:27:25,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:27:25,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:27:25,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:27:25,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (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 [2020-10-24 23:27:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:27:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:27:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:27:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:27:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:27:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:27:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:27:25,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:27:25,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:27:26,045 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:27:26,046 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:27:26,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:27:26 BoogieIcfgContainer [2020-10-24 23:27:26,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:27:26,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:27:26,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:27:26,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:27:26,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:27:25" (1/3) ... [2020-10-24 23:27:26,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd43242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:27:26, skipping insertion in model container [2020-10-24 23:27:26,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:27:25" (2/3) ... [2020-10-24 23:27:26,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd43242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:27:26, skipping insertion in model container [2020-10-24 23:27:26,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:27:26" (3/3) ... [2020-10-24 23:27:26,061 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2020-10-24 23:27:26,077 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:27:26,085 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:27:26,115 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:27:26,189 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:27:26,189 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:27:26,189 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:27:26,190 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:27:26,190 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:27:26,190 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:27:26,190 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:27:26,190 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:27:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-24 23:27:26,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:27:26,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:27:26,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:27:26,225 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:27:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:27:26,236 INFO L82 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2020-10-24 23:27:26,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:27:26,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231944236] [2020-10-24 23:27:26,254 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 [2020-10-24 23:27:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:27:26,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:27:26,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:27:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:27:26,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:27:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:27:26,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231944236] [2020-10-24 23:27:26,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:27:26,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:27:26,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855053452] [2020-10-24 23:27:26,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:27:26,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:27:26,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:27:26,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:27:26,506 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-10-24 23:27:26,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:27:26,531 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2020-10-24 23:27:26,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:27:26,533 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:27:26,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:27:26,565 INFO L225 Difference]: With dead ends: 33 [2020-10-24 23:27:26,565 INFO L226 Difference]: Without dead ends: 14 [2020-10-24 23:27:26,569 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 [2020-10-24 23:27:26,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-24 23:27:26,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-24 23:27:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-24 23:27:26,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-10-24 23:27:26,619 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2020-10-24 23:27:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:27:26,620 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-10-24 23:27:26,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:27:26,621 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-10-24 23:27:26,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:27:26,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:27:26,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:27:26,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:27:26,846 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:27:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:27:26,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2020-10-24 23:27:26,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:27:26,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425506036] [2020-10-24 23:27:26,856 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 [2020-10-24 23:27:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:27:26,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-24 23:27:26,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:27:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:27:27,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:27:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:27:27,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425506036] [2020-10-24 23:27:27,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:27:27,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-10-24 23:27:27,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167041419] [2020-10-24 23:27:27,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-24 23:27:27,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:27:27,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-24 23:27:27,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:27:27,429 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 12 states. [2020-10-24 23:27:27,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:27:27,946 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-24 23:27:27,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:27:27,946 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-10-24 23:27:27,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:27:27,947 INFO L225 Difference]: With dead ends: 14 [2020-10-24 23:27:27,947 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:27:27,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-24 23:27:27,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:27:27,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:27:27,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:27:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:27:27,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-24 23:27:27,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:27:27,950 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:27:27,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-24 23:27:27,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:27:27,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:27:28,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:27:28,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:27:28,256 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:27:28,257 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|))) [2020-10-24 23:27:28,257 INFO L274 CegarLoopResult]: For program point L21(lines 21 25) no Hoare annotation was computed. [2020-10-24 23:27:28,257 INFO L274 CegarLoopResult]: For program point L21-1(lines 14 32) no Hoare annotation was computed. [2020-10-24 23:27:28,258 INFO L274 CegarLoopResult]: For program point L50(lines 50 53) no Hoare annotation was computed. [2020-10-24 23:27:28,258 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:27:28,258 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:27:28,258 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:27:28,258 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:27:28,258 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:27:28,259 INFO L274 CegarLoopResult]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-10-24 23:27:28,259 INFO L274 CegarLoopResult]: For program point L26-1(lines 14 32) no Hoare annotation was computed. [2020-10-24 23:27:28,259 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2020-10-24 23:27:28,259 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:27:28,259 INFO L277 CegarLoopResult]: At program point L55(lines 37 56) the Hoare annotation is: true [2020-10-24 23:27:28,259 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-10-24 23:27:28,259 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)) [2020-10-24 23:27:28,260 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|))) [2020-10-24 23:27:28,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,271 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,271 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,271 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,280 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,280 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,280 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,281 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,281 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,281 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,283 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,284 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,284 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,288 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,288 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:27:28 BoogieIcfgContainer [2020-10-24 23:27:28,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:27:28,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:27:28,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:27:28,292 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:27:28,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:27:26" (3/4) ... [2020-10-24 23:27:28,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:27:28,310 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 23:27:28,310 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-24 23:27:28,311 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 23:27:28,311 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:27:28,352 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:27:28,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:27:28,356 INFO L168 Benchmark]: Toolchain (without parser) took 3147.51 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.4 MB in the beginning and 28.1 MB in the end (delta: -622.3 kB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:28,357 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory is still 34.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:27:28,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.88 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 29.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:28,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.86 ms. Allocated memory is still 50.3 MB. Free memory was 29.6 MB in the beginning and 28.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:28,359 INFO L168 Benchmark]: Boogie Preprocessor took 38.11 ms. Allocated memory is still 50.3 MB. Free memory was 28.1 MB in the beginning and 26.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:28,360 INFO L168 Benchmark]: RCFGBuilder took 439.20 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 24.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:28,361 INFO L168 Benchmark]: TraceAbstraction took 2241.04 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 30.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:28,362 INFO L168 Benchmark]: Witness Printer took 61.15 ms. Allocated memory is still 60.8 MB. Free memory was 30.2 MB in the beginning and 28.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:27:28,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory is still 34.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.88 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 29.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.86 ms. Allocated memory is still 50.3 MB. Free memory was 29.6 MB in the beginning and 28.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.11 ms. Allocated memory is still 50.3 MB. Free memory was 28.1 MB in the beginning and 26.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 439.20 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 24.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2241.04 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 30.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Witness Printer took 61.15 ms. Allocated memory is still 60.8 MB. Free memory was 30.2 MB in the beginning and 28.1 MB in the end (delta: 2.1 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 [2020-10-24 23:27:28,382 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,382 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,384 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,384 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,386 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,386 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 [2020-10-24 23:27:28,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,388 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,389 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,390 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,391 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2020-10-24 23:27:28,391 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: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.7s 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...