./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.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-benchs/inv_sqrt_Quake.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 b5a9a5f04ffebcbeddfcdcc0054cf362a3fa4d7b ......................................................................................................................................................................................................................................................................................... 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-benchs/inv_sqrt_Quake.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 b5a9a5f04ffebcbeddfcdcc0054cf362a3fa4d7b ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 22:27:23,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 22:27:23,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 22:27:23,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 22:27:23,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 22:27:23,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 22:27:23,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 22:27:23,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 22:27:23,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 22:27:23,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 22:27:23,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 22:27:23,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 22:27:23,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 22:27:23,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 22:27:23,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 22:27:23,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 22:27:23,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 22:27:23,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 22:27:23,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 22:27:23,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 22:27:23,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 22:27:23,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 22:27:23,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 22:27:23,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 22:27:23,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 22:27:23,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 22:27:23,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 22:27:23,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 22:27:23,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 22:27:23,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 22:27:23,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 22:27:23,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 22:27:23,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 22:27:23,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 22:27:23,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 22:27:23,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 22:27:23,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 22:27:23,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 22:27:23,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 22:27:23,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 22:27:23,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 22:27:23,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 22:27:23,930 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 22:27:23,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 22:27:23,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 22:27:23,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 22:27:23,935 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 22:27:23,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 22:27:23,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 22:27:23,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 22:27:23,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 22:27:23,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 22:27:23,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 22:27:23,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 22:27:23,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 22:27:23,939 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 22:27:23,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 22:27:23,939 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 22:27:23,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 22:27:23,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 22:27:23,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 22:27:23,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 22:27:23,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 22:27:23,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 22:27:23,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 22:27:23,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 22:27:23,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 22:27:23,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 22:27:23,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 22:27:23,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 22:27:23,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 22:27:23,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5a9a5f04ffebcbeddfcdcc0054cf362a3fa4d7b [2020-10-24 22:27:24,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 22:27:24,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 22:27:24,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 22:27:24,430 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 22:27:24,432 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 22:27:24,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2020-10-24 22:27:24,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e515f3d3d/d6c68133547543e4ac85a57ccaf00d64/FLAG01ca22a07 [2020-10-24 22:27:25,151 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 22:27:25,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2020-10-24 22:27:25,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e515f3d3d/d6c68133547543e4ac85a57ccaf00d64/FLAG01ca22a07 [2020-10-24 22:27:25,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e515f3d3d/d6c68133547543e4ac85a57ccaf00d64 [2020-10-24 22:27:25,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 22:27:25,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 22:27:25,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 22:27:25,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 22:27:25,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 22:27:25,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c732fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25, skipping insertion in model container [2020-10-24 22:27:25,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 22:27:25,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 22:27:25,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 22:27:25,767 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 22:27:25,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 22:27:25,809 INFO L208 MainTranslator]: Completed translation [2020-10-24 22:27:25,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25 WrapperNode [2020-10-24 22:27:25,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 22:27:25,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 22:27:25,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 22:27:25,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 22:27:25,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 22:27:25,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 22:27:25,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 22:27:25,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 22:27:25,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (1/1) ... [2020-10-24 22:27:25,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 22:27:25,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 22:27:25,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 22:27:25,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 22:27:25,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (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 22:27:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 22:27:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 22:27:25,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 22:27:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 22:27:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 22:27:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 22:27:25,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 22:27:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 22:27:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 22:27:26,242 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 22:27:26,243 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-24 22:27:26,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:27:26 BoogieIcfgContainer [2020-10-24 22:27:26,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 22:27:26,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 22:27:26,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 22:27:26,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 22:27:26,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:27:25" (1/3) ... [2020-10-24 22:27:26,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5960471d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:27:26, skipping insertion in model container [2020-10-24 22:27:26,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:25" (2/3) ... [2020-10-24 22:27:26,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5960471d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:27:26, skipping insertion in model container [2020-10-24 22:27:26,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:27:26" (3/3) ... [2020-10-24 22:27:26,261 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2020-10-24 22:27:26,276 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 22:27:26,282 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 22:27:26,300 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 22:27:26,362 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 22:27:26,363 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 22:27:26,363 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 22:27:26,363 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 22:27:26,363 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 22:27:26,363 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 22:27:26,363 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 22:27:26,364 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 22:27:26,400 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-10-24 22:27:26,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 22:27:26,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:27:26,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:27:26,408 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:27:26,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:27:26,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2020-10-24 22:27:26,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 22:27:26,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441511601] [2020-10-24 22:27:26,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 22:27:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:27:26,606 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 22:27:26,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441511601] [2020-10-24 22:27:26,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 22:27:26,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 22:27:26,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767772677] [2020-10-24 22:27:26,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 22:27:26,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 22:27:26,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 22:27:26,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 22:27:26,636 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-10-24 22:27:26,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 22:27:26,661 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-10-24 22:27:26,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 22:27:26,663 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-24 22:27:26,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 22:27:26,673 INFO L225 Difference]: With dead ends: 22 [2020-10-24 22:27:26,674 INFO L226 Difference]: Without dead ends: 8 [2020-10-24 22:27:26,677 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 22:27:26,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-24 22:27:26,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-24 22:27:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-24 22:27:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-10-24 22:27:26,717 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-10-24 22:27:26,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 22:27:26,718 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-10-24 22:27:26,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 22:27:26,719 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-10-24 22:27:26,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 22:27:26,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:27:26,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:27:26,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 22:27:26,720 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:27:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:27:26,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2020-10-24 22:27:26,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 22:27:26,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560947821] [2020-10-24 22:27:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 22:27:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 22:27:26,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 22:27:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 22:27:26,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 22:27:26,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 22:27:26,854 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 22:27:26,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 22:27:26,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:27:26 BoogieIcfgContainer [2020-10-24 22:27:26,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 22:27:26,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 22:27:26,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 22:27:26,908 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 22:27:26,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:27:26" (3/4) ... [2020-10-24 22:27:26,912 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 22:27:26,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 22:27:26,918 INFO L168 Benchmark]: Toolchain (without parser) took 1402.12 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 20.0 MB in the beginning and 25.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 22:27:26,920 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 41.9 MB. Free memory was 22.5 MB in the beginning and 22.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:27:26,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.55 ms. Allocated memory is still 41.9 MB. Free memory was 19.3 MB in the beginning and 20.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-24 22:27:26,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.67 ms. Allocated memory is still 41.9 MB. Free memory was 20.6 MB in the beginning and 19.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 22:27:26,926 INFO L168 Benchmark]: Boogie Preprocessor took 29.93 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 17.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:27:26,928 INFO L168 Benchmark]: RCFGBuilder took 360.52 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.9 MB in the beginning and 34.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-10-24 22:27:26,930 INFO L168 Benchmark]: TraceAbstraction took 653.83 ms. Allocated memory is still 50.3 MB. Free memory was 34.5 MB in the beginning and 25.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-10-24 22:27:26,933 INFO L168 Benchmark]: Witness Printer took 6.12 ms. Allocated memory is still 50.3 MB. Free memory was 25.6 MB in the beginning and 25.4 MB in the end (delta: 251.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:27:26,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 41.9 MB. Free memory was 22.5 MB in the beginning and 22.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.55 ms. Allocated memory is still 41.9 MB. Free memory was 19.3 MB in the beginning and 20.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.67 ms. Allocated memory is still 41.9 MB. Free memory was 20.6 MB in the beginning and 19.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.93 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 17.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 360.52 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.9 MB in the beginning and 34.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 653.83 ms. Allocated memory is still 50.3 MB. Free memory was 34.5 MB in the beginning and 25.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Witness Printer took 6.12 ms. Allocated memory is still 50.3 MB. Free memory was 25.6 MB in the beginning and 25.4 MB in the end (delta: 251.3 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 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryArithmeticFLOAToperation at line 22. Possible FailurePath: [L45] float a,r; [L47] a = __VERIFIER_nondet_float() [L11] COND FALSE !(!cond) [L22] float xhalf = 0.5f*x; [L23] union float_int i; [L24] i.f = x [L25] EXPR i.i [L25] i.i = 0x5f3759df - (i.i>>1) [L26] EXPR i.f [L26] x = i.f [L27] x = x*(1.5f-xhalf*x*x) [L28] return x; [L28] return x; [L50] r = InvSqrt(a) [L13] COND TRUE !(cond) [L3] __assert_fail("0", "inv_sqrt_Quake.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 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: 11 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=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 22:27:30,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 22:27:30,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 22:27:30,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 22:27:30,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 22:27:30,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 22:27:30,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 22:27:30,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 22:27:30,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 22:27:30,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 22:27:30,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 22:27:30,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 22:27:30,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 22:27:30,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 22:27:30,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 22:27:30,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 22:27:30,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 22:27:30,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 22:27:30,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 22:27:30,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 22:27:30,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 22:27:30,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 22:27:30,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 22:27:30,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 22:27:30,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 22:27:30,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 22:27:30,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 22:27:30,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 22:27:30,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 22:27:30,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 22:27:30,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 22:27:30,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 22:27:30,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 22:27:30,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 22:27:30,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 22:27:30,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 22:27:30,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 22:27:30,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 22:27:30,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 22:27:30,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 22:27:30,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 22:27:30,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 22:27:30,492 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 22:27:30,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 22:27:30,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 22:27:30,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 22:27:30,498 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 22:27:30,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 22:27:30,499 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 22:27:30,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 22:27:30,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 22:27:30,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 22:27:30,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 22:27:30,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 22:27:30,501 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 22:27:30,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 22:27:30,502 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 22:27:30,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 22:27:30,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 22:27:30,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 22:27:30,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 22:27:30,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 22:27:30,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 22:27:30,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 22:27:30,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 22:27:30,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 22:27:30,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 22:27:30,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 22:27:30,506 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 22:27:30,506 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 22:27:30,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 22:27:30,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 22:27:30,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 22:27:30,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5a9a5f04ffebcbeddfcdcc0054cf362a3fa4d7b [2020-10-24 22:27:31,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 22:27:31,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 22:27:31,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 22:27:31,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 22:27:31,262 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 22:27:31,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2020-10-24 22:27:31,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81d221e37/322bcda980ed4eb2ba374eda0ded94dd/FLAGc059e929e [2020-10-24 22:27:32,679 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 22:27:32,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2020-10-24 22:27:32,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81d221e37/322bcda980ed4eb2ba374eda0ded94dd/FLAGc059e929e [2020-10-24 22:27:32,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81d221e37/322bcda980ed4eb2ba374eda0ded94dd [2020-10-24 22:27:32,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 22:27:32,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 22:27:32,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 22:27:32,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 22:27:32,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 22:27:32,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:27:32" (1/1) ... [2020-10-24 22:27:32,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641b2dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:32, skipping insertion in model container [2020-10-24 22:27:32,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:27:32" (1/1) ... [2020-10-24 22:27:32,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 22:27:33,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 22:27:33,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 22:27:33,448 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 22:27:33,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 22:27:33,545 INFO L208 MainTranslator]: Completed translation [2020-10-24 22:27:33,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33 WrapperNode [2020-10-24 22:27:33,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 22:27:33,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 22:27:33,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 22:27:33,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 22:27:33,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 22:27:33,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 22:27:33,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 22:27:33,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 22:27:33,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (1/1) ... [2020-10-24 22:27:33,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 22:27:33,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 22:27:33,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 22:27:33,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 22:27:33,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (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 22:27:33,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 22:27:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 22:27:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 22:27:33,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 22:27:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 22:27:33,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 22:27:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 22:27:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 22:27:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 22:27:36,524 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 22:27:36,525 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-24 22:27:36,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:27:36 BoogieIcfgContainer [2020-10-24 22:27:36,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 22:27:36,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 22:27:36,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 22:27:36,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 22:27:36,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:27:32" (1/3) ... [2020-10-24 22:27:36,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3768ef6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:27:36, skipping insertion in model container [2020-10-24 22:27:36,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:27:33" (2/3) ... [2020-10-24 22:27:36,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3768ef6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:27:36, skipping insertion in model container [2020-10-24 22:27:36,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:27:36" (3/3) ... [2020-10-24 22:27:36,551 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2020-10-24 22:27:36,576 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 22:27:36,586 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 22:27:36,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 22:27:36,666 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 22:27:36,666 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 22:27:36,667 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 22:27:36,667 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 22:27:36,667 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 22:27:36,668 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 22:27:36,668 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 22:27:36,668 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 22:27:36,698 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-10-24 22:27:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 22:27:36,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:27:36,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:27:36,726 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:27:36,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:27:36,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2020-10-24 22:27:36,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 22:27:36,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015715591] [2020-10-24 22:27:36,773 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 22:27:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:27:37,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 22:27:37,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 22:27:37,572 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 22:27:37,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 22:27:37,583 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 22:27:37,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015715591] [2020-10-24 22:27:37,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 22:27:37,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 22:27:37,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604906855] [2020-10-24 22:27:37,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 22:27:37,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 22:27:37,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 22:27:37,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 22:27:37,641 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-10-24 22:27:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 22:27:37,683 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-10-24 22:27:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 22:27:37,688 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-24 22:27:37,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 22:27:37,715 INFO L225 Difference]: With dead ends: 22 [2020-10-24 22:27:37,716 INFO L226 Difference]: Without dead ends: 8 [2020-10-24 22:27:37,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 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 22:27:37,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-24 22:27:37,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-24 22:27:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-24 22:27:37,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-10-24 22:27:37,821 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-10-24 22:27:37,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 22:27:37,823 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-10-24 22:27:37,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 22:27:37,823 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-10-24 22:27:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 22:27:37,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 22:27:37,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 22:27:38,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 22:27:38,042 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 22:27:38,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 22:27:38,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2020-10-24 22:27:38,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 22:27:38,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474384645] [2020-10-24 22:27:38,049 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 22:27:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 22:27:42,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-24 22:27:42,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 22:27:43,079 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-10-24 22:27:43,114 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 22:27:45,324 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |c_ULTIMATE.start_InvSqrt_#res|)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2020-10-24 22:27:45,363 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 22:27:47,470 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 22:28:02,336 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) .cse3) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse5 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (let ((.cse4 (let ((.cse6 (let ((.cse7 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul roundNearestTiesToEven .cse6 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse5) .cse6) .cse6)))))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse4) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.geq .cse4 (_ +zero 8 24)) (fp.leq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))))) (and .cse3 (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.geq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse8) .cse9) .cse9))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)))))))) is different from false [2020-10-24 22:28:12,922 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse3) .cse3))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))))))) is different from false [2020-10-24 22:28:15,041 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse3) .cse3))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))))))) is different from true [2020-10-24 22:28:15,046 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 22:28:15,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 22:28:16,500 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-10-24 22:28:16,510 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 22:28:20,378 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse1 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (fp.geq (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse2) .cse2)))) (_ +zero 8 24))))) is different from false [2020-10-24 22:28:22,573 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse1 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (fp.geq (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse2) .cse2)))) (_ +zero 8 24))))) is different from true [2020-10-24 22:28:24,776 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond))) (and (or (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse1 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))))) .cse2) (or .cse2 (forall ((v_prenex_2 (_ BitVec 32))) (or (fp.geq (let ((.cse3 (let ((.cse4 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse3) .cse3)))) (_ +zero 8 24)) (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2))))))))) is different from true [2020-10-24 22:28:24,790 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-24 22:28:24,791 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 22:28:24,804 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-24 22:28:26,898 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (or (not (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) (not (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (fp.leq .cse3 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul c_currentRoundingMode .cse4 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from false [2020-10-24 22:28:29,084 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (or (not (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) (not (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (fp.leq .cse3 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul c_currentRoundingMode .cse4 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from true [2020-10-24 22:28:29,086 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 22:28:29,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474384645] [2020-10-24 22:28:29,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 22:28:29,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2020-10-24 22:28:29,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727360056] [2020-10-24 22:28:29,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-24 22:28:29,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 22:28:29,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-24 22:28:29,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=32, Unknown=9, NotChecked=90, Total=156 [2020-10-24 22:28:29,095 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 13 states. [2020-10-24 22:28:31,316 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (or (not (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) (not (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))))) (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (fp.leq .cse3 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul c_currentRoundingMode .cse4 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from false [2020-10-24 22:28:33,533 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (or (not (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) (not (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (fp.geq (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))))) (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (fp.leq .cse3 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (not (fp.geq .cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse4 (let ((.cse5 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul c_currentRoundingMode .cse4 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse3) .cse4) .cse4))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from true [2020-10-24 22:28:35,753 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond))) (and (let ((.cse1 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 8 24) c_currentRoundingMode 100.0))) (.cse0 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))))) (or (and (or (not .cse0) (not .cse1)) .cse2) (and (= (_ bv1 32) c_ULTIMATE.start_assume_abort_if_not_~cond) .cse1 .cse0))) (= c_currentRoundingMode roundNearestTiesToEven) (or (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse3 (let ((.cse4 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (fp.mul c_currentRoundingMode .cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse3) .cse3))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))))) .cse2) (or .cse2 (forall ((v_prenex_2 (_ BitVec 32))) (or (fp.geq (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr v_prenex_2 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul c_currentRoundingMode .cse5 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse5) .cse5)))) (_ +zero 8 24)) (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2))))))))) is different from true [2020-10-24 22:28:49,164 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse1 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))))) (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (fp.geq (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse2) .cse2)))) (_ +zero 8 24)))) (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) is different from false [2020-10-24 22:28:51,418 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (fp.leq ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse0 (let ((.cse1 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))))) (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (or (not (= c_ULTIMATE.start_main_~a~0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (fp.geq (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) c_ULTIMATE.start_main_~a~0) .cse2) .cse2)))) (_ +zero 8 24)))) (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0)))) is different from true [2020-10-24 22:28:53,546 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |c_ULTIMATE.start_InvSqrt_#res|)))) (fp.leq ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_InvSqrt_#res|) ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq |c_ULTIMATE.start_InvSqrt_#res| (_ +zero 8 24))) is different from false [2020-10-24 22:28:55,744 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (not .cse0) (or (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.geq (let ((.cse1 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse2) .cse1) .cse1)))) (_ +zero 8 24))) (fp.geq .cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse2 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) .cse0) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse5 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (let ((.cse4 (let ((.cse6 (let ((.cse7 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul roundNearestTiesToEven .cse6 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse5) .cse6) .cse6)))))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse4) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.geq .cse4 (_ +zero 8 24)) (fp.leq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))))) (and .cse0 (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.geq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse8) .cse9) .cse9))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))))))) is different from false [2020-10-24 22:28:55,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 22:28:55,761 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-10-24 22:28:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 22:28:55,762 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 7 [2020-10-24 22:28:55,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 22:28:55,762 INFO L225 Difference]: With dead ends: 8 [2020-10-24 22:28:55,762 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 22:28:55,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 49.4s TimeCoverageRelationStatistics Valid=35, Invalid=35, Unknown=16, NotChecked=220, Total=306 [2020-10-24 22:28:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 22:28:55,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 22:28:55,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 22:28:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 22:28:55,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-10-24 22:28:55,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 22:28:55,767 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 22:28:55,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-24 22:28:55,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 22:28:55,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 22:28:55,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 22:28:55,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 22:29:15,532 WARN L193 SmtUtils]: Spent 19.46 s on a formula simplification that was a NOOP. DAG size: 43 [2020-10-24 22:29:15,536 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 22:29:15,537 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-10-24 22:29:15,537 INFO L274 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-24 22:29:15,537 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-10-24 22:29:15,538 INFO L277 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: true [2020-10-24 22:29:15,538 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 22:29:15,539 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 22:29:15,539 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 22:29:15,539 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 22:29:15,542 INFO L270 CegarLoopResult]: At program point L28(lines 20 29) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) currentRoundingMode 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul currentRoundingMode .cse1 (fp.sub currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 3.0 2.0)) (fp.mul currentRoundingMode (fp.mul currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |ULTIMATE.start_InvSqrt_#res|)))) (fp.leq ((_ to_fp 11 53) currentRoundingMode |ULTIMATE.start_InvSqrt_#res|) ((_ to_fp 11 53) currentRoundingMode 10.0)) (= currentRoundingMode roundNearestTiesToEven) (fp.geq |ULTIMATE.start_InvSqrt_#res| (_ +zero 8 24))) [2020-10-24 22:29:15,543 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 22:29:15,543 INFO L277 CegarLoopResult]: At program point L53(lines 43 54) the Hoare annotation is: true [2020-10-24 22:29:15,544 INFO L274 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-10-24 22:29:15,563 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-24 22:29:15,572 INFO L168 Benchmark]: Toolchain (without parser) took 102629.21 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.7 MB in the beginning and 27.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-10-24 22:29:15,574 INFO L168 Benchmark]: CDTParser took 0.96 ms. Allocated memory is still 48.2 MB. Free memory was 31.0 MB in the beginning and 30.9 MB in the end (delta: 33.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 22:29:15,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.22 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 27.9 MB in the end (delta: -2.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 22:29:15,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.71 ms. Allocated memory is still 48.2 MB. Free memory was 27.9 MB in the beginning and 26.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 22:29:15,579 INFO L168 Benchmark]: Boogie Preprocessor took 77.10 ms. Allocated memory is still 48.2 MB. Free memory was 26.3 MB in the beginning and 24.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 22:29:15,580 INFO L168 Benchmark]: RCFGBuilder took 2808.10 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 24.5 MB in the end (delta: 364.4 kB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-10-24 22:29:15,582 INFO L168 Benchmark]: TraceAbstraction took 99036.71 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.0 MB in the beginning and 27.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-24 22:29:15,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 ms. Allocated memory is still 48.2 MB. Free memory was 31.0 MB in the beginning and 30.9 MB in the end (delta: 33.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 594.22 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 27.9 MB in the end (delta: -2.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.71 ms. Allocated memory is still 48.2 MB. Free memory was 27.9 MB in the beginning and 26.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.10 ms. Allocated memory is still 48.2 MB. Free memory was 26.3 MB in the beginning and 24.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2808.10 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 24.5 MB in the end (delta: 364.4 kB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 99036.71 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.0 MB in the beginning and 27.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...