./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54a68f41 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.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 18a7fa5d929aa4f94783ce4ac14d173e66069fd4 ................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.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 18a7fa5d929aa4f94783ce4ac14d173e66069fd4 .................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.1-54a68f4 [2020-12-03 18:25:16,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 18:25:16,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 18:25:16,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 18:25:16,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 18:25:16,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 18:25:16,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 18:25:16,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 18:25:16,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 18:25:16,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 18:25:16,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 18:25:16,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 18:25:16,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 18:25:16,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 18:25:16,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 18:25:16,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 18:25:16,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 18:25:16,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 18:25:16,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 18:25:16,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 18:25:16,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 18:25:16,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 18:25:16,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 18:25:16,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 18:25:16,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 18:25:16,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 18:25:16,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 18:25:16,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 18:25:16,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 18:25:16,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 18:25:16,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 18:25:16,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 18:25:16,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 18:25:16,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 18:25:16,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 18:25:16,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 18:25:16,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 18:25:16,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 18:25:16,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 18:25:16,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 18:25:16,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 18:25:16,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-03 18:25:16,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 18:25:16,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 18:25:16,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 18:25:16,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 18:25:16,714 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 18:25:16,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 18:25:16,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 18:25:16,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 18:25:16,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 18:25:16,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 18:25:16,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 18:25:16,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 18:25:16,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 18:25:16,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 18:25:16,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 18:25:16,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 18:25:16,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 18:25:16,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 18:25:16,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 18:25:16,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 18:25:16,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 18:25:16,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 18:25:16,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 18:25:16,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 18:25:16,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-03 18:25:16,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 18:25:16,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 18:25:16,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 18:25:16,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18a7fa5d929aa4f94783ce4ac14d173e66069fd4 [2020-12-03 18:25:17,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 18:25:17,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 18:25:17,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 18:25:17,289 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 18:25:17,290 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 18:25:17,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2020-12-03 18:25:17,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abba3f9f2/ea1e9abccb7e4bafbfc50d20e91985b9/FLAGd4104ce5e [2020-12-03 18:25:18,079 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 18:25:18,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2020-12-03 18:25:18,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abba3f9f2/ea1e9abccb7e4bafbfc50d20e91985b9/FLAGd4104ce5e [2020-12-03 18:25:18,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abba3f9f2/ea1e9abccb7e4bafbfc50d20e91985b9 [2020-12-03 18:25:18,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 18:25:18,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 18:25:18,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 18:25:18,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 18:25:18,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 18:25:18,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d0f27ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18, skipping insertion in model container [2020-12-03 18:25:18,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 18:25:18,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 18:25:18,652 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2020-12-03 18:25:18,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 18:25:18,679 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 18:25:18,719 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2020-12-03 18:25:18,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 18:25:18,755 INFO L208 MainTranslator]: Completed translation [2020-12-03 18:25:18,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18 WrapperNode [2020-12-03 18:25:18,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 18:25:18,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 18:25:18,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 18:25:18,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 18:25:18,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 18:25:18,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 18:25:18,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 18:25:18,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 18:25:18,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... [2020-12-03 18:25:18,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 18:25:18,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 18:25:18,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 18:25:18,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 18:25:18,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 18:25:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 18:25:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 18:25:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-03 18:25:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 18:25:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-03 18:25:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 18:25:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 18:25:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 18:25:19,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 18:25:19,543 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 18:25:19,546 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-03 18:25:19,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:25:19 BoogieIcfgContainer [2020-12-03 18:25:19,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 18:25:19,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 18:25:19,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 18:25:19,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 18:25:19,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:25:18" (1/3) ... [2020-12-03 18:25:19,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e37a954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:25:19, skipping insertion in model container [2020-12-03 18:25:19,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:18" (2/3) ... [2020-12-03 18:25:19,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e37a954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:25:19, skipping insertion in model container [2020-12-03 18:25:19,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:25:19" (3/3) ... [2020-12-03 18:25:19,563 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2020-12-03 18:25:19,584 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 18:25:19,590 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 18:25:19,607 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 18:25:19,649 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 18:25:19,649 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 18:25:19,650 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 18:25:19,650 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 18:25:19,650 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 18:25:19,650 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 18:25:19,651 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 18:25:19,651 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 18:25:19,668 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-03 18:25:19,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 18:25:19,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 18:25:19,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 18:25:19,677 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 18:25:19,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 18:25:19,685 INFO L82 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2020-12-03 18:25:19,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 18:25:19,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828034786] [2020-12-03 18:25:19,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 18:25:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 18:25:19,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 18:25:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 18:25:19,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 18:25:19,903 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-03 18:25:19,904 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 18:25:19,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 18:25:19,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 06:25:19 BoogieIcfgContainer [2020-12-03 18:25:19,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 18:25:19,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 18:25:19,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 18:25:19,948 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 18:25:19,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:25:19" (3/4) ... [2020-12-03 18:25:19,953 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-03 18:25:19,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 18:25:19,956 INFO L168 Benchmark]: Toolchain (without parser) took 1555.47 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.8 MB in the beginning and 29.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-12-03 18:25:19,958 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 46.1 MB. Free memory was 33.7 MB in the beginning and 33.7 MB in the end (delta: 37.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 18:25:19,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.64 ms. Allocated memory is still 46.1 MB. Free memory was 30.6 MB in the beginning and 24.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 18:25:19,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.19 ms. Allocated memory is still 46.1 MB. Free memory was 24.2 MB in the beginning and 22.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 18:25:19,961 INFO L168 Benchmark]: Boogie Preprocessor took 68.26 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.7 MB in the beginning and 42.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-12-03 18:25:19,962 INFO L168 Benchmark]: RCFGBuilder took 657.44 ms. Allocated memory is still 56.6 MB. Free memory was 42.0 MB in the beginning and 28.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-03 18:25:19,963 INFO L168 Benchmark]: TraceAbstraction took 392.78 ms. Allocated memory is still 56.6 MB. Free memory was 27.5 MB in the beginning and 29.8 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 18:25:19,964 INFO L168 Benchmark]: Witness Printer took 6.50 ms. Allocated memory is still 56.6 MB. Free memory was 29.8 MB in the beginning and 29.5 MB in the end (delta: 273.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 18:25:19,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 46.1 MB. Free memory was 33.7 MB in the beginning and 33.7 MB in the end (delta: 37.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.64 ms. Allocated memory is still 46.1 MB. Free memory was 30.6 MB in the beginning and 24.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.19 ms. Allocated memory is still 46.1 MB. Free memory was 24.2 MB in the beginning and 22.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.26 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.7 MB in the beginning and 42.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 657.44 ms. Allocated memory is still 56.6 MB. Free memory was 42.0 MB in the beginning and 28.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 392.78 ms. Allocated memory is still 56.6 MB. Free memory was 27.5 MB in the beginning and 29.8 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.50 ms. Allocated memory is still 56.6 MB. Free memory was 29.8 MB in the beginning and 29.5 MB in the end (delta: 273.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryArithmeticDOUBLEoperation at line 37. Possible FailurePath: [L1] int __return_main; [L17] float __return_72; [L18] int __return_87; VAL [__return_72=0, __return_87=0, __return_main=0] [L21] float main__a; [L22] float main__r; [L23] main__a = __VERIFIER_nondet_float() [L24] int main____CPAchecker_TMP_0; VAL [__return_72=0, __return_87=0, __return_main=0] [L25] COND TRUE main__a >= 0.10000000149011612 VAL [__return_72=0, __return_87=0, __return_main=0] [L27] COND TRUE main__a <= 100.0 [L29] main____CPAchecker_TMP_0 = 1 VAL [__return_72=0, __return_87=0, __return_main=0] [L30] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] float __tmp_1; [L34] __tmp_1 = main__a [L35] float InvSqrt__x; [L36] InvSqrt__x = __tmp_1 [L37] float InvSqrt__xhalf = 0.5 * InvSqrt__x; [L38] union float_int InvSqrt__i; [L39] InvSqrt__i.f = InvSqrt__x [L40] EXPR InvSqrt__i.i [L40] InvSqrt__i.i = 1597463007 - ((InvSqrt__i.i) >> 1) [L41] EXPR InvSqrt__i.f [L41] InvSqrt__x = InvSqrt__i.f [L42] InvSqrt__x = InvSqrt__x * (1.5 - ((InvSqrt__xhalf * InvSqrt__x) * InvSqrt__x)) [L43] __return_72 = InvSqrt__x [L44] main__r = __return_72 [L45] int main____CPAchecker_TMP_1; VAL [__return_72=1597463008, __return_87=0, __return_main=0] [L46] COND FALSE !(main__r >= 0.0) VAL [__return_72=1597463008, __return_87=0, __return_main=0] [L72] main____CPAchecker_TMP_1 = 0 VAL [__return_72=1597463008, __return_87=0, __return_main=0] [L53] int __tmp_2; [L54] __tmp_2 = main____CPAchecker_TMP_1 [L55] int __VERIFIER_assert__cond; [L56] __VERIFIER_assert__cond = __tmp_2 VAL [__return_72=1597463008, __return_87=0, __return_main=0] [L57] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_72=1597463008, __return_87=0, __return_main=0] [L59] reach_error() VAL [__return_72=1597463008, __return_87=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 0.2.1-54a68f4 [2020-12-03 18:25:22,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 18:25:22,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 18:25:22,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 18:25:22,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 18:25:22,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 18:25:22,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 18:25:22,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 18:25:22,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 18:25:22,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 18:25:22,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 18:25:22,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 18:25:22,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 18:25:22,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 18:25:22,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 18:25:22,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 18:25:22,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 18:25:22,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 18:25:22,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 18:25:22,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 18:25:22,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 18:25:22,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 18:25:22,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 18:25:22,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 18:25:22,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 18:25:22,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 18:25:22,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 18:25:22,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 18:25:22,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 18:25:22,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 18:25:22,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 18:25:22,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 18:25:22,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 18:25:22,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 18:25:22,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 18:25:22,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 18:25:22,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 18:25:22,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 18:25:22,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 18:25:22,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 18:25:22,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 18:25:22,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-03 18:25:22,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 18:25:22,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 18:25:22,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 18:25:22,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 18:25:22,827 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 18:25:22,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 18:25:22,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 18:25:22,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 18:25:22,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 18:25:22,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 18:25:22,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 18:25:22,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 18:25:22,831 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 18:25:22,831 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 18:25:22,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 18:25:22,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 18:25:22,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 18:25:22,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 18:25:22,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 18:25:22,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 18:25:22,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 18:25:22,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 18:25:22,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 18:25:22,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 18:25:22,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 18:25:22,835 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-03 18:25:22,835 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 18:25:22,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 18:25:22,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 18:25:22,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 18:25:22,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18a7fa5d929aa4f94783ce4ac14d173e66069fd4 [2020-12-03 18:25:23,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 18:25:23,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 18:25:23,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 18:25:23,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 18:25:23,366 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 18:25:23,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2020-12-03 18:25:23,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11baeb617/db33975f8ca740329c5fde5313deae10/FLAG64d2e729b [2020-12-03 18:25:24,149 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 18:25:24,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2020-12-03 18:25:24,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11baeb617/db33975f8ca740329c5fde5313deae10/FLAG64d2e729b [2020-12-03 18:25:24,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11baeb617/db33975f8ca740329c5fde5313deae10 [2020-12-03 18:25:24,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 18:25:24,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 18:25:24,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 18:25:24,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 18:25:24,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 18:25:24,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7179cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24, skipping insertion in model container [2020-12-03 18:25:24,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 18:25:24,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 18:25:24,782 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2020-12-03 18:25:24,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 18:25:24,813 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 18:25:24,838 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2020-12-03 18:25:24,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 18:25:24,865 INFO L208 MainTranslator]: Completed translation [2020-12-03 18:25:24,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24 WrapperNode [2020-12-03 18:25:24,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 18:25:24,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 18:25:24,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 18:25:24,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 18:25:24,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 18:25:24,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 18:25:24,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 18:25:24,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 18:25:24,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... [2020-12-03 18:25:24,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 18:25:24,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 18:25:24,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 18:25:24,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 18:25:24,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 18:25:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 18:25:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 18:25:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-03 18:25:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-03 18:25:25,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 18:25:25,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 18:25:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-03 18:25:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 18:25:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-03 18:25:28,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 18:25:28,535 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-03 18:25:28,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:25:28 BoogieIcfgContainer [2020-12-03 18:25:28,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 18:25:28,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 18:25:28,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 18:25:28,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 18:25:28,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 06:25:24" (1/3) ... [2020-12-03 18:25:28,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4091c002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:25:28, skipping insertion in model container [2020-12-03 18:25:28,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 06:25:24" (2/3) ... [2020-12-03 18:25:28,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4091c002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 06:25:28, skipping insertion in model container [2020-12-03 18:25:28,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 06:25:28" (3/3) ... [2020-12-03 18:25:28,551 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2020-12-03 18:25:28,569 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 18:25:28,573 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 18:25:28,588 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 18:25:28,619 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 18:25:28,619 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 18:25:28,619 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 18:25:28,620 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 18:25:28,620 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 18:25:28,620 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 18:25:28,620 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 18:25:28,620 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 18:25:28,636 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-03 18:25:28,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 18:25:28,643 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 18:25:28,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 18:25:28,645 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 18:25:28,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 18:25:28,652 INFO L82 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2020-12-03 18:25:28,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 18:25:28,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599572058] [2020-12-03 18:25:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-03 18:25:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 18:25:31,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-03 18:25:31,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 18:25:32,460 WARN L197 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-03 18:25:34,262 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 18:25:36,398 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (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 11 53) c_currentRoundingMode 100.0)) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0))) (= c_ULTIMATE.start_main_~main__r~0 ((_ to_fp 8 24) c_currentRoundingMode (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 ((_ to_fp 11 53) c_currentRoundingMode .cse1) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))))))) is different from false [2020-12-03 18:25:42,726 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (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 11 53) roundNearestTiesToEven 100.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (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 roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse1) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53)))))) is different from false [2020-12-03 18:25:44,816 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (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 11 53) roundNearestTiesToEven 100.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (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 roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse1) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53)))))) is different from true [2020-12-03 18:25:57,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 18:25:57,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 18:25:57,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599572058] [2020-12-03 18:25:57,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 18:25:57,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 18:25:57,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014399978] [2020-12-03 18:25:57,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-03 18:25:57,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 18:25:57,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-03 18:25:57,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=11, Unknown=3, NotChecked=14, Total=42 [2020-12-03 18:25:57,530 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 7 states. [2020-12-03 18:26:02,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 18:26:02,045 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-12-03 18:26:02,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 18:26:02,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-12-03 18:26:02,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 18:26:02,059 INFO L225 Difference]: With dead ends: 32 [2020-12-03 18:26:02,059 INFO L226 Difference]: Without dead ends: 12 [2020-12-03 18:26:02,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=14, Invalid=11, Unknown=3, NotChecked=14, Total=42 [2020-12-03 18:26:02,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-03 18:26:02,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-03 18:26:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-03 18:26:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-12-03 18:26:02,092 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-12-03 18:26:02,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 18:26:02,092 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-12-03 18:26:02,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-03 18:26:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-12-03 18:26:02,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 18:26:02,093 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 18:26:02,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 18:26:02,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 18:26:02,310 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 18:26:02,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 18:26:02,312 INFO L82 PathProgramCache]: Analyzing trace with hash 2140661612, now seen corresponding path program 1 times [2020-12-03 18:26:02,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 18:26:02,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592076812] [2020-12-03 18:26:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-03 18:26:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 18:26:02,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-03 18:26:02,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 18:26:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 18:26:02,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 18:26:02,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592076812] [2020-12-03 18:26:02,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 18:26:02,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 18:26:02,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069055378] [2020-12-03 18:26:02,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 18:26:02,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 18:26:02,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 18:26:02,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 18:26:02,979 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2020-12-03 18:26:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 18:26:05,564 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-03 18:26:05,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 18:26:05,565 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-03 18:26:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 18:26:05,566 INFO L225 Difference]: With dead ends: 16 [2020-12-03 18:26:05,566 INFO L226 Difference]: Without dead ends: 12 [2020-12-03 18:26:05,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 18:26:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-03 18:26:05,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-03 18:26:05,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-03 18:26:05,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-12-03 18:26:05,570 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-12-03 18:26:05,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 18:26:05,570 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-12-03 18:26:05,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 18:26:05,571 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-12-03 18:26:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 18:26:05,571 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 18:26:05,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 18:26:05,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 18:26:05,785 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 18:26:05,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 18:26:05,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1946484073, now seen corresponding path program 1 times [2020-12-03 18:26:05,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 18:26:05,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779851452] [2020-12-03 18:26:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-03 18:26:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 18:26:07,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-03 18:26:07,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 18:26:09,073 WARN L197 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-03 18:26:10,524 WARN L197 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 18:26:12,646 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_4| (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_4|))))) (and (= c_ULTIMATE.start_main_~main__r~0 ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse0) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse1)) .cse0) .cse0))))))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 100.0)) (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0))))))) is different from false [2020-12-03 18:26:14,772 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__r~0) (_ +zero 11 53)) (exists ((|v_skolemized_q#valueAsBitvector_4| (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_4|))))) (and (= c_ULTIMATE.start_main_~main__r~0 ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse0) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse1)) .cse0) .cse0))))))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 100.0)) (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0))))))) is different from false [2020-12-03 18:26:17,405 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__r~0) (_ +zero 11 53)) (exists ((|v_skolemized_q#valueAsBitvector_4| (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_4|))))) (and (= c_ULTIMATE.start_main_~main__r~0 ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse0) (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) .cse1)) .cse0) .cse0))))))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 100.0)) (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0))))))) is different from true [2020-12-03 18:26:23,778 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_4| (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_4|))))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse2) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse1)) .cse2) .cse2))))))))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))))))) is different from false [2020-12-03 18:26:25,874 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_4| (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_4|))))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse2 (let ((.cse3 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse2) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse1)) .cse2) .cse2))))))))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))))))) is different from true [2020-12-03 18:26:38,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 18:26:38,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 18:26:38,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779851452] [2020-12-03 18:26:38,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 18:26:38,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 18:26:38,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134463498] [2020-12-03 18:26:38,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-03 18:26:38,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 18:26:38,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-03 18:26:38,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=11, Unknown=5, NotChecked=24, Total=56 [2020-12-03 18:26:38,630 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 8 states. [2020-12-03 18:26:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 18:26:42,043 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-12-03 18:26:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 18:26:42,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-12-03 18:26:42,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 18:26:42,178 INFO L225 Difference]: With dead ends: 12 [2020-12-03 18:26:42,178 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 18:26:42,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=16, Invalid=11, Unknown=5, NotChecked=24, Total=56 [2020-12-03 18:26:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 18:26:42,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 18:26:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 18:26:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 18:26:42,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-03 18:26:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 18:26:42,180 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 18:26:42,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-03 18:26:42,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 18:26:42,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 18:26:42,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 18:26:42,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 18:26:56,457 WARN L197 SmtUtils]: Spent 14.03 s on a formula simplification that was a NOOP. DAG size: 74 [2020-12-03 18:27:14,705 WARN L197 SmtUtils]: Spent 18.25 s on a formula simplification that was a NOOP. DAG size: 76 [2020-12-03 18:27:14,709 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 18:27:14,709 INFO L262 CegarLoopResult]: For program point L27(lines 27 90) no Hoare annotation was computed. [2020-12-03 18:27:14,709 INFO L262 CegarLoopResult]: For program point L25(lines 25 95) no Hoare annotation was computed. [2020-12-03 18:27:14,709 INFO L262 CegarLoopResult]: For program point L48(lines 48 74) no Hoare annotation was computed. [2020-12-03 18:27:14,709 INFO L262 CegarLoopResult]: For program point L46(lines 46 79) no Hoare annotation was computed. [2020-12-03 18:27:14,710 INFO L258 CegarLoopResult]: At program point L73(lines 48 74) the Hoare annotation is: (or (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (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 11 53) roundNearestTiesToEven 100.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (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 roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse1) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53)))))) (exists ((|v_skolemized_q#valueAsBitvector_4| (_ BitVec 32))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_4|))))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse5) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse4)) .cse5) .cse5))))))))) (and (fp.geq .cse3 (_ +zero 11 53)) (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (not (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))))))) (= (_ bv1 32) ULTIMATE.start_main_~main____CPAchecker_TMP_1~0)) [2020-12-03 18:27:14,710 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-03 18:27:14,710 INFO L262 CegarLoopResult]: For program point L30(lines 30 85) no Hoare annotation was computed. [2020-12-03 18:27:14,710 INFO L265 CegarLoopResult]: At program point L94(lines 19 96) the Hoare annotation is: true [2020-12-03 18:27:14,711 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 18:27:14,711 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-03 18:27:14,711 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-03 18:27:14,711 INFO L262 CegarLoopResult]: For program point L57(lines 57 66) no Hoare annotation was computed. [2020-12-03 18:27:14,711 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2020-12-03 18:27:14,712 INFO L258 CegarLoopResult]: At program point L78(lines 46 79) the Hoare annotation is: (or (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (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 11 53) roundNearestTiesToEven 100.0)) (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (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 roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse1) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse0)) .cse1) .cse1))))))) (_ +zero 11 53)))))) (exists ((|v_skolemized_q#valueAsBitvector_4| (_ BitVec 32))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_4|))))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse5 (let ((.cse6 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_4| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse5) (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)) .cse4)) .cse5) .cse5))))))))) (and (fp.geq .cse3 (_ +zero 11 53)) (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (not (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0)))))))) [2020-12-03 18:27:14,723 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:211) 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: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:456) 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:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) 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) [2020-12-03 18:27:14,734 INFO L168 Benchmark]: Toolchain (without parser) took 110241.24 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.4 MB in the beginning and 20.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-12-03 18:27:14,736 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 48.2 MB. Free memory was 26.0 MB in the beginning and 26.0 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 18:27:14,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.20 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 23.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-03 18:27:14,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.02 ms. Allocated memory is still 58.7 MB. Free memory was 43.4 MB in the beginning and 42.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 18:27:14,741 INFO L168 Benchmark]: Boogie Preprocessor took 37.72 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 40.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 18:27:14,749 INFO L168 Benchmark]: RCFGBuilder took 3580.04 ms. Allocated memory is still 58.7 MB. Free memory was 40.6 MB in the beginning and 41.0 MB in the end (delta: -329.3 kB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-12-03 18:27:14,750 INFO L168 Benchmark]: TraceAbstraction took 106188.01 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 20.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-12-03 18:27:14,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 48.2 MB. Free memory was 26.0 MB in the beginning and 26.0 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 370.20 ms. Allocated memory is still 48.2 MB. Free memory was 25.2 MB in the beginning and 23.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.02 ms. Allocated memory is still 58.7 MB. Free memory was 43.4 MB in the beginning and 42.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.72 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 40.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3580.04 ms. Allocated memory is still 58.7 MB. Free memory was 40.6 MB in the beginning and 41.0 MB in the end (delta: -329.3 kB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 106188.01 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 20.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 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:211) 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...