./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0681b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/float_req_bl_0681b.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 59a805f7b1f66e1cd00f55de4439c43d154527529f8b973c97448a204b217c8d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:29:08,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:29:08,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:29:08,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:29:08,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:29:08,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:29:08,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:29:08,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:29:08,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:29:08,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:29:08,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:29:08,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:29:08,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:29:08,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:29:08,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:29:08,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:29:08,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:29:08,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:29:08,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:29:08,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:29:08,460 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:29:08,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:29:08,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:29:08,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:29:08,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:29:08,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:29:08,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:29:08,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:29:08,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:29:08,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:29:08,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:29:08,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:29:08,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:29:08,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:29:08,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:29:08,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:29:08,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:29:08,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:29:08,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:29:08,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:29:08,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:29:08,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:29:08,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 14:29:08,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:29:08,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:29:08,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:29:08,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:29:08,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:29:08,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:29:08,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:29:08,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:29:08,509 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:29:08,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:29:08,510 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:29:08,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 14:29:08,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:29:08,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:29:08,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:29:08,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:29:08,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:29:08,511 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:29:08,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:29:08,511 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:29:08,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:29:08,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:29:08,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:29:08,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:29:08,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:29:08,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:29:08,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:29:08,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:29:08,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 14:29:08,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 14:29:08,513 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:29:08,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:29:08,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:29:08,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59a805f7b1f66e1cd00f55de4439c43d154527529f8b973c97448a204b217c8d [2022-07-22 14:29:08,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:29:08,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:29:08,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:29:08,736 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:29:08,736 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:29:08,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0681b.c [2022-07-22 14:29:08,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961d7bd8a/ae407f27d90d4ca09c4e1a4e2d2529a0/FLAG7d7cc223e [2022-07-22 14:29:09,176 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:29:09,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681b.c [2022-07-22 14:29:09,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961d7bd8a/ae407f27d90d4ca09c4e1a4e2d2529a0/FLAG7d7cc223e [2022-07-22 14:29:09,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961d7bd8a/ae407f27d90d4ca09c4e1a4e2d2529a0 [2022-07-22 14:29:09,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:29:09,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:29:09,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:29:09,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:29:09,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:29:09,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7641330c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09, skipping insertion in model container [2022-07-22 14:29:09,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:29:09,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:29:09,457 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/float_req_bl_0681b.c[5432,5445] [2022-07-22 14:29:09,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:29:09,471 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:29:09,523 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/float_req_bl_0681b.c[5432,5445] [2022-07-22 14:29:09,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:29:09,546 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:29:09,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09 WrapperNode [2022-07-22 14:29:09,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:29:09,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:29:09,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:29:09,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:29:09,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,603 INFO L137 Inliner]: procedures = 20, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 276 [2022-07-22 14:29:09,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:29:09,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:29:09,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:29:09,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:29:09,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:29:09,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:29:09,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:29:09,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:29:09,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (1/1) ... [2022-07-22 14:29:09,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:29:09,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:29:09,675 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) [2022-07-22 14:29:09,683 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 [2022-07-22 14:29:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:29:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 14:29:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:29:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-22 14:29:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 14:29:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-22 14:29:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-07-22 14:29:09,718 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-07-22 14:29:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:29:09,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:29:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 14:29:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-22 14:29:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-07-22 14:29:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-07-22 14:29:09,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:29:09,804 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:29:09,805 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:29:10,117 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:29:10,123 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:29:10,123 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-22 14:29:10,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:10 BoogieIcfgContainer [2022-07-22 14:29:10,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:29:10,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:29:10,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:29:10,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:29:10,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:29:09" (1/3) ... [2022-07-22 14:29:10,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b80f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:29:10, skipping insertion in model container [2022-07-22 14:29:10,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:09" (2/3) ... [2022-07-22 14:29:10,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b80f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:29:10, skipping insertion in model container [2022-07-22 14:29:10,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:10" (3/3) ... [2022-07-22 14:29:10,131 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681b.c [2022-07-22 14:29:10,141 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:29:10,142 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:29:10,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:29:10,183 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@64463f41, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17ae95d2 [2022-07-22 14:29:10,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:29:10,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 100 states have (on average 1.73) internal successors, (173), 101 states have internal predecessors, (173), 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) [2022-07-22 14:29:10,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:29:10,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:10,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:10,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:10,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:10,207 INFO L85 PathProgramCache]: Analyzing trace with hash 434050506, now seen corresponding path program 1 times [2022-07-22 14:29:10,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:29:10,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946718298] [2022-07-22 14:29:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:10,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:29:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:10,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:10,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:29:10,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946718298] [2022-07-22 14:29:10,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946718298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:10,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:10,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:29:10,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403991763] [2022-07-22 14:29:10,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:10,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:29:10,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:29:10,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:29:10,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:29:10,361 INFO L87 Difference]: Start difference. First operand has 108 states, 100 states have (on average 1.73) internal successors, (173), 101 states have internal predecessors, (173), 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) [2022-07-22 14:29:10,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:10,400 INFO L93 Difference]: Finished difference Result 214 states and 364 transitions. [2022-07-22 14:29:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:29:10,402 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 [2022-07-22 14:29:10,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:10,429 INFO L225 Difference]: With dead ends: 214 [2022-07-22 14:29:10,429 INFO L226 Difference]: Without dead ends: 105 [2022-07-22 14:29:10,433 INFO L412 NwaCegarLoop]: 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 [2022-07-22 14:29:10,436 INFO L413 NwaCegarLoop]: 158 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, 158 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 [2022-07-22 14:29:10,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:29:10,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-22 14:29:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-07-22 14:29:10,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 98 states have (on average 1.5) internal successors, (147), 98 states have internal predecessors, (147), 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) [2022-07-22 14:29:10,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 155 transitions. [2022-07-22 14:29:10,468 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 155 transitions. Word has length 11 [2022-07-22 14:29:10,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:10,468 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 155 transitions. [2022-07-22 14:29:10,468 INFO L496 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) [2022-07-22 14:29:10,469 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 155 transitions. [2022-07-22 14:29:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:29:10,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:10,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:10,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 14:29:10,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1548184466, now seen corresponding path program 1 times [2022-07-22 14:29:10,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:29:10,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490605529] [2022-07-22 14:29:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:10,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:29:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:10,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 14:29:10,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490605529] [2022-07-22 14:29:10,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490605529] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:10,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:10,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 14:29:10,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173443893] [2022-07-22 14:29:10,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:10,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 14:29:10,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 14:29:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 14:29:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:29:10,576 INFO L87 Difference]: Start difference. First operand 105 states and 155 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-07-22 14:29:10,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:10,641 INFO L93 Difference]: Finished difference Result 233 states and 342 transitions. [2022-07-22 14:29:10,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 14:29:10,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 [2022-07-22 14:29:10,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:10,643 INFO L225 Difference]: With dead ends: 233 [2022-07-22 14:29:10,643 INFO L226 Difference]: Without dead ends: 157 [2022-07-22 14:29:10,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:29:10,645 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 93 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:10,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 334 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:29:10,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-07-22 14:29:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 132. [2022-07-22 14:29:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 125 states have (on average 1.536) internal successors, (192), 125 states have internal predecessors, (192), 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) [2022-07-22 14:29:10,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 200 transitions. [2022-07-22 14:29:10,658 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 200 transitions. Word has length 13 [2022-07-22 14:29:10,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:10,659 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 200 transitions. [2022-07-22 14:29:10,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-07-22 14:29:10,659 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 200 transitions. [2022-07-22 14:29:10,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 14:29:10,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:10,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:10,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 14:29:10,660 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:10,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:10,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1283242459, now seen corresponding path program 1 times [2022-07-22 14:29:10,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 14:29:10,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289672052] [2022-07-22 14:29:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:10,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 14:29:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:29:10,704 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 14:29:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 14:29:10,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 14:29:10,773 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 14:29:10,774 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:29:10,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 14:29:10,778 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-22 14:29:10,780 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:29:10,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:29:10 BoogieIcfgContainer [2022-07-22 14:29:10,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:29:10,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:29:10,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:29:10,830 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:29:10,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:10" (3/4) ... [2022-07-22 14:29:10,832 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 14:29:10,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:29:10,833 INFO L158 Benchmark]: Toolchain (without parser) took 1633.59ms. Allocated memory is still 111.1MB. Free memory was 78.2MB in the beginning and 55.8MB in the end (delta: 22.4MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2022-07-22 14:29:10,834 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 34.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:29:10,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.15ms. Allocated memory is still 111.1MB. Free memory was 78.0MB in the beginning and 82.9MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 14:29:10,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.15ms. Allocated memory is still 111.1MB. Free memory was 82.9MB in the beginning and 80.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:29:10,839 INFO L158 Benchmark]: Boogie Preprocessor took 28.44ms. Allocated memory is still 111.1MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:29:10,840 INFO L158 Benchmark]: RCFGBuilder took 492.14ms. Allocated memory is still 111.1MB. Free memory was 77.7MB in the beginning and 53.4MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-22 14:29:10,840 INFO L158 Benchmark]: TraceAbstraction took 702.08ms. Allocated memory is still 111.1MB. Free memory was 53.1MB in the beginning and 56.4MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:29:10,840 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 111.1MB. Free memory was 56.4MB in the beginning and 55.8MB in the end (delta: 624.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:29:10,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 34.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.15ms. Allocated memory is still 111.1MB. Free memory was 78.0MB in the beginning and 82.9MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.15ms. Allocated memory is still 111.1MB. Free memory was 82.9MB in the beginning and 80.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.44ms. Allocated memory is still 111.1MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 492.14ms. Allocated memory is still 111.1MB. Free memory was 77.7MB in the beginning and 53.4MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 702.08ms. Allocated memory is still 111.1MB. Free memory was 53.1MB in the beginning and 56.4MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 111.1MB. Free memory was 56.4MB in the beginning and 55.8MB in the end (delta: 624.7kB). 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: 240]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 239, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L234] float x = 0.0f; [L235] float y = 0.0f; [L236] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=0, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, ix=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=2147483647, ix=0, iy=2147483646, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=0, \old(y)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=0, hy=2147483647, ix=0, iy=2147483646, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L236] RET, EXPR __ieee754_atan2f(y, x) [L236] float res = __ieee754_atan2f(y, x); [L239] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, res == 0.0f && __signbit_float(res) == 0=0, tiny_atan2=1/1000000000000000000000000000000, x=0, y=0, zero_atan2=0] [L239] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L240] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, iy = hy & 0x7fffffff=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000, x=0, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 492 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 323 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 25 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2022-07-22 14:29:10,873 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/float_req_bl_0681b.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 59a805f7b1f66e1cd00f55de4439c43d154527529f8b973c97448a204b217c8d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:29:12,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:29:12,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:29:12,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:29:12,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:29:12,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:29:12,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:29:12,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:29:12,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:29:12,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:29:12,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:29:12,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:29:12,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:29:12,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:29:12,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:29:12,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:29:12,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:29:12,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:29:12,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:29:12,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:29:12,668 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:29:12,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:29:12,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:29:12,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:29:12,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:29:12,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:29:12,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:29:12,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:29:12,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:29:12,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:29:12,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:29:12,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:29:12,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:29:12,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:29:12,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:29:12,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:29:12,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:29:12,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:29:12,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:29:12,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:29:12,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:29:12,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:29:12,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 14:29:12,704 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:29:12,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:29:12,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:29:12,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:29:12,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:29:12,706 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:29:12,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:29:12,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:29:12,707 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:29:12,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:29:12,707 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:29:12,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:29:12,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:29:12,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:29:12,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:29:12,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:29:12,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 14:29:12,708 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 14:29:12,708 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 14:29:12,709 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:29:12,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:29:12,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:29:12,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:29:12,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:29:12,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:29:12,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:29:12,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:29:12,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:29:12,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:29:12,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:29:12,710 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 14:29:12,711 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 14:29:12,711 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:29:12,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:29:12,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:29:12,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 14:29:12,711 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59a805f7b1f66e1cd00f55de4439c43d154527529f8b973c97448a204b217c8d [2022-07-22 14:29:12,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:29:12,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:29:12,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:29:12,959 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:29:12,959 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:29:12,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0681b.c [2022-07-22 14:29:13,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2dee794f/95f0b8005cc44cfa80f29cb7c36e1326/FLAG247f5a485 [2022-07-22 14:29:13,432 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:29:13,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0681b.c [2022-07-22 14:29:13,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2dee794f/95f0b8005cc44cfa80f29cb7c36e1326/FLAG247f5a485 [2022-07-22 14:29:13,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2dee794f/95f0b8005cc44cfa80f29cb7c36e1326 [2022-07-22 14:29:13,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:29:13,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:29:13,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:29:13,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:29:13,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:29:13,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:29:13" (1/1) ... [2022-07-22 14:29:13,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2856f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:13, skipping insertion in model container [2022-07-22 14:29:13,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:29:13" (1/1) ... [2022-07-22 14:29:13,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:29:13,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:29:13,988 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/float_req_bl_0681b.c[5432,5445] [2022-07-22 14:29:13,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:29:14,000 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:29:14,108 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/float_req_bl_0681b.c[5432,5445] [2022-07-22 14:29:14,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:29:14,143 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:29:14,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14 WrapperNode [2022-07-22 14:29:14,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:29:14,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:29:14,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:29:14,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:29:14,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,241 INFO L137 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 240 [2022-07-22 14:29:14,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:29:14,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:29:14,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:29:14,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:29:14,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:29:14,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:29:14,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:29:14,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:29:14,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (1/1) ... [2022-07-22 14:29:14,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:29:14,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:29:14,370 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) [2022-07-22 14:29:14,454 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 [2022-07-22 14:29:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:29:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-22 14:29:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 14:29:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 14:29:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-22 14:29:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-07-22 14:29:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-07-22 14:29:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 14:29:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:29:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:29:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-22 14:29:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2022-07-22 14:29:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2022-07-22 14:29:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 14:29:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 14:29:14,595 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:29:14,608 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:29:25,885 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:29:25,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:29:25,891 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-22 14:29:25,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:25 BoogieIcfgContainer [2022-07-22 14:29:25,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:29:25,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:29:25,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:29:25,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:29:25,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:29:13" (1/3) ... [2022-07-22 14:29:25,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4134e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:29:25, skipping insertion in model container [2022-07-22 14:29:25,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:29:14" (2/3) ... [2022-07-22 14:29:25,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4134e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:29:25, skipping insertion in model container [2022-07-22 14:29:25,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:25" (3/3) ... [2022-07-22 14:29:25,898 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681b.c [2022-07-22 14:29:25,908 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:29:25,909 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:29:25,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:29:25,946 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77898596, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@ffa485 [2022-07-22 14:29:25,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:29:25,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 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) [2022-07-22 14:29:25,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 14:29:25,954 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:25,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:25,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:25,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:25,958 INFO L85 PathProgramCache]: Analyzing trace with hash 921619847, now seen corresponding path program 1 times [2022-07-22 14:29:25,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:25,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845363949] [2022-07-22 14:29:25,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:25,967 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:25,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:25,970 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) [2022-07-22 14:29:25,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 14:29:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:26,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 14:29:26,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:26,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:26,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:26,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845363949] [2022-07-22 14:29:26,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845363949] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:26,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:26,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 14:29:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761617256] [2022-07-22 14:29:26,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:26,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 14:29:26,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:26,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 14:29:26,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 14:29:26,752 INFO L87 Difference]: Start difference. First operand has 95 states, 87 states have (on average 1.6551724137931034) internal successors, (144), 88 states have internal predecessors, (144), 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) [2022-07-22 14:29:26,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:26,774 INFO L93 Difference]: Finished difference Result 188 states and 306 transitions. [2022-07-22 14:29:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 14:29:26,776 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 [2022-07-22 14:29:26,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:26,781 INFO L225 Difference]: With dead ends: 188 [2022-07-22 14:29:26,781 INFO L226 Difference]: Without dead ends: 92 [2022-07-22 14:29:26,783 INFO L412 NwaCegarLoop]: 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 [2022-07-22 14:29:26,786 INFO L413 NwaCegarLoop]: 135 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, 135 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 [2022-07-22 14:29:26,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:29:26,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-22 14:29:26,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-07-22 14:29:26,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 85 states have internal predecessors, (124), 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) [2022-07-22 14:29:26,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 132 transitions. [2022-07-22 14:29:26,813 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 132 transitions. Word has length 11 [2022-07-22 14:29:26,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:26,813 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 132 transitions. [2022-07-22 14:29:26,813 INFO L496 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) [2022-07-22 14:29:26,813 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 132 transitions. [2022-07-22 14:29:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 14:29:26,814 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:26,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:26,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:27,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:27,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:27,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1792690814, now seen corresponding path program 1 times [2022-07-22 14:29:27,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:27,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986958489] [2022-07-22 14:29:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:27,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:27,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:27,031 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) [2022-07-22 14:29:27,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 14:29:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:27,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-22 14:29:27,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:28,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 14:29:28,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2022-07-22 14:29:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:28,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:28,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:28,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986958489] [2022-07-22 14:29:28,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986958489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:28,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:28,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 14:29:28,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505032789] [2022-07-22 14:29:28,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:28,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 14:29:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:28,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 14:29:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 14:29:28,927 INFO L87 Difference]: Start difference. First operand 92 states and 132 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-07-22 14:29:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:29,542 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2022-07-22 14:29:29,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 14:29:29,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 [2022-07-22 14:29:29,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:29,583 INFO L225 Difference]: With dead ends: 101 [2022-07-22 14:29:29,583 INFO L226 Difference]: Without dead ends: 92 [2022-07-22 14:29:29,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-22 14:29:29,584 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 2 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:29,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 688 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 68 Unchecked, 0.5s Time] [2022-07-22 14:29:29,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-22 14:29:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-07-22 14:29:29,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 85 states have internal predecessors, (123), 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) [2022-07-22 14:29:29,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2022-07-22 14:29:29,591 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 13 [2022-07-22 14:29:29,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:29,592 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2022-07-22 14:29:29,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-07-22 14:29:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2022-07-22 14:29:29,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 14:29:29,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:29,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:29,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:29,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:29,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1416605106, now seen corresponding path program 1 times [2022-07-22 14:29:29,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:29,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937755173] [2022-07-22 14:29:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:29,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:29,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:29,815 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) [2022-07-22 14:29:29,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 14:29:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:30,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 14:29:30,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:30,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:30,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:30,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:30,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937755173] [2022-07-22 14:29:30,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937755173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:30,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:30,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:29:30,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218281264] [2022-07-22 14:29:30,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:30,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:29:30,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:30,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:29:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:29:30,907 INFO L87 Difference]: Start difference. First operand 92 states and 131 transitions. Second operand has 5 states, 5 states have (on average 3.6) 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) [2022-07-22 14:29:33,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:33,129 INFO L93 Difference]: Finished difference Result 104 states and 142 transitions. [2022-07-22 14:29:33,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 14:29:33,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) 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) Word has length 18 [2022-07-22 14:29:33,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:33,130 INFO L225 Difference]: With dead ends: 104 [2022-07-22 14:29:33,130 INFO L226 Difference]: Without dead ends: 101 [2022-07-22 14:29:33,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 14:29:33,131 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 93 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:33,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 398 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-22 14:29:33,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-07-22 14:29:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 94. [2022-07-22 14:29:33,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4367816091954022) internal successors, (125), 87 states have internal predecessors, (125), 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) [2022-07-22 14:29:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 133 transitions. [2022-07-22 14:29:33,139 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 133 transitions. Word has length 18 [2022-07-22 14:29:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:33,140 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 133 transitions. [2022-07-22 14:29:33,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) 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) [2022-07-22 14:29:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 133 transitions. [2022-07-22 14:29:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 14:29:33,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:33,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:33,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:33,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:33,343 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:33,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:33,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1552877836, now seen corresponding path program 1 times [2022-07-22 14:29:33,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:33,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145671556] [2022-07-22 14:29:33,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:33,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:33,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:33,350 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:29:33,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 14:29:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:34,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 14:29:34,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:34,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:34,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:34,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:34,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145671556] [2022-07-22 14:29:34,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145671556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:34,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:34,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 14:29:34,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695411531] [2022-07-22 14:29:34,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:34,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 14:29:34,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:34,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 14:29:34,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 14:29:34,564 INFO L87 Difference]: Start difference. First operand 94 states and 133 transitions. Second operand has 5 states, 5 states have (on average 3.6) 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) [2022-07-22 14:29:35,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:35,452 INFO L93 Difference]: Finished difference Result 176 states and 247 transitions. [2022-07-22 14:29:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 14:29:35,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) 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) Word has length 18 [2022-07-22 14:29:35,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:35,490 INFO L225 Difference]: With dead ends: 176 [2022-07-22 14:29:35,490 INFO L226 Difference]: Without dead ends: 103 [2022-07-22 14:29:35,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 14:29:35,491 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 15 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:35,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 507 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 10 Unchecked, 0.7s Time] [2022-07-22 14:29:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-22 14:29:35,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-07-22 14:29:35,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 87 states have internal predecessors, (124), 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) [2022-07-22 14:29:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2022-07-22 14:29:35,505 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 18 [2022-07-22 14:29:35,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:35,506 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2022-07-22 14:29:35,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) 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) [2022-07-22 14:29:35,506 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2022-07-22 14:29:35,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 14:29:35,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:35,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:35,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:35,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:35,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:35,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:35,724 INFO L85 PathProgramCache]: Analyzing trace with hash 878598442, now seen corresponding path program 1 times [2022-07-22 14:29:35,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:35,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009470255] [2022-07-22 14:29:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:35,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:35,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:35,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:29:35,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 14:29:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:36,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-22 14:29:36,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:36,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 14:29:36,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-07-22 14:29:37,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:37,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:37,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:37,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009470255] [2022-07-22 14:29:37,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009470255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:37,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:37,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 14:29:37,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102459520] [2022-07-22 14:29:37,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:37,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 14:29:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:37,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 14:29:37,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-22 14:29:37,829 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-07-22 14:29:38,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:38,853 INFO L93 Difference]: Finished difference Result 181 states and 254 transitions. [2022-07-22 14:29:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 14:29:38,893 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 19 [2022-07-22 14:29:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:38,893 INFO L225 Difference]: With dead ends: 181 [2022-07-22 14:29:38,893 INFO L226 Difference]: Without dead ends: 103 [2022-07-22 14:29:38,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-22 14:29:38,894 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 13 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:38,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 647 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 42 Unchecked, 0.8s Time] [2022-07-22 14:29:38,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-22 14:29:38,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-07-22 14:29:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 88 states have internal predecessors, (124), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-22 14:29:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 130 transitions. [2022-07-22 14:29:38,910 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 130 transitions. Word has length 19 [2022-07-22 14:29:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:38,911 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 130 transitions. [2022-07-22 14:29:38,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2022-07-22 14:29:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 130 transitions. [2022-07-22 14:29:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 14:29:38,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:38,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:38,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:39,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:39,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:39,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:39,116 INFO L85 PathProgramCache]: Analyzing trace with hash 69251816, now seen corresponding path program 1 times [2022-07-22 14:29:39,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:39,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406666304] [2022-07-22 14:29:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:39,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:39,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:39,118 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:29:39,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 14:29:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:39,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-22 14:29:39,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:40,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-22 14:29:40,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-07-22 14:29:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:40,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:40,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:40,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406666304] [2022-07-22 14:29:40,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406666304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:40,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:40,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 14:29:40,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274072378] [2022-07-22 14:29:40,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:40,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 14:29:40,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 14:29:40,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 14:29:40,962 INFO L87 Difference]: Start difference. First operand 94 states and 130 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-07-22 14:29:41,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:41,345 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2022-07-22 14:29:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 14:29:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2022-07-22 14:29:41,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:41,345 INFO L225 Difference]: With dead ends: 103 [2022-07-22 14:29:41,345 INFO L226 Difference]: Without dead ends: 23 [2022-07-22 14:29:41,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 14:29:41,346 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:41,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 59 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 17 Unchecked, 0.1s Time] [2022-07-22 14:29:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-22 14:29:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-22 14:29:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 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) [2022-07-22 14:29:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2022-07-22 14:29:41,354 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19 [2022-07-22 14:29:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:41,354 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2022-07-22 14:29:41,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-07-22 14:29:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2022-07-22 14:29:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-22 14:29:41,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:29:41,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:41,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:41,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:41,557 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:29:41,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:29:41,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1946401287, now seen corresponding path program 1 times [2022-07-22 14:29:41,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:29:41,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667526896] [2022-07-22 14:29:41,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:29:41,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:29:41,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:29:41,559 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 14:29:41,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 14:29:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:29:42,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 14:29:42,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:29:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:29:43,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:29:43,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:29:43,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667526896] [2022-07-22 14:29:43,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667526896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:29:43,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:29:43,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 14:29:43,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633987311] [2022-07-22 14:29:43,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:29:43,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 14:29:43,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:29:43,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 14:29:43,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 14:29:43,118 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2022-07-22 14:29:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:29:43,852 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2022-07-22 14:29:43,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 14:29:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 22 [2022-07-22 14:29:43,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:29:43,853 INFO L225 Difference]: With dead ends: 23 [2022-07-22 14:29:43,853 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 14:29:43,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-07-22 14:29:43,854 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 23 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 14:29:43,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 84 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 14:29:43,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 14:29:43,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 14:29:43,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 14:29:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 14:29:43,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-07-22 14:29:43,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:29:43,855 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 14:29:43,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2022-07-22 14:29:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 14:29:43,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 14:29:43,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:29:43,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-22 14:29:44,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:29:44,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L902 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L902 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 14:29:45,056 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L895 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (and |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= |ULTIMATE.start___ieee754_atan2f_#res#1| (_ +zero 8 24))) [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L220-1(lines 220 224) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L895 garLoopResultBuilder]: At program point L220-2(lines 220 224) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short42#1| (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= |ULTIMATE.start___ieee754_atan2f_#res#1| (_ +zero 8 24))) [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L220-3(lines 220 224) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L895 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-22 14:29:45,057 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 239 242) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L895 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~x#1|) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|)) [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L240(line 240) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L895 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L895 garLoopResultBuilder]: At program point L226(lines 217 227) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~1#1|)) (_ +zero 8 24)) |ULTIMATE.start_main_#t~short42#1| (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|) (= |ULTIMATE.start___ieee754_atan2f_#res#1| (_ +zero 8 24))) [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2022-07-22 14:29:45,058 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L902 garLoopResultBuilder]: At program point L244(lines 229 245) the Hoare annotation is: true [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L895 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_atan2f_~hx~1#1| .cse0)))) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)) (= (bvand (_ bv2147483647 32) .cse1) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|)))) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~y#1|)) [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 14:29:45,059 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 240) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L895 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L902 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L902 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L902 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2022-07-22 14:29:45,060 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-22 14:29:45,061 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2022-07-22 14:29:45,061 INFO L899 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2022-07-22 14:29:45,061 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2022-07-22 14:29:45,061 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2022-07-22 14:29:45,061 INFO L899 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2022-07-22 14:29:45,063 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-22 14:29:45,064 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:29:45,075 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,076 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,076 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,076 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,076 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,076 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,076 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,078 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:29:45 BoogieIcfgContainer [2022-07-22 14:29:45,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:29:45,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:29:45,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:29:45,080 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:29:45,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:29:25" (3/4) ... [2022-07-22 14:29:45,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 14:29:45,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2022-07-22 14:29:45,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2022-07-22 14:29:45,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-07-22 14:29:45,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-07-22 14:29:45,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-22 14:29:45,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 14:29:45,108 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10][0bv32]) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32]) == ix)) && ~Pluszero~LONGDOUBLE() == y [2022-07-22 14:29:45,109 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux && ~Pluszero~LONGDOUBLE() == y) && \result == ~Pluszero~LONGDOUBLE() [2022-07-22 14:29:45,110 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((x == ~Pluszero~LONGDOUBLE() && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == y) && \result == ~Pluszero~LONGDOUBLE() [2022-07-22 14:29:45,111 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((x == ~Pluszero~LONGDOUBLE() && \result == 0bv32) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && res == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == y) && \result == ~Pluszero~LONGDOUBLE() [2022-07-22 14:29:45,129 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 14:29:45,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:29:45,130 INFO L158 Benchmark]: Toolchain (without parser) took 31294.73ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 43.4MB in the beginning and 32.9MB in the end (delta: 10.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2022-07-22 14:29:45,130 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:29:45,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.02ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 43.5MB in the end (delta: -404.1kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 14:29:45,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.58ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 41.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:29:45,131 INFO L158 Benchmark]: Boogie Preprocessor took 66.32ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 38.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 14:29:45,131 INFO L158 Benchmark]: RCFGBuilder took 11583.48ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 38.1MB in the beginning and 49.6MB in the end (delta: -11.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-07-22 14:29:45,131 INFO L158 Benchmark]: TraceAbstraction took 19185.56ms. Allocated memory is still 83.9MB. Free memory was 49.2MB in the beginning and 38.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-07-22 14:29:45,131 INFO L158 Benchmark]: Witness Printer took 49.45ms. Allocated memory is still 83.9MB. Free memory was 38.5MB in the beginning and 32.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 14:29:45,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.02ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 43.5MB in the end (delta: -404.1kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.58ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 41.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.32ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 38.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 11583.48ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 38.1MB in the beginning and 49.6MB in the end (delta: -11.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 19185.56ms. Allocated memory is still 83.9MB. Free memory was 49.2MB in the beginning and 38.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 49.45ms. Allocated memory is still 83.9MB. Free memory was 38.5MB in the beginning and 32.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 240]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 159 mSDsluCounter, 2518 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 137 IncrementalHoareTripleChecker+Unchecked, 1851 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 667 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 44 PreInvPairs, 50 NumberOfFragments, 133 HoareAnnotationTreeSize, 44 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 214 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 113 ConstructedInterpolants, 19 QuantifiedInterpolants, 931 SizeOfPredicates, 53 NumberOfNonLiveVariables, 835 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: ((((((x == ~Pluszero~LONGDOUBLE() && \result == 0bv32) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && res == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == y) && \result == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x && ~Pluszero~LONGDOUBLE() == y - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: (aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux && ~Pluszero~LONGDOUBLE() == y) && \result == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2022-07-22 14:29:45,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,140 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,141 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10,QUANTIFIED] [2022-07-22 14:29:45,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-22 14:29:45,142 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_10][0bv32]) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32][22:0]) == ~Pluszero~LONGDOUBLE() && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_6][0bv32]) == ix)) && ~Pluszero~LONGDOUBLE() == y - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: ((((x == ~Pluszero~LONGDOUBLE() && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == y) && \result == ~Pluszero~LONGDOUBLE() RESULT: Ultimate proved your program to be correct! [2022-07-22 14:29:45,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE