./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0663a.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_0663a.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 a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:31:32,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:31:32,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:31:32,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:31:32,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:31:32,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:31:32,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:31:32,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:31:32,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:31:32,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:31:32,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:31:32,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:31:32,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:31:32,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:31:32,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:31:32,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:31:32,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:31:32,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:31:32,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:31:32,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:31:32,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:31:32,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:31:32,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:31:32,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:31:32,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:31:32,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:31:32,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:31:32,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:31:32,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:31:32,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:31:32,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:31:32,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:31:32,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:31:32,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:31:32,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:31:32,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:31:32,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:31:32,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:31:32,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:31:32,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:31:32,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:31:32,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:31:32,376 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:31:32,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:31:32,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:31:32,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:31:32,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:31:32,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:31:32,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:31:32,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:31:32,381 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:31:32,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:31:32,382 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:31:32,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:31:32,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:31:32,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:31:32,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:31:32,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:31:32,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:31:32,384 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:31:32,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:31:32,384 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:31:32,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:31:32,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:31:32,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:31:32,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:31:32,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:31:32,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:31:32,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:31:32,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:31:32,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:31:32,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:31:32,387 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:31:32,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:31:32,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:31:32,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:31:32,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 [2021-12-15 10:31:32,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:31:32,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:31:32,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:31:32,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:31:32,631 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:31:32,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-12-15 10:31:32,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9646c18e1/ddaa8684658642ae966547eca9749a9a/FLAGb82d2158b [2021-12-15 10:31:33,112 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:31:33,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-12-15 10:31:33,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9646c18e1/ddaa8684658642ae966547eca9749a9a/FLAGb82d2158b [2021-12-15 10:31:33,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9646c18e1/ddaa8684658642ae966547eca9749a9a [2021-12-15 10:31:33,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:31:33,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:31:33,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:31:33,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:31:33,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:31:33,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e05d3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33, skipping insertion in model container [2021-12-15 10:31:33,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:31:33,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:31:33,726 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_0663a.c[6220,6233] [2021-12-15 10:31:33,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:31:33,744 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:31:33,825 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_0663a.c[6220,6233] [2021-12-15 10:31:33,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:31:33,849 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:31:33,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33 WrapperNode [2021-12-15 10:31:33,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:31:33,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:31:33,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:31:33,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:31:33,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,915 INFO L137 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 227 [2021-12-15 10:31:33,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:31:33,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:31:33,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:31:33,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:31:33,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:31:33,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:31:33,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:31:33,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:31:33,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (1/1) ... [2021-12-15 10:31:33,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:31:34,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:31:34,013 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 10:31:34,014 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 10:31:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:31:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:31:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:31:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 10:31:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:31:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-12-15 10:31:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-12-15 10:31:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 10:31:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-12-15 10:31:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-12-15 10:31:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:31:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:31:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:31:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-15 10:31:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:31:34,173 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:31:34,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:31:34,550 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:31:34,556 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:31:34,556 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-15 10:31:34,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:31:34 BoogieIcfgContainer [2021-12-15 10:31:34,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:31:34,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:31:34,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:31:34,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:31:34,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:31:33" (1/3) ... [2021-12-15 10:31:34,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5dab99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:31:34, skipping insertion in model container [2021-12-15 10:31:34,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:33" (2/3) ... [2021-12-15 10:31:34,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5dab99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:31:34, skipping insertion in model container [2021-12-15 10:31:34,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:31:34" (3/3) ... [2021-12-15 10:31:34,565 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2021-12-15 10:31:34,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:31:34,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:31:34,598 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:31:34,603 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 10:31:34,603 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:31:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:31:34,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:31:34,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:31:34,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:31:34,620 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:31:34,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:31:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2113749773, now seen corresponding path program 1 times [2021-12-15 10:31:34,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:31:34,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777661407] [2021-12-15 10:31:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:31:34,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:31:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:31:34,772 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 10:31:34,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:31:34,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777661407] [2021-12-15 10:31:34,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777661407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:31:34,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:31:34,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:31:34,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052833753] [2021-12-15 10:31:34,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:31:34,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:31:34,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:31:34,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:31:34,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:31:34,802 INFO L87 Difference]: Start difference. First operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:31:34,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:31:34,850 INFO L93 Difference]: Finished difference Result 185 states and 302 transitions. [2021-12-15 10:31:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:31:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-15 10:31:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:31:34,860 INFO L225 Difference]: With dead ends: 185 [2021-12-15 10:31:34,860 INFO L226 Difference]: Without dead ends: 90 [2021-12-15 10:31:34,864 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 10:31:34,869 INFO L933 BasicCegarLoop]: 134 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, 134 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 10:31:34,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:31:34,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-15 10:31:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-15 10:31:34,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:31:34,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2021-12-15 10:31:34,937 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 11 [2021-12-15 10:31:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:31:34,937 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-12-15 10:31:34,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:31:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2021-12-15 10:31:34,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 10:31:34,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:31:34,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:31:34,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:31:34,940 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:31:34,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:31:34,943 INFO L85 PathProgramCache]: Analyzing trace with hash -177099114, now seen corresponding path program 1 times [2021-12-15 10:31:34,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:31:34,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316595307] [2021-12-15 10:31:34,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:31:34,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:31:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:31:35,044 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 10:31:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:31:35,151 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 10:31:35,152 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 10:31:35,155 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:31:35,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 10:31:35,159 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-15 10:31:35,161 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:31:35,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:31:35 BoogieIcfgContainer [2021-12-15 10:31:35,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:31:35,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:31:35,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:31:35,209 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:31:35,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:31:34" (3/4) ... [2021-12-15 10:31:35,212 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 10:31:35,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:31:35,214 INFO L158 Benchmark]: Toolchain (without parser) took 1699.65ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 58.0MB in the beginning and 68.6MB in the end (delta: -10.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-12-15 10:31:35,214 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:31:35,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.06ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 57.8MB in the beginning and 79.6MB in the end (delta: -21.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:31:35,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.92ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 77.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:31:35,221 INFO L158 Benchmark]: Boogie Preprocessor took 56.72ms. Allocated memory is still 107.0MB. Free memory was 77.2MB in the beginning and 74.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 10:31:35,221 INFO L158 Benchmark]: RCFGBuilder took 582.72ms. Allocated memory is still 107.0MB. Free memory was 74.5MB in the beginning and 53.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-15 10:31:35,222 INFO L158 Benchmark]: TraceAbstraction took 648.80ms. Allocated memory is still 107.0MB. Free memory was 53.6MB in the beginning and 68.9MB in the end (delta: -15.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:31:35,222 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 68.6MB in the end (delta: 271.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:31:35,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.06ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 57.8MB in the beginning and 79.6MB in the end (delta: -21.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.92ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 77.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.72ms. Allocated memory is still 107.0MB. Free memory was 77.2MB in the beginning and 74.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 582.72ms. Allocated memory is still 107.0MB. Free memory was 74.5MB in the beginning and 53.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 648.80ms. Allocated memory is still 107.0MB. Free memory was 53.6MB in the beginning and 68.9MB in the end (delta: -15.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 68.6MB in the end (delta: 271.3kB). 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: 262]: 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 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] double x = -0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y > 0.0 [L258] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] [L262] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 134 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, 134 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=94occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-15 10:31:35,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_0663a.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 a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:31:37,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:31:37,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:31:37,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:31:37,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:31:37,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:31:37,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:31:37,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:31:37,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:31:37,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:31:37,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:31:37,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:31:37,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:31:37,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:31:37,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:31:37,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:31:37,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:31:37,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:31:37,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:31:37,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:31:37,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:31:37,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:31:37,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:31:37,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:31:37,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:31:37,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:31:37,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:31:37,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:31:37,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:31:37,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:31:37,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:31:37,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:31:37,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:31:37,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:31:37,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:31:37,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:31:37,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:31:37,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:31:37,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:31:37,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:31:37,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:31:37,212 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:31:37,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:31:37,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:31:37,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:31:37,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:31:37,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:31:37,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:31:37,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:31:37,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:31:37,248 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:31:37,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:31:37,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:31:37,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:31:37,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:31:37,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:31:37,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:31:37,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:31:37,250 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:31:37,250 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:31:37,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:31:37,250 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:31:37,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:31:37,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:31:37,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:31:37,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:31:37,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:31:37,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:31:37,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:31:37,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:31:37,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:31:37,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:31:37,252 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:31:37,252 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:31:37,253 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:31:37,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:31:37,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:31:37,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:31:37,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:31:37,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 [2021-12-15 10:31:37,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:31:37,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:31:37,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:31:37,586 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:31:37,586 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:31:37,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-12-15 10:31:37,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee50db93/0a3e2532870b4c2db4635b2861035291/FLAG7f0764957 [2021-12-15 10:31:38,068 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:31:38,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-12-15 10:31:38,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee50db93/0a3e2532870b4c2db4635b2861035291/FLAG7f0764957 [2021-12-15 10:31:38,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee50db93/0a3e2532870b4c2db4635b2861035291 [2021-12-15 10:31:38,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:31:38,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:31:38,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:31:38,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:31:38,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:31:38,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d08b90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38, skipping insertion in model container [2021-12-15 10:31:38,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:31:38,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:31:38,718 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_0663a.c[6220,6233] [2021-12-15 10:31:38,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:31:38,748 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:31:38,822 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_0663a.c[6220,6233] [2021-12-15 10:31:38,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:31:38,855 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:31:38,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38 WrapperNode [2021-12-15 10:31:38,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:31:38,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:31:38,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:31:38,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:31:38,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,924 INFO L137 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 228 [2021-12-15 10:31:38,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:31:38,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:31:38,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:31:38,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:31:38,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:38,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:31:39,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:31:39,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:31:39,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:31:39,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (1/1) ... [2021-12-15 10:31:39,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:31:39,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:31:39,032 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 10:31:39,057 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 10:31:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:31:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-15 10:31:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-15 10:31:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:31:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:31:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-12-15 10:31:39,078 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-12-15 10:31:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-15 10:31:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-12-15 10:31:39,079 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-12-15 10:31:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:31:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:31:39,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:31:39,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:31:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:31:39,187 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:31:39,189 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:32:00,290 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:32:00,296 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:32:00,296 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-15 10:32:00,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:32:00 BoogieIcfgContainer [2021-12-15 10:32:00,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:32:00,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:32:00,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:32:00,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:32:00,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:31:38" (1/3) ... [2021-12-15 10:32:00,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60db7422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:32:00, skipping insertion in model container [2021-12-15 10:32:00,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:31:38" (2/3) ... [2021-12-15 10:32:00,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60db7422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:32:00, skipping insertion in model container [2021-12-15 10:32:00,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:32:00" (3/3) ... [2021-12-15 10:32:00,304 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2021-12-15 10:32:00,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:32:00,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:32:00,342 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:32:00,347 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 10:32:00,348 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:32:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:00,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:32:00,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:00,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:00,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:00,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:00,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2113749773, now seen corresponding path program 1 times [2021-12-15 10:32:00,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:32:00,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195519378] [2021-12-15 10:32:00,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:00,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:32:00,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:32:00,387 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 10:32:00,389 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 10:32:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:32:00,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 10:32:00,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:32:00,971 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 10:32:00,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:32:00,972 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:32:00,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195519378] [2021-12-15 10:32:00,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195519378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:32:00,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:32:00,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:32:00,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341920633] [2021-12-15 10:32:00,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:32:00,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:32:00,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:32:00,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:32:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:32:01,000 INFO L87 Difference]: Start difference. First operand has 94 states, 86 states have (on average 1.6627906976744187) internal successors, (143), 87 states have internal predecessors, (143), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:32:01,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:32:01,025 INFO L93 Difference]: Finished difference Result 185 states and 302 transitions. [2021-12-15 10:32:01,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:32:01,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-15 10:32:01,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:32:01,031 INFO L225 Difference]: With dead ends: 185 [2021-12-15 10:32:01,031 INFO L226 Difference]: Without dead ends: 90 [2021-12-15 10:32:01,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 10:32:01,037 INFO L933 BasicCegarLoop]: 134 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, 134 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 10:32:01,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:32:01,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-15 10:32:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-15 10:32:01,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 83 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:01,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2021-12-15 10:32:01,070 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 11 [2021-12-15 10:32:01,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:32:01,071 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-12-15 10:32:01,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:32:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2021-12-15 10:32:01,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 10:32:01,072 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:01,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:01,087 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 10:32:01,273 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 10:32:01,274 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:01,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:01,275 INFO L85 PathProgramCache]: Analyzing trace with hash -177099114, now seen corresponding path program 1 times [2021-12-15 10:32:01,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:32:01,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022108030] [2021-12-15 10:32:01,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:01,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:32:01,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:32:01,277 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 10:32:01,280 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 10:32:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:32:01,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-15 10:32:01,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:32:02,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2021-12-15 10:32:05,358 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 10:32:05,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-12-15 10:32:05,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 10 [2021-12-15 10:32:12,166 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 10:32:12,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:32:12,166 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:32:12,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022108030] [2021-12-15 10:32:12,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022108030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:32:12,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:32:12,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 10:32:12,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116334765] [2021-12-15 10:32:12,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:32:12,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 10:32:12,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:32:12,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 10:32:12,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=41, Unknown=2, NotChecked=0, Total=56 [2021-12-15 10:32:12,169 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 10:32:13,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:32:13,132 INFO L93 Difference]: Finished difference Result 94 states and 132 transitions. [2021-12-15 10:32:13,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 10:32:13,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 13 [2021-12-15 10:32:13,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:32:13,136 INFO L225 Difference]: With dead ends: 94 [2021-12-15 10:32:13,136 INFO L226 Difference]: Without dead ends: 90 [2021-12-15 10:32:13,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2021-12-15 10:32:13,137 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 5 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 10:32:13,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 792 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 67 Unchecked, 0.1s Time] [2021-12-15 10:32:13,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-15 10:32:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-15 10:32:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.4457831325301205) internal successors, (120), 83 states have internal predecessors, (120), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2021-12-15 10:32:13,149 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 13 [2021-12-15 10:32:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:32:13,149 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2021-12-15 10:32:13,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 10:32:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2021-12-15 10:32:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 10:32:13,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:13,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:13,166 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 10:32:13,351 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 10:32:13,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1590624253, now seen corresponding path program 1 times [2021-12-15 10:32:13,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:32:13,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445027224] [2021-12-15 10:32:13,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:13,353 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:32:13,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:32:13,354 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 10:32:13,355 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 10:32:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:32:13,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 10:32:13,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:32:19,567 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 10:32:19,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:32:19,567 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:32:19,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445027224] [2021-12-15 10:32:19,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445027224] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:32:19,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:32:19,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:32:19,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228835612] [2021-12-15 10:32:19,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:32:19,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 10:32:19,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:32:19,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 10:32:19,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:32:19,570 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 10:32:29,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-15 10:32:33,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-15 10:32:35,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-15 10:32:37,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-15 10:32:40,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []