./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.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 ../sv-benchmarks/c/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: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 07:11:55,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 07:11:55,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 07:11:55,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 07:11:55,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 07:11:55,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 07:11:55,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 07:11:55,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 07:11:55,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 07:11:55,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 07:11:55,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 07:11:55,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 07:11:55,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 07:11:55,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 07:11:55,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 07:11:55,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 07:11:55,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 07:11:55,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 07:11:55,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 07:11:55,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 07:11:55,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 07:11:55,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 07:11:55,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 07:11:55,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 07:11:55,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 07:11:55,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 07:11:55,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 07:11:55,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 07:11:55,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 07:11:55,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 07:11:55,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 07:11:55,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 07:11:55,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 07:11:55,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 07:11:55,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 07:11:55,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 07:11:55,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 07:11:55,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 07:11:55,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 07:11:55,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 07:11:55,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 07:11:55,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 07:11:55,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 07:11:55,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 07:11:55,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 07:11:55,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 07:11:55,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 07:11:55,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 07:11:55,632 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 07:11:55,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 07:11:55,633 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 07:11:55,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 07:11:55,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 07:11:55,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 07:11:55,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 07:11:55,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 07:11:55,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 07:11:55,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 07:11:55,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 07:11:55,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 07:11:55,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 07:11:55,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 07:11:55,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 07:11:55,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 07:11:55,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:11:55,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 07:11:55,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 07:11:55,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 07:11:55,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 07:11:55,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 07:11:55,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 07:11:55,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 07:11:55,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18a7fa5d929aa4f94783ce4ac14d173e66069fd4 [2021-08-29 07:11:55,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 07:11:55,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 07:11:55,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 07:11:55,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 07:11:55,987 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 07:11:55,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2021-08-29 07:11:56,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07de836a/3617625c4a644b43a6d7e463efecd07d/FLAGe463b2f3a [2021-08-29 07:11:56,438 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 07:11:56,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2021-08-29 07:11:56,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07de836a/3617625c4a644b43a6d7e463efecd07d/FLAGe463b2f3a [2021-08-29 07:11:56,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07de836a/3617625c4a644b43a6d7e463efecd07d [2021-08-29 07:11:56,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 07:11:56,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 07:11:56,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 07:11:56,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 07:11:56,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 07:11:56,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0677cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56, skipping insertion in model container [2021-08-29 07:11:56,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 07:11:56,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 07:11:56,680 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2021-08-29 07:11:56,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:11:56,695 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 07:11:56,718 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2021-08-29 07:11:56,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:11:56,771 INFO L208 MainTranslator]: Completed translation [2021-08-29 07:11:56,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56 WrapperNode [2021-08-29 07:11:56,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 07:11:56,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 07:11:56,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 07:11:56,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 07:11:56,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 07:11:56,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 07:11:56,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 07:11:56,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 07:11:56,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 07:11:56,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 07:11:56,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 07:11:56,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 07:11:56,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (1/1) ... [2021-08-29 07:11:56,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:11:56,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 07:11:56,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 07:11:56,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 07:11:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 07:11:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 07:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 07:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 07:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-29 07:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 07:11:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 07:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 07:11:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 07:11:57,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 07:11:57,105 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-29 07:11:57,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:11:57 BoogieIcfgContainer [2021-08-29 07:11:57,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 07:11:57,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 07:11:57,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 07:11:57,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 07:11:57,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:11:56" (1/3) ... [2021-08-29 07:11:57,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54160c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:11:57, skipping insertion in model container [2021-08-29 07:11:57,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:11:56" (2/3) ... [2021-08-29 07:11:57,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54160c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:11:57, skipping insertion in model container [2021-08-29 07:11:57,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:11:57" (3/3) ... [2021-08-29 07:11:57,110 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2021-08-29 07:11:57,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 07:11:57,114 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 07:11:57,162 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 07:11:57,171 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 07:11:57,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 07:11:57,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 07:11:57,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 07:11:57,188 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:11:57,189 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:11:57,189 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:11:57,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:11:57,195 INFO L82 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2021-08-29 07:11:57,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 07:11:57,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217720171] [2021-08-29 07:11:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:11:57,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 07:11:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 07:11:57,321 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 07:11:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 07:11:57,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 07:11:57,403 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 07:11:57,403 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 07:11:57,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 07:11:57,411 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 07:11:57,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:11:57 BoogieIcfgContainer [2021-08-29 07:11:57,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 07:11:57,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 07:11:57,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 07:11:57,446 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 07:11:57,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:11:57" (3/4) ... [2021-08-29 07:11:57,448 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 07:11:57,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 07:11:57,450 INFO L158 Benchmark]: Toolchain (without parser) took 970.19ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 74.1kB). Peak memory consumption was 997.2kB. Max. memory is 16.1GB. [2021-08-29 07:11:57,450 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 37.4MB in the end (delta: 41.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:11:57,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.58ms. Allocated memory is still 94.4MB. Free memory was 73.0MB in the beginning and 77.8MB in the end (delta: -4.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 07:11:57,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.93ms. Allocated memory is still 94.4MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:11:57,452 INFO L158 Benchmark]: Boogie Preprocessor took 31.14ms. Allocated memory is still 94.4MB. Free memory was 76.2MB in the beginning and 75.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:11:57,456 INFO L158 Benchmark]: RCFGBuilder took 274.48ms. Allocated memory is still 94.4MB. Free memory was 75.1MB in the beginning and 65.5MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 07:11:57,456 INFO L158 Benchmark]: TraceAbstraction took 335.87ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 73.1MB in the end (delta: -8.1MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-08-29 07:11:57,456 INFO L158 Benchmark]: Witness Printer took 3.23ms. Allocated memory is still 94.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:11:57,463 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 37.4MB in the end (delta: 41.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.58ms. Allocated memory is still 94.4MB. Free memory was 73.0MB in the beginning and 77.8MB in the end (delta: -4.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.93ms. Allocated memory is still 94.4MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.14ms. Allocated memory is still 94.4MB. Free memory was 76.2MB in the beginning and 75.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 274.48ms. Allocated memory is still 94.4MB. Free memory was 75.1MB in the beginning and 65.5MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 335.87ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 73.1MB in the end (delta: -8.1MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Witness Printer took 3.23ms. Allocated memory is still 94.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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=1597463010, __return_87=0, __return_main=0] [L46] COND FALSE !(main__r >= 0.0) VAL [__return_72=1597463010, __return_87=0, __return_main=0] [L72] main____CPAchecker_TMP_1 = 0 VAL [__return_72=1597463010, __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=1597463010, __return_87=0, __return_main=0] [L57] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_72=1597463010, __return_87=0, __return_main=0] [L59] reach_error() VAL [__return_72=1597463010, __return_87=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 249.44ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.26ms, AutomataDifference: 0.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.36ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.07ms SsaConstructionTime, 48.18ms SatisfiabilityAnalysisTime, 0.00ms 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 [2021-08-29 07:11:57,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 07:11:59,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 07:11:59,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 07:11:59,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 07:11:59,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 07:11:59,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 07:11:59,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 07:11:59,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 07:11:59,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 07:11:59,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 07:11:59,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 07:11:59,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 07:11:59,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 07:11:59,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 07:11:59,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 07:11:59,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 07:11:59,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 07:11:59,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 07:11:59,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 07:11:59,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 07:11:59,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 07:11:59,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 07:11:59,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 07:11:59,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 07:11:59,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 07:11:59,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 07:11:59,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 07:11:59,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 07:11:59,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 07:11:59,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 07:11:59,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 07:11:59,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 07:11:59,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 07:11:59,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 07:11:59,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 07:11:59,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 07:11:59,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 07:11:59,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 07:11:59,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 07:11:59,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 07:11:59,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 07:11:59,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 07:11:59,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 07:11:59,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 07:11:59,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 07:11:59,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 07:11:59,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 07:11:59,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 07:11:59,514 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 07:11:59,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 07:11:59,514 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 07:11:59,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 07:11:59,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 07:11:59,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 07:11:59,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 07:11:59,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 07:11:59,515 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 07:11:59,515 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 07:11:59,516 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 07:11:59,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 07:11:59,516 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 07:11:59,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 07:11:59,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 07:11:59,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 07:11:59,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 07:11:59,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:11:59,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 07:11:59,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 07:11:59,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 07:11:59,524 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 07:11:59,524 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 07:11:59,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 07:11:59,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 07:11:59,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 07:11:59,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18a7fa5d929aa4f94783ce4ac14d173e66069fd4 [2021-08-29 07:11:59,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 07:11:59,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 07:11:59,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 07:11:59,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 07:11:59,782 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 07:11:59,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2021-08-29 07:11:59,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2654565d0/0d1a07d0228842118ab8a0a36788f532/FLAG007e27ad5 [2021-08-29 07:12:00,200 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 07:12:00,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c [2021-08-29 07:12:00,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2654565d0/0d1a07d0228842118ab8a0a36788f532/FLAG007e27ad5 [2021-08-29 07:12:00,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2654565d0/0d1a07d0228842118ab8a0a36788f532 [2021-08-29 07:12:00,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 07:12:00,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 07:12:00,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 07:12:00,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 07:12:00,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 07:12:00,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fab23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00, skipping insertion in model container [2021-08-29 07:12:00,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 07:12:00,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 07:12:00,733 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2021-08-29 07:12:00,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:12:00,750 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 07:12:00,774 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c.v+cfa-reducer.c[1479,1492] [2021-08-29 07:12:00,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:12:00,793 INFO L208 MainTranslator]: Completed translation [2021-08-29 07:12:00,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00 WrapperNode [2021-08-29 07:12:00,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 07:12:00,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 07:12:00,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 07:12:00,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 07:12:00,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 07:12:00,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 07:12:00,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 07:12:00,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 07:12:00,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 07:12:00,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 07:12:00,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 07:12:00,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 07:12:00,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (1/1) ... [2021-08-29 07:12:00,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:12:00,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 07:12:00,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 07:12:00,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 07:12:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 07:12:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 07:12:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-08-29 07:12:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 07:12:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 07:12:00,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 07:12:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-08-29 07:12:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 07:12:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 07:12:01,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 07:12:01,073 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-29 07:12:01,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:12:01 BoogieIcfgContainer [2021-08-29 07:12:01,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 07:12:01,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 07:12:01,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 07:12:01,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 07:12:01,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:12:00" (1/3) ... [2021-08-29 07:12:01,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331f4996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:12:01, skipping insertion in model container [2021-08-29 07:12:01,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:12:00" (2/3) ... [2021-08-29 07:12:01,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331f4996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:12:01, skipping insertion in model container [2021-08-29 07:12:01,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:12:01" (3/3) ... [2021-08-29 07:12:01,080 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c.v+cfa-reducer.c [2021-08-29 07:12:01,084 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 07:12:01,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 07:12:01,113 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 07:12:01,117 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 07:12:01,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 07:12:01,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 07:12:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 07:12:01,129 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:12:01,129 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 07:12:01,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:12:01,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:12:01,133 INFO L82 PathProgramCache]: Analyzing trace with hash -2137295023, now seen corresponding path program 1 times [2021-08-29 07:12:01,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 07:12:01,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958044942] [2021-08-29 07:12:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:12:01,141 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 07:12:01,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 07:12:01,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 07:12:01,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 07:12:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 07:12:02,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-29 07:12:02,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 07:12:19,627 WARN L838 $PredicateComparison]: unable to prove that (and (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)) (= c_ULTIMATE.start_main_~main__r~0 ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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))))))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-08-29 07:12:37,040 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 ((_ 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 (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse0 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse0) (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)) .cse0) .cse0))))))) (_ +zero 11 53))) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 100.0))))) is different from false [2021-08-29 07:12:39,139 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 ((_ 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 (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (let ((.cse0 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse0) (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)) .cse0) .cse0))))))) (_ +zero 11 53))) (fp.geq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 2500000037252903.0 25000000000000000.0))) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 100.0))))) is different from true [2021-08-29 07:13:25,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:13:25,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 07:13:37,180 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (= .cse0 c_ULTIMATE.start_main_~main__a~0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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)) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) .cse1) .cse1))))))) (_ +zero 11 53))))) is different from false [2021-08-29 07:13:39,337 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (= .cse0 c_ULTIMATE.start_main_~main__a~0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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)) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) .cse1) .cse1))))))) (_ +zero 11 53))))) is different from true [2021-08-29 07:13:51,102 WARN L838 $PredicateComparison]: unable to prove that (or (not (fp.leq ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0) ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (= .cse0 c_ULTIMATE.start_main_~main__a~0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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)) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) .cse1) .cse1))))))) (_ +zero 11 53)))))) is different from false [2021-08-29 07:13:53,268 WARN L860 $PredicateComparison]: unable to prove that (or (not (fp.leq ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0) ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (= .cse0 c_ULTIMATE.start_main_~main__a~0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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)) ((_ to_fp 11 53) c_currentRoundingMode .cse0))) .cse1) .cse1))))))) (_ +zero 11 53)))))) is different from true [2021-08-29 07:14:08,812 WARN L838 $PredicateComparison]: unable to prove that (forall ((|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|))))) (or (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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))))))) (_ +zero 11 53))))) is different from false [2021-08-29 07:14:10,978 WARN L860 $PredicateComparison]: unable to prove that (forall ((|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|))))) (or (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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))))))) (_ +zero 11 53))))) is different from true [2021-08-29 07:14:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 07:14:24,388 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 07:14:24,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958044942] [2021-08-29 07:14:24,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958044942] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 07:14:24,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 07:14:24,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-08-29 07:14:24,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070424025] [2021-08-29 07:14:24,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-29 07:14:24,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 07:14:24,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-29 07:14:24,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=19, Unknown=9, NotChecked=60, Total=110 [2021-08-29 07:14:24,436 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 07:14:27,011 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|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|))))) (or (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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))))))) (_ +zero 11 53)))))) is different from false [2021-08-29 07:14:29,172 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((|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|))))) (or (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0)))) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 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))))))) (_ +zero 11 53)))))) is different from true [2021-08-29 07:14:32,077 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0))) (or (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (= .cse1 c_ULTIMATE.start_main_~main__a~0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse2 (let ((.cse3 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse2) (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)) ((_ to_fp 11 53) c_currentRoundingMode .cse1))) .cse2) .cse2))))))) (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-08-29 07:14:34,254 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~main__a~0))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2500000037252903.0 25000000000000000.0))) (or (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 100.0))) (forall ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (or (not (= .cse1 c_ULTIMATE.start_main_~main__a~0)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (let ((.cse2 (let ((.cse3 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode .cse2) (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)) ((_ to_fp 11 53) c_currentRoundingMode .cse1))) .cse2) .cse2))))))) (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-08-29 07:14:37,817 WARN L228 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-08-29 07:14:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 07:14:37,820 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 31362.69ms TimeCoverageRelationStatistics Valid=26, Invalid=19, Unknown=13, NotChecked=98, Total=156 [2021-08-29 07:14:37,822 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 444.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 452.34ms IncrementalHoareTripleChecker+Time [2021-08-29 07:14:37,822 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 9 Unchecked, 452.34ms Time] [2021-08-29 07:14:37,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-08-29 07:14:37,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-29 07:14:38,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 07:14:38,024 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:863) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:779) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) ... 49 more [2021-08-29 07:14:38,027 INFO L158 Benchmark]: Toolchain (without parser) took 157456.29ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.6MB in the beginning and 49.7MB in the end (delta: -20.1MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2021-08-29 07:14:38,027 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 52.4MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:14:38,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.09ms. Allocated memory is still 52.4MB. Free memory was 29.5MB in the beginning and 32.0MB in the end (delta: -2.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-08-29 07:14:38,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.30ms. Allocated memory is still 52.4MB. Free memory was 32.0MB in the beginning and 30.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 07:14:38,028 INFO L158 Benchmark]: Boogie Preprocessor took 16.65ms. Allocated memory is still 52.4MB. Free memory was 30.4MB in the beginning and 29.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:14:38,029 INFO L158 Benchmark]: RCFGBuilder took 241.41ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.0MB in the beginning and 51.5MB in the end (delta: -22.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-08-29 07:14:38,029 INFO L158 Benchmark]: TraceAbstraction took 156950.35ms. Allocated memory is still 73.4MB. Free memory was 50.9MB in the beginning and 49.7MB in the end (delta: 1.2MB). Peak memory consumption was 940.6kB. Max. memory is 16.1GB. [2021-08-29 07:14:38,031 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 52.4MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.09ms. Allocated memory is still 52.4MB. Free memory was 29.5MB in the beginning and 32.0MB in the end (delta: -2.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.30ms. Allocated memory is still 52.4MB. Free memory was 32.0MB in the beginning and 30.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.65ms. Allocated memory is still 52.4MB. Free memory was 30.4MB in the beginning and 29.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.41ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.0MB in the beginning and 51.5MB in the end (delta: -22.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 156950.35ms. Allocated memory is still 73.4MB. Free memory was 50.9MB in the beginning and 49.7MB in the end (delta: 1.2MB). Peak memory consumption was 940.6kB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...