./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 ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_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-dev-ff03de6 [2021-12-21 11:55:17,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:55:17,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:55:17,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:55:17,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:55:17,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:55:17,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:55:17,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:55:17,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:55:17,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:55:17,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:55:17,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:55:17,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:55:17,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:55:17,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:55:17,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:55:17,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:55:17,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:55:17,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:55:17,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:55:17,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:55:17,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:55:17,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:55:17,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:55:17,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:55:17,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:55:17,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:55:17,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:55:17,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:55:17,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:55:17,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:55:17,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:55:17,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:55:17,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:55:17,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:55:17,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:55:17,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:55:17,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:55:17,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:55:17,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:55:17,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:55:17,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:55:17,824 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:55:17,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:55:17,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:55:17,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:55:17,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:55:17,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:55:17,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:55:17,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:55:17,827 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:55:17,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:55:17,828 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:55:17,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:55:17,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:55:17,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:55:17,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:55:17,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:55:17,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:55:17,829 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:55:17,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:55:17,829 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:55:17,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:55:17,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:55:17,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:55:17,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:55:17,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:55:17,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:55:17,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:55:17,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:55:17,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:55:17,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:55:17,831 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:55:17,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:55:17,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:55:17,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:55:17,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 [2021-12-21 11:55:18,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:55:18,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:55:18,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:55:18,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:55:18,072 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:55:18,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-12-21 11:55:18,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f415e9221/9e16e1b5e0404bb28f0ea281e39962e4/FLAG4457ad6c1 [2021-12-21 11:55:18,466 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:55:18,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-12-21 11:55:18,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f415e9221/9e16e1b5e0404bb28f0ea281e39962e4/FLAG4457ad6c1 [2021-12-21 11:55:18,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f415e9221/9e16e1b5e0404bb28f0ea281e39962e4 [2021-12-21 11:55:18,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:55:18,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:55:18,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:55:18,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:55:18,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:55:18,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc23dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18, skipping insertion in model container [2021-12-21 11:55:18,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:55:18,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:55:18,781 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] [2021-12-21 11:55:18,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:55:18,796 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:55:18,832 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] [2021-12-21 11:55:18,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:55:18,843 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:55:18,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18 WrapperNode [2021-12-21 11:55:18,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:55:18,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:55:18,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:55:18,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:55:18,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,892 INFO L137 Inliner]: procedures = 19, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 227 [2021-12-21 11:55:18,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:55:18,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:55:18,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:55:18,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:55:18,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:55:18,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:55:18,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:55:18,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:55:18,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (1/1) ... [2021-12-21 11:55:18,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:55:18,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:55:18,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 11:55:18,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 11:55:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:55:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:55:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:55:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 11:55:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 11:55:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-12-21 11:55:19,005 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-12-21 11:55:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-21 11:55:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-12-21 11:55:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-12-21 11:55:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:55:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:55:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 11:55:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-21 11:55:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:55:19,092 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:55:19,094 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:55:19,403 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:55:19,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:55:19,411 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-21 11:55:19,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:55:19 BoogieIcfgContainer [2021-12-21 11:55:19,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:55:19,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:55:19,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:55:19,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:55:19,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:55:18" (1/3) ... [2021-12-21 11:55:19,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1731b23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:55:19, skipping insertion in model container [2021-12-21 11:55:19,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:18" (2/3) ... [2021-12-21 11:55:19,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1731b23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:55:19, skipping insertion in model container [2021-12-21 11:55:19,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:55:19" (3/3) ... [2021-12-21 11:55:19,420 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2021-12-21 11:55:19,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:55:19,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:55:19,462 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:55:19,469 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 11:55:19,469 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:55:19,485 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) [2021-12-21 11:55:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-21 11:55:19,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:55:19,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:55:19,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:55:19,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:55:19,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2113749773, now seen corresponding path program 1 times [2021-12-21 11:55:19,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:55:19,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687531289] [2021-12-21 11:55:19,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:55:19,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:55:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:55:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:55:19,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:55:19,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687531289] [2021-12-21 11:55:19,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687531289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:55:19,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:55:19,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:55:19,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300022998] [2021-12-21 11:55:19,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:55:19,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:55:19,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:55:19,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:55:19,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:55:19,653 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) [2021-12-21 11:55:19,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:55:19,688 INFO L93 Difference]: Finished difference Result 185 states and 302 transitions. [2021-12-21 11:55:19,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:55:19,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-21 11:55:19,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:55:19,696 INFO L225 Difference]: With dead ends: 185 [2021-12-21 11:55:19,697 INFO L226 Difference]: Without dead ends: 90 [2021-12-21 11:55:19,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:55:19,705 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 [2021-12-21 11:55:19,706 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] [2021-12-21 11:55:19,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-21 11:55:19,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-21 11:55:19,738 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) [2021-12-21 11:55:19,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2021-12-21 11:55:19,744 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 11 [2021-12-21 11:55:19,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:55:19,744 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-12-21 11:55:19,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:55:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2021-12-21 11:55:19,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-21 11:55:19,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:55:19,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:55:19,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:55:19,746 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:55:19,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:55:19,748 INFO L85 PathProgramCache]: Analyzing trace with hash -177099114, now seen corresponding path program 1 times [2021-12-21 11:55:19,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:55:19,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863818723] [2021-12-21 11:55:19,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:55:19,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:55:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:55:19,845 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:55:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:55:19,917 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:55:19,918 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:55:19,919 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:55:19,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:55:19,950 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:55:19,952 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:55:19,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:55:19 BoogieIcfgContainer [2021-12-21 11:55:20,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:55:20,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:55:20,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:55:20,002 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:55:20,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:55:19" (3/4) ... [2021-12-21 11:55:20,005 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:55:20,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:55:20,006 INFO L158 Benchmark]: Toolchain (without parser) took 1507.08ms. Allocated memory is still 163.6MB. Free memory was 134.7MB in the beginning and 135.5MB in the end (delta: -789.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:55:20,006 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:55:20,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.99ms. Allocated memory is still 163.6MB. Free memory was 134.7MB in the beginning and 135.1MB in the end (delta: -449.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:55:20,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.06ms. Allocated memory is still 163.6MB. Free memory was 135.1MB in the beginning and 133.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:55:20,011 INFO L158 Benchmark]: Boogie Preprocessor took 32.21ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 130.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:55:20,011 INFO L158 Benchmark]: RCFGBuilder took 485.82ms. Allocated memory is still 163.6MB. Free memory was 130.5MB in the beginning and 108.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-21 11:55:20,012 INFO L158 Benchmark]: TraceAbstraction took 586.82ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 136.4MB in the end (delta: -28.4MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2021-12-21 11:55:20,013 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 163.6MB. Free memory was 136.4MB in the beginning and 135.5MB in the end (delta: 903.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:55:20,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.99ms. Allocated memory is still 163.6MB. Free memory was 134.7MB in the beginning and 135.1MB in the end (delta: -449.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.06ms. Allocated memory is still 163.6MB. Free memory was 135.1MB in the beginning and 133.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.21ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 130.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 485.82ms. Allocated memory is still 163.6MB. Free memory was 130.5MB in the beginning and 108.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 586.82ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 136.4MB in the end (delta: -28.4MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 163.6MB. Free memory was 136.4MB in the beginning and 135.5MB in the end (delta: 903.7kB). 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, 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=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s 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 [2021-12-21 11:55:20,051 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-dev-ff03de6 [2021-12-21 11:55:21,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:55:21,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:55:21,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:55:21,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:55:21,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:55:21,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:55:21,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:55:21,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:55:21,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:55:21,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:55:21,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:55:21,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:55:21,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:55:21,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:55:21,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:55:21,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:55:21,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:55:21,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:55:21,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:55:21,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:55:21,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:55:21,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:55:21,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:55:21,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:55:21,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:55:21,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:55:21,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:55:21,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:55:21,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:55:21,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:55:21,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:55:21,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:55:21,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:55:21,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:55:21,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:55:21,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:55:21,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:55:21,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:55:21,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:55:21,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:55:21,952 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:55:21,984 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:55:21,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:55:21,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:55:21,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:55:21,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:55:21,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:55:21,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:55:21,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:55:21,985 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:55:21,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:55:21,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:55:21,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:55:21,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:55:21,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:55:21,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:55:21,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:55:21,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:55:21,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b9ef3c37243ea1f2055947b64f65c02591cc70d7ea8c31a5f3a0bcc617aaa7 [2021-12-21 11:55:22,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:55:22,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:55:22,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:55:22,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:55:22,268 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:55:22,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-12-21 11:55:22,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45303d227/e90042bbb93148d5b82a55236d718cff/FLAGe5ec1b7da [2021-12-21 11:55:22,639 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:55:22,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0663a.c [2021-12-21 11:55:22,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45303d227/e90042bbb93148d5b82a55236d718cff/FLAGe5ec1b7da [2021-12-21 11:55:23,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45303d227/e90042bbb93148d5b82a55236d718cff [2021-12-21 11:55:23,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:55:23,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:55:23,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:55:23,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:55:23,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:55:23,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a456161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23, skipping insertion in model container [2021-12-21 11:55:23,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:55:23,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:55:23,209 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] [2021-12-21 11:55:23,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:55:23,224 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:55:23,299 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] [2021-12-21 11:55:23,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:55:23,313 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:55:23,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23 WrapperNode [2021-12-21 11:55:23,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:55:23,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:55:23,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:55:23,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:55:23,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,360 INFO L137 Inliner]: procedures = 22, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 228 [2021-12-21 11:55:23,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:55:23,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:55:23,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:55:23,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:55:23,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:55:23,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:55:23,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:55:23,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:55:23,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (1/1) ... [2021-12-21 11:55:23,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:55:23,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:55:23,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 11:55:23,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 11:55:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-12-21 11:55:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-12-21 11:55:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:55:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:55:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 11:55:23,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:55:23,604 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:55:23,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:55:44,590 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:55:44,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:55:44,596 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-21 11:55:44,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:55:44 BoogieIcfgContainer [2021-12-21 11:55:44,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:55:44,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:55:44,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:55:44,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:55:44,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:55:23" (1/3) ... [2021-12-21 11:55:44,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd2e8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:55:44, skipping insertion in model container [2021-12-21 11:55:44,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:55:23" (2/3) ... [2021-12-21 11:55:44,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd2e8d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:55:44, skipping insertion in model container [2021-12-21 11:55:44,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:55:44" (3/3) ... [2021-12-21 11:55:44,610 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2021-12-21 11:55:44,615 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:55:44,615 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:55:44,648 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:55:44,653 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 11:55:44,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:55:44,667 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) [2021-12-21 11:55:44,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-21 11:55:44,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:55:44,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:55:44,671 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:55:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:55:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2113749773, now seen corresponding path program 1 times [2021-12-21 11:55:44,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:55:44,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657715764] [2021-12-21 11:55:44,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:55:44,687 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:55:44,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:55:44,690 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) [2021-12-21 11:55:44,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 11:55:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:55:45,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 11:55:45,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:55:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:55:45,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:55:45,300 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:55:45,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657715764] [2021-12-21 11:55:45,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657715764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:55:45,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:55:45,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:55:45,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864388405] [2021-12-21 11:55:45,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:55:45,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:55:45,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:55:45,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:55:45,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:55:45,329 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) [2021-12-21 11:55:45,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:55:45,359 INFO L93 Difference]: Finished difference Result 185 states and 302 transitions. [2021-12-21 11:55:45,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:55:45,361 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-21 11:55:45,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:55:45,368 INFO L225 Difference]: With dead ends: 185 [2021-12-21 11:55:45,369 INFO L226 Difference]: Without dead ends: 90 [2021-12-21 11:55:45,378 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 [2021-12-21 11:55:45,382 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 [2021-12-21 11:55:45,384 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] [2021-12-21 11:55:45,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-21 11:55:45,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-21 11:55:45,410 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) [2021-12-21 11:55:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2021-12-21 11:55:45,413 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 11 [2021-12-21 11:55:45,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:55:45,413 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-12-21 11:55:45,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:55:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2021-12-21 11:55:45,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-21 11:55:45,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:55:45,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:55:45,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-21 11:55:45,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:55:45,640 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:55:45,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:55:45,641 INFO L85 PathProgramCache]: Analyzing trace with hash -177099114, now seen corresponding path program 1 times [2021-12-21 11:55:45,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:55:45,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809461990] [2021-12-21 11:55:45,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:55:45,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:55:45,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:55:45,643 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) [2021-12-21 11:55:45,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 11:55:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:55:46,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-21 11:55:46,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:55:46,925 INFO L387 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 [2021-12-21 11:55:49,557 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 11:55:49,557 INFO L387 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 [2021-12-21 11:55:50,017 INFO L387 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 [2021-12-21 11:55:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:55:54,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:55:54,332 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:55:54,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809461990] [2021-12-21 11:55:54,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809461990] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:55:54,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:55:54,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 11:55:54,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344476487] [2021-12-21 11:55:54,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:55:54,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 11:55:54,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:55:54,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 11:55:54,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-21 11:55:54,335 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) [2021-12-21 11:55:55,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:55:55,430 INFO L93 Difference]: Finished difference Result 94 states and 132 transitions. [2021-12-21 11:55:55,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 11:55:55,431 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 [2021-12-21 11:55:55,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:55:55,432 INFO L225 Difference]: With dead ends: 94 [2021-12-21 11:55:55,432 INFO L226 Difference]: Without dead ends: 90 [2021-12-21 11:55:55,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-21 11:55:55,433 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 5 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 11:55:55,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 793 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 66 Unchecked, 0.1s Time] [2021-12-21 11:55:55,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-12-21 11:55:55,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-12-21 11:55:55,440 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) [2021-12-21 11:55:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2021-12-21 11:55:55,441 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 13 [2021-12-21 11:55:55,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:55:55,442 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2021-12-21 11:55:55,442 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) [2021-12-21 11:55:55,442 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2021-12-21 11:55:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-21 11:55:55,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:55:55,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:55:55,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-21 11:55:55,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:55:55,659 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:55:55,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:55:55,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1590624253, now seen corresponding path program 1 times [2021-12-21 11:55:55,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:55:55,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332535716] [2021-12-21 11:55:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:55:55,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:55:55,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:55:55,680 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) [2021-12-21 11:55:55,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-21 11:55:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:55:56,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 11:55:56,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:56:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:56:02,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:56:02,326 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:56:02,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332535716] [2021-12-21 11:56:02,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332535716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:56:02,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:56:02,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:56:02,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029349150] [2021-12-21 11:56:02,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:56:02,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 11:56:02,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:56:02,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 11:56:02,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:56:02,337 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) [2021-12-21 11:56:16,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:56:18,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:56:20,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:56:22,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:56:29,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 11:56:30,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:56:33,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-21 11:56:35,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []