./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0833.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0833.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 b63eb992c00c845168476a1db77eced17c7e9aa742c6bcee68b2e04a80fb6c93 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:57:34,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:57:34,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:57:34,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:57:34,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:57:34,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:57:34,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:57:34,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:57:34,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:57:34,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:57:34,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:57:34,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:57:34,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:57:34,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:57:34,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:57:34,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:57:34,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:57:34,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:57:34,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:57:34,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:57:34,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:57:34,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:57:34,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:57:34,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:57:34,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:57:34,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:57:34,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:57:34,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:57:34,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:57:34,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:57:34,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:57:34,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:57:34,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:57:34,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:57:34,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:57:34,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:57:34,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:57:34,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:57:34,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:57:34,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:57:34,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:57:34,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:57:34,568 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:57:34,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:57:34,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:57:34,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:57:34,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:57:34,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:57:34,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:57:34,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:57:34,571 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:57:34,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:57:34,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:57:34,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:57:34,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:57:34,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:57:34,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:57:34,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:57:34,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:57:34,573 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:57:34,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:57:34,573 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:57:34,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:57:34,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:57:34,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:57:34,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:57:34,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:57:34,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:57:34,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:57:34,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:57:34,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:57:34,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:57:34,576 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:57:34,576 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:57:34,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:57:34,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:57:34,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63eb992c00c845168476a1db77eced17c7e9aa742c6bcee68b2e04a80fb6c93 [2021-12-21 11:57:34,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:57:34,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:57:34,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:57:34,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:57:34,839 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:57:34,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-12-21 11:57:34,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec8b4932/91487b4b47ea48f4b8cffc3680d8a38d/FLAGf7a3d14fa [2021-12-21 11:57:35,239 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:57:35,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-12-21 11:57:35,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec8b4932/91487b4b47ea48f4b8cffc3680d8a38d/FLAGf7a3d14fa [2021-12-21 11:57:35,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec8b4932/91487b4b47ea48f4b8cffc3680d8a38d [2021-12-21 11:57:35,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:57:35,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:57:35,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:57:35,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:57:35,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:57:35,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b0e0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35, skipping insertion in model container [2021-12-21 11:57:35,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:57:35,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:57:35,503 WARN L230 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-newlib/double_req_bl_0833.c[4075,4088] [2021-12-21 11:57:35,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:57:35,515 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:57:35,556 WARN L230 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-newlib/double_req_bl_0833.c[4075,4088] [2021-12-21 11:57:35,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:57:35,576 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:57:35,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35 WrapperNode [2021-12-21 11:57:35,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:57:35,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:57:35,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:57:35,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:57:35,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,633 INFO L137 Inliner]: procedures = 18, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 201 [2021-12-21 11:57:35,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:57:35,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:57:35,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:57:35,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:57:35,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:57:35,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:57:35,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:57:35,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:57:35,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (1/1) ... [2021-12-21 11:57:35,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:57:35,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:57:35,712 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) [2021-12-21 11:57:35,721 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 [2021-12-21 11:57:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:57:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:57:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:57:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 11:57:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 11:57:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-21 11:57:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:57:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:57:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 11:57:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-21 11:57:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:57:35,819 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:57:35,820 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:57:36,005 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:57:36,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:57:36,010 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-21 11:57:36,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:57:36 BoogieIcfgContainer [2021-12-21 11:57:36,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:57:36,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:57:36,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:57:36,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:57:36,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:57:35" (1/3) ... [2021-12-21 11:57:36,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672e70e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:57:36, skipping insertion in model container [2021-12-21 11:57:36,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:35" (2/3) ... [2021-12-21 11:57:36,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672e70e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:57:36, skipping insertion in model container [2021-12-21 11:57:36,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:57:36" (3/3) ... [2021-12-21 11:57:36,022 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0833.c [2021-12-21 11:57:36,026 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:57:36,034 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:57:36,092 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:57:36,114 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-21 11:57:36,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:57:36,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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) [2021-12-21 11:57:36,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-21 11:57:36,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:57:36,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:57:36,138 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:57:36,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:57:36,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1722268475, now seen corresponding path program 1 times [2021-12-21 11:57:36,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:57:36,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120640473] [2021-12-21 11:57:36,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:57:36,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:57:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:57:36,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:57:36,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:57:36,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120640473] [2021-12-21 11:57:36,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120640473] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:57:36,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:57:36,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:57:36,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89608349] [2021-12-21 11:57:36,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:57:36,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:57:36,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:57:36,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:57:36,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:57:36,367 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-12-21 11:57:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:57:36,389 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2021-12-21 11:57:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:57:36,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) Word has length 11 [2021-12-21 11:57:36,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:57:36,398 INFO L225 Difference]: With dead ends: 86 [2021-12-21 11:57:36,398 INFO L226 Difference]: Without dead ends: 41 [2021-12-21 11:57:36,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:57:36,407 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:57:36,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:57:36,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-12-21 11:57:36,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-12-21 11:57:36,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 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) [2021-12-21 11:57:36,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2021-12-21 11:57:36,441 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 11 [2021-12-21 11:57:36,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:57:36,441 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2021-12-21 11:57:36,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-12-21 11:57:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-12-21 11:57:36,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-21 11:57:36,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:57:36,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:57:36,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:57:36,445 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:57:36,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:57:36,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1102347550, now seen corresponding path program 1 times [2021-12-21 11:57:36,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:57:36,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764689728] [2021-12-21 11:57:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:57:36,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:57:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:57:36,519 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:57:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:57:36,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:57:36,590 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:57:36,592 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:57:36,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:57:36,597 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:57:36,600 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:57:36,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:57:36 BoogieIcfgContainer [2021-12-21 11:57:36,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:57:36,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:57:36,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:57:36,637 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:57:36,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:57:36" (3/4) ... [2021-12-21 11:57:36,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:57:36,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:57:36,640 INFO L158 Benchmark]: Toolchain (without parser) took 1374.42ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 57.1MB in the beginning and 72.2MB in the end (delta: -15.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-12-21 11:57:36,641 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 34.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:57:36,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.10ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 63.3MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:57:36,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.59ms. Allocated memory is still 90.2MB. Free memory was 63.3MB in the beginning and 61.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:57:36,642 INFO L158 Benchmark]: Boogie Preprocessor took 48.18ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 59.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:57:36,642 INFO L158 Benchmark]: RCFGBuilder took 327.97ms. Allocated memory is still 90.2MB. Free memory was 59.4MB in the beginning and 44.0MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-21 11:57:36,643 INFO L158 Benchmark]: TraceAbstraction took 624.06ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 43.3MB in the beginning and 72.8MB in the end (delta: -29.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:57:36,643 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 115.3MB. Free memory was 72.8MB in the beginning and 72.2MB in the end (delta: 593.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:57:36,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 34.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.10ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 63.3MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.59ms. Allocated memory is still 90.2MB. Free memory was 63.3MB in the beginning and 61.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.18ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 59.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 327.97ms. Allocated memory is still 90.2MB. Free memory was 59.4MB in the beginning and 44.0MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 624.06ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 43.3MB in the beginning and 72.8MB in the end (delta: -29.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 115.3MB. Free memory was 72.8MB in the beginning and 72.2MB in the end (delta: 593.5kB). 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 155]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryDOUBLEComparisonOperation at line 154. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L151] double x = -1.0 / 0.0; [L152] CALL, EXPR __ieee754_exp(x) [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, xsb=-1] [L59] COND TRUE hx >= 0x40862E42 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, xsb=-1] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, xsb=-1] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, xsb=-1] [L152] RET, EXPR __ieee754_exp(x) [L152] double res = __ieee754_exp(x); [L154] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, res == 0.0 && __signbit_double(res) == 0=0, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004] [L154] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L155] reach_error() VAL [halF_exp={4:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 56 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-21 11:57:36,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0833.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 b63eb992c00c845168476a1db77eced17c7e9aa742c6bcee68b2e04a80fb6c93 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:57:38,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:57:38,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:57:38,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:57:38,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:57:38,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:57:38,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:57:38,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:57:38,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:57:38,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:57:38,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:57:38,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:57:38,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:57:38,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:57:38,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:57:38,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:57:38,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:57:38,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:57:38,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:57:38,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:57:38,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:57:38,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:57:38,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:57:38,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:57:38,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:57:38,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:57:38,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:57:38,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:57:38,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:57:38,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:57:38,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:57:38,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:57:38,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:57:38,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:57:38,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:57:38,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:57:38,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:57:38,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:57:38,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:57:38,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:57:38,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:57:38,543 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:57:38,569 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:57:38,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:57:38,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:57:38,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:57:38,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:57:38,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:57:38,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:57:38,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:57:38,573 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:57:38,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:57:38,574 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:57:38,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:57:38,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:57:38,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:57:38,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:57:38,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:57:38,575 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:57:38,575 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:57:38,575 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:57:38,576 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:57:38,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:57:38,576 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:57:38,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:57:38,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:57:38,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:57:38,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:57:38,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:57:38,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:57:38,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:57:38,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:57:38,577 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:57:38,577 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:57:38,578 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:57:38,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:57:38,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:57:38,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:57:38,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:57:38,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63eb992c00c845168476a1db77eced17c7e9aa742c6bcee68b2e04a80fb6c93 [2021-12-21 11:57:38,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:57:38,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:57:38,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:57:38,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:57:38,865 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:57:38,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-12-21 11:57:38,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee535de4/bcba230a01d445a19cb282e6f4426e42/FLAGa438963b4 [2021-12-21 11:57:39,370 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:57:39,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-12-21 11:57:39,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee535de4/bcba230a01d445a19cb282e6f4426e42/FLAGa438963b4 [2021-12-21 11:57:39,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ee535de4/bcba230a01d445a19cb282e6f4426e42 [2021-12-21 11:57:39,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:57:39,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:57:39,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:57:39,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:57:39,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:57:39,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:57:39" (1/1) ... [2021-12-21 11:57:39,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9e9a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:39, skipping insertion in model container [2021-12-21 11:57:39,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:57:39" (1/1) ... [2021-12-21 11:57:39,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:57:39,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:57:39,958 WARN L230 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-newlib/double_req_bl_0833.c[4075,4088] [2021-12-21 11:57:39,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:57:39,989 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:57:40,034 WARN L230 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-newlib/double_req_bl_0833.c[4075,4088] [2021-12-21 11:57:40,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:57:40,064 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:57:40,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40 WrapperNode [2021-12-21 11:57:40,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:57:40,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:57:40,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:57:40,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:57:40,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,122 INFO L137 Inliner]: procedures = 21, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 201 [2021-12-21 11:57:40,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:57:40,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:57:40,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:57:40,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:57:40,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:57:40,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:57:40,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:57:40,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:57:40,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:57:40" (1/1) ... [2021-12-21 11:57:40,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:57:40,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:57:40,214 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) [2021-12-21 11:57:40,230 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 [2021-12-21 11:57:40,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:57:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-21 11:57:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-21 11:57:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:57:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:57:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-21 11:57:40,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 11:57:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:57:40,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:57:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 11:57:40,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:57:40,359 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:57:40,365 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:57:40,552 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.AssertionError: Not a regular bitvector operator with bitvector result: bvshl at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$RegularBitvectorOperation_BitvectorResult.isCommutative(BitvectorUtils.java:505) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.notSimplified(BitvectorUtils.java:296) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.simplify_NonConstantCase(BitvectorUtils.java:291) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.simplifiedResult(BitvectorUtils.java:286) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils.termWithLocalSimplification(BitvectorUtils.java:217) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1490) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateFunctionApplication(Expression2Term.java:405) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:258) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateFunctionApplication(Expression2Term.java:391) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:258) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateToTerms(Expression2Term.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.addSummary(Statements2TransFormula.java:412) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:733) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-21 11:57:40,558 INFO L158 Benchmark]: Toolchain (without parser) took 763.65ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 35.5MB in the beginning and 49.0MB in the end (delta: -13.6MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-12-21 11:57:40,559 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:57:40,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.30ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 37.3MB in the end (delta: -2.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-12-21 11:57:40,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.23ms. Allocated memory is still 56.6MB. Free memory was 37.3MB in the beginning and 35.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:57:40,561 INFO L158 Benchmark]: Boogie Preprocessor took 61.66ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 32.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:57:40,562 INFO L158 Benchmark]: RCFGBuilder took 369.91ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 32.9MB in the beginning and 49.0MB in the end (delta: -16.1MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-12-21 11:57:40,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.30ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 37.3MB in the end (delta: -2.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.23ms. Allocated memory is still 56.6MB. Free memory was 37.3MB in the beginning and 35.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.66ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 32.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 369.91ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 32.9MB in the beginning and 49.0MB in the end (delta: -16.1MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: AssertionError: Not a regular bitvector operator with bitvector result: bvshl: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$RegularBitvectorOperation_BitvectorResult.isCommutative(BitvectorUtils.java:505) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-21 11:57:40,605 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl