./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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_1121b.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 eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:36:09,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:36:09,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:36:09,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:36:09,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:36:09,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:36:09,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:36:09,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:36:09,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:36:09,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:36:09,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:36:09,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:36:09,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:36:09,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:36:09,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:36:09,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:36:09,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:36:09,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:36:09,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:36:09,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:36:09,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:36:09,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:36:09,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:36:09,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:36:09,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:36:09,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:36:09,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:36:09,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:36:09,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:36:09,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:36:09,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:36:09,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:36:09,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:36:09,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:36:09,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:36:09,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:36:09,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:36:09,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:36:09,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:36:09,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:36:09,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:36:09,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:36:09,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:36:09,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:36:09,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:36:09,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:36:09,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:36:09,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:36:09,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:36:09,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:36:09,326 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:36:09,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:36:09,327 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:36:09,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:36:09,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:36:09,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:36:09,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:36:09,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:36:09,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:36:09,328 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:36:09,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:36:09,328 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:36:09,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:36:09,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:36:09,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:36:09,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:36:09,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:09,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:36:09,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:36:09,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:36:09,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:36:09,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:36:09,331 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:36:09,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:36:09,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:36:09,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:36:09,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab [2021-12-15 10:36:09,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:36:09,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:36:09,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:36:09,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:36:09,546 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:36:09,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-12-15 10:36:09,598 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6b4cc31/5abb744570d444e1b3675724714abf7e/FLAGfc57139bc [2021-12-15 10:36:09,902 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:36:09,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-12-15 10:36:09,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6b4cc31/5abb744570d444e1b3675724714abf7e/FLAGfc57139bc [2021-12-15 10:36:10,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6b4cc31/5abb744570d444e1b3675724714abf7e [2021-12-15 10:36:10,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:36:10,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:36:10,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:10,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:36:10,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:36:10,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6290da55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10, skipping insertion in model container [2021-12-15 10:36:10,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:36:10,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:36:10,500 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_1121b.c[3884,3897] [2021-12-15 10:36:10,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:10,508 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:36:10,536 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_1121b.c[3884,3897] [2021-12-15 10:36:10,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:10,546 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:36:10,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10 WrapperNode [2021-12-15 10:36:10,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:10,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:10,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:36:10,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:36:10,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,594 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 224 [2021-12-15 10:36:10,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:10,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:36:10,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:36:10,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:36:10,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:36:10,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:36:10,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:36:10,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:36:10,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (1/1) ... [2021-12-15 10:36:10,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:10,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:36:10,672 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) [2021-12-15 10:36:10,681 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 [2021-12-15 10:36:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:36:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:36:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:36:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:36:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 10:36:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 10:36:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:36:10,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:36:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:36:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-15 10:36:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:36:10,759 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:36:10,761 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:36:11,025 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:36:11,030 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:36:11,031 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-15 10:36:11,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:11 BoogieIcfgContainer [2021-12-15 10:36:11,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:36:11,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:36:11,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:36:11,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:36:11,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:36:10" (1/3) ... [2021-12-15 10:36:11,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343377b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:11, skipping insertion in model container [2021-12-15 10:36:11,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:10" (2/3) ... [2021-12-15 10:36:11,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343377b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:11, skipping insertion in model container [2021-12-15 10:36:11,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:11" (3/3) ... [2021-12-15 10:36:11,039 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-12-15 10:36:11,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:36:11,043 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:36:11,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:36:11,087 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 [2021-12-15 10:36:11,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:36:11,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2021-12-15 10:36:11,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 10:36:11,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:11,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:11,105 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:11,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:11,108 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-12-15 10:36:11,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:36:11,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910577696] [2021-12-15 10:36:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:11,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:36:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:11,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:36:11,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910577696] [2021-12-15 10:36:11,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910577696] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:11,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:11,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:36:11,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137113951] [2021-12-15 10:36:11,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:11,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:36:11,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:36:11,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:36:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:36:11,280 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-12-15 10:36:11,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:36:11,307 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-12-15 10:36:11,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:36:11,309 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-12-15 10:36:11,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:36:11,316 INFO L225 Difference]: With dead ends: 108 [2021-12-15 10:36:11,317 INFO L226 Difference]: Without dead ends: 52 [2021-12-15 10:36:11,319 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 [2021-12-15 10:36:11,324 INFO L933 BasicCegarLoop]: 81 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, 81 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 [2021-12-15 10:36:11,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:36:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-15 10:36:11,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-15 10:36:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 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) [2021-12-15 10:36:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-12-15 10:36:11,364 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-12-15 10:36:11,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:36:11,364 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-12-15 10:36:11,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-12-15 10:36:11,365 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-12-15 10:36:11,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 10:36:11,366 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:11,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:11,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:36:11,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:11,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:11,371 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-12-15 10:36:11,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:36:11,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794928845] [2021-12-15 10:36:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:11,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:36:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:36:11,470 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 10:36:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:36:11,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 10:36:11,557 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 10:36:11,559 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:36:11,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 10:36:11,565 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-15 10:36:11,567 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:36:11,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:36:11 BoogieIcfgContainer [2021-12-15 10:36:11,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:36:11,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:36:11,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:36:11,602 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:36:11,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:11" (3/4) ... [2021-12-15 10:36:11,606 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 10:36:11,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:36:11,607 INFO L158 Benchmark]: Toolchain (without parser) took 1289.72ms. Allocated memory is still 119.5MB. Free memory was 83.7MB in the beginning and 40.1MB in the end (delta: 43.6MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2021-12-15 10:36:11,608 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory was 90.6MB in the beginning and 90.5MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:11,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.47ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 91.0MB in the end (delta: -7.5MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2021-12-15 10:36:11,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.07ms. Allocated memory is still 119.5MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:36:11,612 INFO L158 Benchmark]: Boogie Preprocessor took 44.60ms. Allocated memory is still 119.5MB. Free memory was 88.9MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:36:11,613 INFO L158 Benchmark]: RCFGBuilder took 389.54ms. Allocated memory is still 119.5MB. Free memory was 86.8MB in the beginning and 69.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 10:36:11,613 INFO L158 Benchmark]: TraceAbstraction took 567.37ms. Allocated memory is still 119.5MB. Free memory was 68.6MB in the beginning and 40.7MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-15 10:36:11,613 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 119.5MB. Free memory was 40.7MB in the beginning and 40.1MB in the end (delta: 592.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:11,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory was 90.6MB in the beginning and 90.5MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.47ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 91.0MB in the end (delta: -7.5MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.07ms. Allocated memory is still 119.5MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.60ms. Allocated memory is still 119.5MB. Free memory was 88.9MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 389.54ms. Allocated memory is still 119.5MB. Free memory was 86.8MB in the beginning and 69.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 567.37ms. Allocated memory is still 119.5MB. Free memory was 68.6MB in the beginning and 40.7MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 119.5MB. Free memory was 40.7MB in the beginning and 40.1MB in the end (delta: 592.2kB). 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: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 172, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L173] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [\old(x)=8589934595, \old(y)=8589934592, one_fmod=1, x=8589934595, y=8589934592, Zero_fmod={4:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [\old(x)=8589934595, \old(y)=8589934592, lx=8589934591, ly=8589934593, one_fmod=1, sx=7, x=8589934595, y=8589934592, Zero_fmod={4:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [\old(x)=8589934595, \old(y)=8589934592, hx=2146435072, lx=8589934591, ly=8589934593, one_fmod=1, sx=7, x=8589934595, y=8589934592, Zero_fmod={4:0}] [L173] RET, EXPR fmod_double(x, y) [L173] double res = fmod_double(x, y); [L176] CALL, EXPR isnan_double(res) [L18] return x != x; VAL [\old(x)=8589934594, \result=0, one_fmod=1, x=8589934594, Zero_fmod={4:0}] [L176] RET, EXPR isnan_double(res) [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [one_fmod=1, res=8589934594, x=8589934595, y=8589934592, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 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, 81 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, 81 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=55occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-12-15 10:36:11,646 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_1121b.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 eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:36:13,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:36:13,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:36:13,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:36:13,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:36:13,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:36:13,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:36:13,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:36:13,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:36:13,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:36:13,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:36:13,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:36:13,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:36:13,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:36:13,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:36:13,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:36:13,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:36:13,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:36:13,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:36:13,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:36:13,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:36:13,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:36:13,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:36:13,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:36:13,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:36:13,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:36:13,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:36:13,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:36:13,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:36:13,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:36:13,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:36:13,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:36:13,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:36:13,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:36:13,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:36:13,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:36:13,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:36:13,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:36:13,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:36:13,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:36:13,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:36:13,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:36:13,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:36:13,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:36:13,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:36:13,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:36:13,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:36:13,607 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:36:13,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:36:13,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:36:13,608 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:36:13,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:36:13,609 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:36:13,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:36:13,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:36:13,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:36:13,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:36:13,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:36:13,610 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:36:13,610 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:36:13,610 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:36:13,610 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:36:13,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:36:13,610 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:36:13,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:36:13,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:36:13,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:36:13,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:36:13,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:13,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:36:13,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:36:13,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:36:13,612 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:36:13,612 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:36:13,612 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:36:13,613 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:36:13,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:36:13,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:36:13,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:36:13,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab [2021-12-15 10:36:13,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:36:13,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:36:13,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:36:13,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:36:13,869 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:36:13,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-12-15 10:36:13,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf91533dd/d617c6cb05794a688b31d56656d50dd7/FLAGac58a7f06 [2021-12-15 10:36:14,345 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:36:14,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-12-15 10:36:14,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf91533dd/d617c6cb05794a688b31d56656d50dd7/FLAGac58a7f06 [2021-12-15 10:36:14,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf91533dd/d617c6cb05794a688b31d56656d50dd7 [2021-12-15 10:36:14,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:36:14,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:36:14,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:14,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:36:14,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:36:14,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21401868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14, skipping insertion in model container [2021-12-15 10:36:14,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:36:14,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:36:14,551 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_1121b.c[3884,3897] [2021-12-15 10:36:14,562 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:14,574 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:36:14,602 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_1121b.c[3884,3897] [2021-12-15 10:36:14,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:14,629 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:36:14,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14 WrapperNode [2021-12-15 10:36:14,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:14,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:14,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:36:14,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:36:14,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,668 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 224 [2021-12-15 10:36:14,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:14,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:36:14,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:36:14,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:36:14,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:36:14,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:36:14,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:36:14,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:36:14,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (1/1) ... [2021-12-15 10:36:14,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:14,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:36:14,725 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) [2021-12-15 10:36:14,737 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 [2021-12-15 10:36:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:36:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-15 10:36:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-15 10:36:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:36:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:36:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-15 10:36:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:36:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:36:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:36:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:36:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:36:14,848 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:36:14,850 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:36:20,224 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:36:20,229 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:36:20,230 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-15 10:36:20,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:20 BoogieIcfgContainer [2021-12-15 10:36:20,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:36:20,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:36:20,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:36:20,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:36:20,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:36:14" (1/3) ... [2021-12-15 10:36:20,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d20445e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:20, skipping insertion in model container [2021-12-15 10:36:20,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:14" (2/3) ... [2021-12-15 10:36:20,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d20445e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:20, skipping insertion in model container [2021-12-15 10:36:20,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:20" (3/3) ... [2021-12-15 10:36:20,254 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-12-15 10:36:20,258 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:36:20,259 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:36:20,303 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:36:20,310 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 [2021-12-15 10:36:20,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:36:20,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2021-12-15 10:36:20,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 10:36:20,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:20,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:20,327 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:20,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:20,331 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-12-15 10:36:20,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:36:20,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770501835] [2021-12-15 10:36:20,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:20,341 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:36:20,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:36:20,343 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) [2021-12-15 10:36:20,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:36:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:21,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 10:36:21,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:36:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:21,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:36:21,229 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:36:21,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770501835] [2021-12-15 10:36:21,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770501835] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:21,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:21,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:36:21,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024204421] [2021-12-15 10:36:21,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:21,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:36:21,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:36:21,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:36:21,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:36:21,267 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-12-15 10:36:21,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:36:21,292 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-12-15 10:36:21,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:36:21,294 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-12-15 10:36:21,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:36:21,300 INFO L225 Difference]: With dead ends: 108 [2021-12-15 10:36:21,301 INFO L226 Difference]: Without dead ends: 52 [2021-12-15 10:36:21,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:36:21,305 INFO L933 BasicCegarLoop]: 81 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, 81 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 [2021-12-15 10:36:21,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:36:21,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-15 10:36:21,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-15 10:36:21,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 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) [2021-12-15 10:36:21,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-12-15 10:36:21,330 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-12-15 10:36:21,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:36:21,330 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-12-15 10:36:21,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-12-15 10:36:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-12-15 10:36:21,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 10:36:21,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:21,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:21,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 10:36:21,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:36:21,536 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:21,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:21,537 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-12-15 10:36:21,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:36:21,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609050063] [2021-12-15 10:36:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:21,538 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:36:21,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:36:21,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:36:21,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 10:36:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:36:22,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-15 10:36:22,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:36:51,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:36:51,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:36:51,402 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:36:51,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609050063] [2021-12-15 10:36:51,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609050063] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:36:51,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:36:51,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 10:36:51,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817737015] [2021-12-15 10:36:51,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:36:51,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 10:36:51,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:36:51,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 10:36:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=26, Unknown=4, NotChecked=0, Total=42 [2021-12-15 10:36:51,405 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-15 10:36:54,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-15 10:37:00,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-15 10:37:00,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:37:00,264 INFO L93 Difference]: Finished difference Result 63 states and 87 transitions. [2021-12-15 10:37:00,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 10:37:00,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2021-12-15 10:37:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:37:00,301 INFO L225 Difference]: With dead ends: 63 [2021-12-15 10:37:00,301 INFO L226 Difference]: Without dead ends: 58 [2021-12-15 10:37:00,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=16, Invalid=36, Unknown=4, NotChecked=0, Total=56 [2021-12-15 10:37:00,302 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 76 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:37:00,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 229 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 2 Unknown, 78 Unchecked, 6.0s Time] [2021-12-15 10:37:00,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-12-15 10:37:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2021-12-15 10:37:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 51 states have internal predecessors, (77), 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) [2021-12-15 10:37:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2021-12-15 10:37:00,307 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2021-12-15 10:37:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:37:00,307 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2021-12-15 10:37:00,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-15 10:37:00,307 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2021-12-15 10:37:00,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-15 10:37:00,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:37:00,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:37:00,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 10:37:00,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:37:00,511 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:37:00,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:37:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2021-12-15 10:37:00,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:37:00,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348826909] [2021-12-15 10:37:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:37:00,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:37:00,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:37:00,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:37:00,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 10:37:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:37:00,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-15 10:37:00,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:37:00,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2021-12-15 10:37:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:37:01,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:37:01,493 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:37:01,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348826909] [2021-12-15 10:37:01,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348826909] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:37:01,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:37:01,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:37:01,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209295134] [2021-12-15 10:37:01,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:37:01,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 10:37:01,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:37:01,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 10:37:01,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 10:37:01,495 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-15 10:37:01,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:37:01,637 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2021-12-15 10:37:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 10:37:01,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2021-12-15 10:37:01,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:37:01,638 INFO L225 Difference]: With dead ends: 52 [2021-12-15 10:37:01,638 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 10:37:01,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:37:01,639 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:37:01,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2021-12-15 10:37:01,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 10:37:01,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 10:37:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-15 10:37:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 10:37:01,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-12-15 10:37:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:37:01,641 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 10:37:01,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-15 10:37:01,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 10:37:01,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 10:37:01,643 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:37:01,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-15 10:37:01,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:37:01,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 10:37:05,170 INFO L858 garLoopResultBuilder]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2021-12-15 10:37:05,170 INFO L854 garLoopResultBuilder]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2021-12-15 10:37:05,170 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L854 garLoopResultBuilder]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 159) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L55(lines 25 163) no Hoare annotation was computed. [2021-12-15 10:37:05,171 INFO L858 garLoopResultBuilder]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L854 garLoopResultBuilder]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L854 garLoopResultBuilder]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L854 garLoopResultBuilder]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 179) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 10:37:05,172 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 153) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L854 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start_fmod_double_~y#1| (fp.neg (_ +zero 11 53)))) [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L854 garLoopResultBuilder]: At program point L162(lines 25 163) the Hoare annotation is: (exists ((|ULTIMATE.start_fmod_double_~x#1| (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res#1| (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_fmod_double_~x#1| (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2021-12-15 10:37:05,173 INFO L854 garLoopResultBuilder]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 153) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 53) no Hoare annotation was computed. [2021-12-15 10:37:05,173 INFO L858 garLoopResultBuilder]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L861 garLoopResultBuilder]: At program point L181(lines 165 182) the Hoare annotation is: true [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L66(lines 25 163) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L854 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (= |ULTIMATE.start_isnan_double_#res#1| (_ bv1 32)) [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 161) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 40) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2021-12-15 10:37:05,174 INFO L858 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-12-15 10:37:05,181 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-15 10:37:05,182 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:37:05,189 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,190 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,190 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-12-15 10:37:05,190 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,190 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-12-15 10:37:05,191 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,191 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,191 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-12-15 10:37:05,191 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,191 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-12-15 10:37:05,192 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,192 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:37:05 BoogieIcfgContainer [2021-12-15 10:37:05,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:37:05,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:37:05,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:37:05,194 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:37:05,194 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:20" (3/4) ... [2021-12-15 10:37:05,196 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 10:37:05,202 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-15 10:37:05,203 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-15 10:37:05,203 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 10:37:05,203 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 10:37:05,221 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 10:37:05,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:37:05,222 INFO L158 Benchmark]: Toolchain (without parser) took 50849.64ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 31.9MB in the beginning and 33.6MB in the end (delta: -1.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2021-12-15 10:37:05,222 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:37:05,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.72ms. Allocated memory is still 54.5MB. Free memory was 31.7MB in the beginning and 29.4MB in the end (delta: 2.3MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-15 10:37:05,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.39ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 55.3MB in the end (delta: -26.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2021-12-15 10:37:05,223 INFO L158 Benchmark]: Boogie Preprocessor took 24.71ms. Allocated memory is still 71.3MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:37:05,223 INFO L158 Benchmark]: RCFGBuilder took 5537.63ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 35.3MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 10:37:05,223 INFO L158 Benchmark]: TraceAbstraction took 44958.98ms. Allocated memory is still 71.3MB. Free memory was 35.0MB in the beginning and 36.5MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:37:05,224 INFO L158 Benchmark]: Witness Printer took 28.10ms. Allocated memory is still 71.3MB. Free memory was 36.5MB in the beginning and 33.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:37:05,225 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 54.5MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.72ms. Allocated memory is still 54.5MB. Free memory was 31.7MB in the beginning and 29.4MB in the end (delta: 2.3MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.39ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 55.3MB in the end (delta: -26.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.71ms. Allocated memory is still 71.3MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5537.63ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 35.3MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 44958.98ms. Allocated memory is still 71.3MB. Free memory was 35.0MB in the beginning and 36.5MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 28.10ms. Allocated memory is still 71.3MB. Free memory was 36.5MB in the beginning and 33.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 323 SdHoareTripleChecker+Invalid, 5.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 82 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 161 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 21.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 30.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 4 QuantifiedInterpolants, 163 SizeOfPredicates, 16 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: \result == 1bv32 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant [2021-12-15 10:37:05,232 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,232 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,232 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-12-15 10:37:05,232 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,233 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-12-15 10:37:05,233 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,233 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,233 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] [2021-12-15 10:37:05,233 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,233 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x#1,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x#1 : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x#1, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x#1, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant [2021-12-15 10:37:05,234 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 10:37:05,234 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2021-12-15 10:37:05,449 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-15 10:37:05,513 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 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE