./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0460.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0460.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 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:30:03,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:30:03,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:30:03,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:30:03,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:30:03,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:30:03,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:30:03,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:30:03,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:30:03,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:30:03,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:30:03,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:30:03,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:30:03,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:30:03,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:30:03,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:30:03,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:30:03,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:30:03,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:30:03,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:30:03,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:30:03,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:30:03,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:30:03,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:30:03,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:30:03,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:30:03,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:30:03,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:30:03,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:30:03,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:30:03,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:30:03,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:30:03,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:30:03,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:30:03,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:30:03,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:30:03,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:30:03,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:30:03,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:30:03,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:30:03,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:30:03,471 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:30:03,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:30:03,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:30:03,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:30:03,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:30:03,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:30:03,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:30:03,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:30:03,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:30:03,500 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:30:03,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:30:03,501 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:30:03,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:30:03,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:30:03,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:30:03,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:30:03,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:30:03,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:30:03,502 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:30:03,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:30:03,502 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:30:03,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:30:03,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:30:03,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:30:03,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:30:03,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:30:03,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:30:03,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:30:03,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:30:03,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:30:03,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:30:03,505 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:30:03,505 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:30:03,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:30:03,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 [2022-02-20 16:30:03,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:30:03,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:30:03,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:30:03,707 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:30:03,707 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:30:03,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2022-02-20 16:30:03,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e113ad912/bb6b9dd401bb4956a94847ce9c990f4f/FLAGddd48082b [2022-02-20 16:30:04,171 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:30:04,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2022-02-20 16:30:04,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e113ad912/bb6b9dd401bb4956a94847ce9c990f4f/FLAGddd48082b [2022-02-20 16:30:04,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e113ad912/bb6b9dd401bb4956a94847ce9c990f4f [2022-02-20 16:30:04,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:30:04,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:30:04,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:30:04,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:30:04,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:30:04,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76177b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04, skipping insertion in model container [2022-02-20 16:30:04,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:30:04,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:30:04,457 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/double_req_bl_0460.c[5763,5776] [2022-02-20 16:30:04,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:30:04,474 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:30:04,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2022-02-20 16:30:04,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:30:04,514 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:30:04,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04 WrapperNode [2022-02-20 16:30:04,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:30:04,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:30:04,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:30:04,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:30:04,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,549 INFO L137 Inliner]: procedures = 18, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 146 [2022-02-20 16:30:04,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:30:04,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:30:04,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:30:04,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:30:04,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:30:04,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:30:04,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:30:04,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:30:04,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (1/1) ... [2022-02-20 16:30:04,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:30:04,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:30:04,635 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) [2022-02-20 16:30:04,642 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 [2022-02-20 16:30:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:30:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:30:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:30:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:30:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:30:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2022-02-20 16:30:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2022-02-20 16:30:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-20 16:30:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:30:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:30:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:30:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:30:04,720 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:30:04,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:30:05,332 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:30:05,337 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:30:05,341 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-02-20 16:30:05,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:30:05 BoogieIcfgContainer [2022-02-20 16:30:05,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:30:05,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:30:05,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:30:05,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:30:05,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:30:04" (1/3) ... [2022-02-20 16:30:05,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ce751b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:30:05, skipping insertion in model container [2022-02-20 16:30:05,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:04" (2/3) ... [2022-02-20 16:30:05,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ce751b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:30:05, skipping insertion in model container [2022-02-20 16:30:05,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:30:05" (3/3) ... [2022-02-20 16:30:05,349 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2022-02-20 16:30:05,353 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:30:05,353 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:30:05,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:30:05,391 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:30:05,391 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:30:05,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 75 states have internal predecessors, (125), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:05,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-02-20 16:30:05,423 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:30:05,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:30:05,425 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:30:05,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:30:05,432 INFO L85 PathProgramCache]: Analyzing trace with hash 837529521, now seen corresponding path program 1 times [2022-02-20 16:30:05,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:30:05,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999838016] [2022-02-20 16:30:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:30:05,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:30:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:30:05,582 INFO L290 TraceCheckUtils]: 0: Hoare triple {82#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(21, 2);call #Ultimate.allocInit(12, 3);~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-300;~one_acos~0 := 1.0;~pi~0 := 3.141592653589793;~pio2_hi_acos~0 := 1.5707963267948966;~pio2_lo_acos~0 := 6.123233995736766E-17;~pS0_acos~0 := 0.16666666666666666;~pS1_acos~0 := ~someUnaryDOUBLEoperation(0.3255658186224009);~pS2_acos~0 := 0.20121253213486293;~pS3_acos~0 := ~someUnaryDOUBLEoperation(0.04005553450067941);~pS4_acos~0 := 7.915349942898145E-4;~pS5_acos~0 := 3.479331075960212E-5;~qS1_acos~0 := ~someUnaryDOUBLEoperation(2.403394911734414);~qS2_acos~0 := 2.0209457602335057;~qS3_acos~0 := ~someUnaryDOUBLEoperation(0.6882839716054533);~qS4_acos~0 := 0.07703815055590194; {82#true} is VALID [2022-02-20 16:30:05,583 INFO L290 TraceCheckUtils]: 1: Hoare triple {82#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~ret16#1, main_#t~ret17#1, main_~res~0#1, main_~x~0#1;main_~x~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; {82#true} is VALID [2022-02-20 16:30:05,585 INFO L290 TraceCheckUtils]: 2: Hoare triple {82#true} assume ~someBinaryDOUBLEComparisonOperation(main_~x~0#1, ~someUnaryDOUBLEoperation(1.0)) || ~someBinaryDOUBLEComparisonOperation(main_~x~0#1, 1.0);assume { :begin_inline___ieee754_acos } true;__ieee754_acos_#in~x#1 := main_~x~0#1;havoc __ieee754_acos_#res#1;havoc __ieee754_acos_#t~mem9#1, __ieee754_acos_~#gh_u~0#1.base, __ieee754_acos_~#gh_u~0#1.offset, __ieee754_acos_#t~mem11#1, __ieee754_acos_~#gl_u~0#1.base, __ieee754_acos_~#gl_u~0#1.offset, __ieee754_acos_~lx~0#1, __ieee754_acos_#t~ret12#1, __ieee754_acos_#t~ret13#1, __ieee754_acos_#t~mem14#1, __ieee754_acos_~#sl_u~0#1.base, __ieee754_acos_~#sl_u~0#1.offset, __ieee754_acos_~x#1, __ieee754_acos_~z~1#1, __ieee754_acos_~p~0#1, __ieee754_acos_~q~1#1, __ieee754_acos_~r~1#1, __ieee754_acos_~w~0#1, __ieee754_acos_~s~0#1, __ieee754_acos_~c~0#1, __ieee754_acos_~df~0#1, __ieee754_acos_~hx~0#1, __ieee754_acos_~ix~0#1, __ieee754_acos_#t~nondet10#1;__ieee754_acos_~x#1 := __ieee754_acos_#in~x#1;havoc __ieee754_acos_~z~1#1;havoc __ieee754_acos_~p~0#1;havoc __ieee754_acos_~q~1#1;havoc __ieee754_acos_~r~1#1;havoc __ieee754_acos_~w~0#1;havoc __ieee754_acos_~s~0#1;havoc __ieee754_acos_~c~0#1;havoc __ieee754_acos_~df~0#1;havoc __ieee754_acos_~hx~0#1;havoc __ieee754_acos_~ix~0#1; {82#true} is VALID [2022-02-20 16:30:05,586 INFO L290 TraceCheckUtils]: 3: Hoare triple {82#true} assume !true; {83#false} is VALID [2022-02-20 16:30:05,586 INFO L290 TraceCheckUtils]: 4: Hoare triple {83#false} assume 0 == __ieee754_acos_~hx~0#1;__ieee754_acos_~ix~0#1 := 0; {83#false} is VALID [2022-02-20 16:30:05,587 INFO L290 TraceCheckUtils]: 5: Hoare triple {83#false} assume __ieee754_acos_~ix~0#1 >= 1072693248;havoc __ieee754_acos_~lx~0#1; {83#false} is VALID [2022-02-20 16:30:05,587 INFO L290 TraceCheckUtils]: 6: Hoare triple {83#false} assume !true; {83#false} is VALID [2022-02-20 16:30:05,588 INFO L290 TraceCheckUtils]: 7: Hoare triple {83#false} assume !(0 == (if (1 == __ieee754_acos_~ix~0#1 - 1072693248 || 0 == __ieee754_acos_~ix~0#1 - 1072693248) && 0 == __ieee754_acos_~lx~0#1 then __ieee754_acos_~ix~0#1 - 1072693248 else (if 0 == __ieee754_acos_~ix~0#1 - 1072693248 && (1 == __ieee754_acos_~lx~0#1 || 0 == __ieee754_acos_~lx~0#1) then __ieee754_acos_~lx~0#1 else (if (1 == __ieee754_acos_~ix~0#1 - 1072693248 && (1 == __ieee754_acos_~lx~0#1 || 0 == __ieee754_acos_~lx~0#1)) || ((1 == __ieee754_acos_~ix~0#1 - 1072693248 || 0 == __ieee754_acos_~ix~0#1 - 1072693248) && 1 == __ieee754_acos_~lx~0#1) then 1 else ~bitwiseOr(__ieee754_acos_~ix~0#1 - 1072693248, __ieee754_acos_~lx~0#1)))) % 4294967296);__ieee754_acos_#res#1 := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~x#1, __ieee754_acos_~x#1), ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~x#1, __ieee754_acos_~x#1)); {83#false} is VALID [2022-02-20 16:30:05,588 INFO L290 TraceCheckUtils]: 8: Hoare triple {83#false} main_#t~ret16#1 := __ieee754_acos_#res#1;assume { :end_inline___ieee754_acos } true;main_~res~0#1 := main_#t~ret16#1;havoc main_#t~ret16#1;assume { :begin_inline_isnan_double } true;isnan_double_#in~x#1 := main_~res~0#1;havoc isnan_double_#res#1;havoc isnan_double_~x#1;isnan_double_~x#1 := isnan_double_#in~x#1;isnan_double_#res#1 := (if ~someBinaryDOUBLEComparisonOperation(isnan_double_~x#1, isnan_double_~x#1) then 1 else 0); {83#false} is VALID [2022-02-20 16:30:05,588 INFO L290 TraceCheckUtils]: 9: Hoare triple {83#false} main_#t~ret17#1 := isnan_double_#res#1;assume { :end_inline_isnan_double } true;assume -2147483648 <= main_#t~ret17#1 && main_#t~ret17#1 <= 2147483647; {83#false} is VALID [2022-02-20 16:30:05,589 INFO L290 TraceCheckUtils]: 10: Hoare triple {83#false} assume 0 == main_#t~ret17#1;havoc main_#t~ret17#1; {83#false} is VALID [2022-02-20 16:30:05,589 INFO L290 TraceCheckUtils]: 11: Hoare triple {83#false} assume !false; {83#false} is VALID [2022-02-20 16:30:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:30:05,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:30:05,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999838016] [2022-02-20 16:30:05,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999838016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:30:05,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:30:05,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:30:05,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175072080] [2022-02-20 16:30:05,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:30:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-02-20 16:30:05,600 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:30:05,602 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:05,629 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:30:05,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:30:05,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:30:05,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:30:05,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:30:05,654 INFO L87 Difference]: Start difference. First operand has 79 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 75 states have internal predecessors, (125), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:05,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:30:05,802 INFO L93 Difference]: Finished difference Result 155 states and 256 transitions. [2022-02-20 16:30:05,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:30:05,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-02-20 16:30:05,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:30:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 256 transitions. [2022-02-20 16:30:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:05,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 256 transitions. [2022-02-20 16:30:05,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 256 transitions. [2022-02-20 16:30:06,040 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 256 edges. 256 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:30:06,051 INFO L225 Difference]: With dead ends: 155 [2022-02-20 16:30:06,052 INFO L226 Difference]: Without dead ends: 75 [2022-02-20 16:30:06,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:30:06,059 INFO L933 BasicCegarLoop]: 109 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, 109 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 [2022-02-20 16:30:06,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:30:06,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-02-20 16:30:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-02-20 16:30:06,089 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:30:06,091 INFO L82 GeneralOperation]: Start isEquivalent. First operand 75 states. Second operand has 75 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:06,094 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand has 75 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:06,095 INFO L87 Difference]: Start difference. First operand 75 states. Second operand has 75 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:30:06,101 INFO L93 Difference]: Finished difference Result 75 states and 104 transitions. [2022-02-20 16:30:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2022-02-20 16:30:06,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:30:06,103 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:30:06,104 INFO L74 IsIncluded]: Start isIncluded. First operand has 75 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 75 states. [2022-02-20 16:30:06,104 INFO L87 Difference]: Start difference. First operand has 75 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 75 states. [2022-02-20 16:30:06,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:30:06,119 INFO L93 Difference]: Finished difference Result 75 states and 104 transitions. [2022-02-20 16:30:06,119 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2022-02-20 16:30:06,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:30:06,125 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:30:06,125 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:30:06,125 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:30:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 71 states have (on average 1.408450704225352) internal successors, (100), 71 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:06,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2022-02-20 16:30:06,129 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 12 [2022-02-20 16:30:06,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:30:06,130 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2022-02-20 16:30:06,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:06,132 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2022-02-20 16:30:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:30:06,134 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:30:06,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:30:06,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:30:06,136 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:30:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:30:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2131075422, now seen corresponding path program 1 times [2022-02-20 16:30:06,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:30:06,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457690890] [2022-02-20 16:30:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:30:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:30:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:30:06,211 INFO L290 TraceCheckUtils]: 0: Hoare triple {510#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(21, 2);call #Ultimate.allocInit(12, 3);~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-300;~one_acos~0 := 1.0;~pi~0 := 3.141592653589793;~pio2_hi_acos~0 := 1.5707963267948966;~pio2_lo_acos~0 := 6.123233995736766E-17;~pS0_acos~0 := 0.16666666666666666;~pS1_acos~0 := ~someUnaryDOUBLEoperation(0.3255658186224009);~pS2_acos~0 := 0.20121253213486293;~pS3_acos~0 := ~someUnaryDOUBLEoperation(0.04005553450067941);~pS4_acos~0 := 7.915349942898145E-4;~pS5_acos~0 := 3.479331075960212E-5;~qS1_acos~0 := ~someUnaryDOUBLEoperation(2.403394911734414);~qS2_acos~0 := 2.0209457602335057;~qS3_acos~0 := ~someUnaryDOUBLEoperation(0.6882839716054533);~qS4_acos~0 := 0.07703815055590194; {510#true} is VALID [2022-02-20 16:30:06,211 INFO L290 TraceCheckUtils]: 1: Hoare triple {510#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~ret16#1, main_#t~ret17#1, main_~res~0#1, main_~x~0#1;main_~x~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1; {510#true} is VALID [2022-02-20 16:30:06,211 INFO L290 TraceCheckUtils]: 2: Hoare triple {510#true} assume ~someBinaryDOUBLEComparisonOperation(main_~x~0#1, ~someUnaryDOUBLEoperation(1.0)) || ~someBinaryDOUBLEComparisonOperation(main_~x~0#1, 1.0);assume { :begin_inline___ieee754_acos } true;__ieee754_acos_#in~x#1 := main_~x~0#1;havoc __ieee754_acos_#res#1;havoc __ieee754_acos_#t~mem9#1, __ieee754_acos_~#gh_u~0#1.base, __ieee754_acos_~#gh_u~0#1.offset, __ieee754_acos_#t~mem11#1, __ieee754_acos_~#gl_u~0#1.base, __ieee754_acos_~#gl_u~0#1.offset, __ieee754_acos_~lx~0#1, __ieee754_acos_#t~ret12#1, __ieee754_acos_#t~ret13#1, __ieee754_acos_#t~mem14#1, __ieee754_acos_~#sl_u~0#1.base, __ieee754_acos_~#sl_u~0#1.offset, __ieee754_acos_~x#1, __ieee754_acos_~z~1#1, __ieee754_acos_~p~0#1, __ieee754_acos_~q~1#1, __ieee754_acos_~r~1#1, __ieee754_acos_~w~0#1, __ieee754_acos_~s~0#1, __ieee754_acos_~c~0#1, __ieee754_acos_~df~0#1, __ieee754_acos_~hx~0#1, __ieee754_acos_~ix~0#1, __ieee754_acos_#t~nondet10#1;__ieee754_acos_~x#1 := __ieee754_acos_#in~x#1;havoc __ieee754_acos_~z~1#1;havoc __ieee754_acos_~p~0#1;havoc __ieee754_acos_~q~1#1;havoc __ieee754_acos_~r~1#1;havoc __ieee754_acos_~w~0#1;havoc __ieee754_acos_~s~0#1;havoc __ieee754_acos_~c~0#1;havoc __ieee754_acos_~df~0#1;havoc __ieee754_acos_~hx~0#1;havoc __ieee754_acos_~ix~0#1; {510#true} is VALID [2022-02-20 16:30:06,212 INFO L290 TraceCheckUtils]: 3: Hoare triple {510#true} call __ieee754_acos_~#gh_u~0#1.base, __ieee754_acos_~#gh_u~0#1.offset := #Ultimate.allocOnStack(8);call write~real(__ieee754_acos_~x#1, __ieee754_acos_~#gh_u~0#1.base, __ieee754_acos_~#gh_u~0#1.offset, 8);call __ieee754_acos_#t~mem9#1 := read~int(__ieee754_acos_~#gh_u~0#1.base, 4 + __ieee754_acos_~#gh_u~0#1.offset, 4);__ieee754_acos_~hx~0#1 := (if __ieee754_acos_#t~mem9#1 % 4294967296 % 4294967296 <= 2147483647 then __ieee754_acos_#t~mem9#1 % 4294967296 % 4294967296 else __ieee754_acos_#t~mem9#1 % 4294967296 % 4294967296 - 4294967296);havoc __ieee754_acos_#t~mem9#1;call ULTIMATE.dealloc(__ieee754_acos_~#gh_u~0#1.base, __ieee754_acos_~#gh_u~0#1.offset);havoc __ieee754_acos_~#gh_u~0#1.base, __ieee754_acos_~#gh_u~0#1.offset; {510#true} is VALID [2022-02-20 16:30:06,212 INFO L290 TraceCheckUtils]: 4: Hoare triple {510#true} goto; {510#true} is VALID [2022-02-20 16:30:06,212 INFO L290 TraceCheckUtils]: 5: Hoare triple {510#true} assume 0 == __ieee754_acos_~hx~0#1;__ieee754_acos_~ix~0#1 := 0; {512#(= 0 |ULTIMATE.start___ieee754_acos_~ix~0#1|)} is VALID [2022-02-20 16:30:06,213 INFO L290 TraceCheckUtils]: 6: Hoare triple {512#(= 0 |ULTIMATE.start___ieee754_acos_~ix~0#1|)} assume !(__ieee754_acos_~ix~0#1 >= 1072693248); {512#(= 0 |ULTIMATE.start___ieee754_acos_~ix~0#1|)} is VALID [2022-02-20 16:30:06,214 INFO L290 TraceCheckUtils]: 7: Hoare triple {512#(= 0 |ULTIMATE.start___ieee754_acos_~ix~0#1|)} assume __ieee754_acos_~ix~0#1 < 1071644672; {512#(= 0 |ULTIMATE.start___ieee754_acos_~ix~0#1|)} is VALID [2022-02-20 16:30:06,214 INFO L290 TraceCheckUtils]: 8: Hoare triple {512#(= 0 |ULTIMATE.start___ieee754_acos_~ix~0#1|)} assume !(__ieee754_acos_~ix~0#1 <= 1012924416);__ieee754_acos_~z~1#1 := ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~x#1, __ieee754_acos_~x#1);__ieee754_acos_~p~0#1 := ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~someBinaryArithmeticDOUBLEoperation(~pS0_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~someBinaryArithmeticDOUBLEoperation(~pS1_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~someBinaryArithmeticDOUBLEoperation(~pS2_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~someBinaryArithmeticDOUBLEoperation(~pS3_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~someBinaryArithmeticDOUBLEoperation(~pS4_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~pS5_acos~0)))))))))));__ieee754_acos_~q~1#1 := ~someBinaryArithmeticDOUBLEoperation(~one_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~someBinaryArithmeticDOUBLEoperation(~qS1_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~someBinaryArithmeticDOUBLEoperation(~qS2_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~someBinaryArithmeticDOUBLEoperation(~qS3_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~z~1#1, ~qS4_acos~0))))))));__ieee754_acos_~r~1#1 := ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~p~0#1, __ieee754_acos_~q~1#1);__ieee754_acos_#res#1 := ~someBinaryArithmeticDOUBLEoperation(~pio2_hi_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~x#1, ~someBinaryArithmeticDOUBLEoperation(~pio2_lo_acos~0, ~someBinaryArithmeticDOUBLEoperation(__ieee754_acos_~x#1, __ieee754_acos_~r~1#1)))); {511#false} is VALID [2022-02-20 16:30:06,215 INFO L290 TraceCheckUtils]: 9: Hoare triple {511#false} main_#t~ret16#1 := __ieee754_acos_#res#1;assume { :end_inline___ieee754_acos } true;main_~res~0#1 := main_#t~ret16#1;havoc main_#t~ret16#1;assume { :begin_inline_isnan_double } true;isnan_double_#in~x#1 := main_~res~0#1;havoc isnan_double_#res#1;havoc isnan_double_~x#1;isnan_double_~x#1 := isnan_double_#in~x#1;isnan_double_#res#1 := (if ~someBinaryDOUBLEComparisonOperation(isnan_double_~x#1, isnan_double_~x#1) then 1 else 0); {511#false} is VALID [2022-02-20 16:30:06,215 INFO L290 TraceCheckUtils]: 10: Hoare triple {511#false} main_#t~ret17#1 := isnan_double_#res#1;assume { :end_inline_isnan_double } true;assume -2147483648 <= main_#t~ret17#1 && main_#t~ret17#1 <= 2147483647; {511#false} is VALID [2022-02-20 16:30:06,215 INFO L290 TraceCheckUtils]: 11: Hoare triple {511#false} assume 0 == main_#t~ret17#1;havoc main_#t~ret17#1; {511#false} is VALID [2022-02-20 16:30:06,215 INFO L290 TraceCheckUtils]: 12: Hoare triple {511#false} assume !false; {511#false} is VALID [2022-02-20 16:30:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:30:06,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:30:06,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457690890] [2022-02-20 16:30:06,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457690890] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:30:06,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:30:06,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:30:06,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621779972] [2022-02-20 16:30:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:30:06,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2022-02-20 16:30:06,218 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:30:06,218 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-02-20 16:30:06,228 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:30:06,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 16:30:06,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:30:06,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 16:30:06,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 16:30:06,230 INFO L87 Difference]: Start difference. First operand 75 states and 104 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-02-20 16:30:06,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:30:06,377 INFO L93 Difference]: Finished difference Result 146 states and 201 transitions. [2022-02-20 16:30:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 16:30:06,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2022-02-20 16:30:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:30:06,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-02-20 16:30:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2022-02-20 16:30:06,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-02-20 16:30:06,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2022-02-20 16:30:06,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 201 transitions. [2022-02-20 16:30:06,550 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 201 edges. 201 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:30:06,553 INFO L225 Difference]: With dead ends: 146 [2022-02-20 16:30:06,553 INFO L226 Difference]: Without dead ends: 83 [2022-02-20 16:30:06,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 16:30:06,554 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 5 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:30:06,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 193 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:30:06,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-02-20 16:30:06,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2022-02-20 16:30:06,562 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:30:06,563 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand has 78 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:06,563 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand has 78 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:06,563 INFO L87 Difference]: Start difference. First operand 83 states. Second operand has 78 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:06,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:30:06,566 INFO L93 Difference]: Finished difference Result 83 states and 111 transitions. [2022-02-20 16:30:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 111 transitions. [2022-02-20 16:30:06,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:30:06,569 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:30:06,569 INFO L74 IsIncluded]: Start isIncluded. First operand has 78 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 83 states. [2022-02-20 16:30:06,569 INFO L87 Difference]: Start difference. First operand has 78 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 83 states. [2022-02-20 16:30:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:30:06,572 INFO L93 Difference]: Finished difference Result 83 states and 111 transitions. [2022-02-20 16:30:06,574 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 111 transitions. [2022-02-20 16:30:06,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:30:06,574 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:30:06,574 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:30:06,574 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:30:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:06,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 107 transitions. [2022-02-20 16:30:06,579 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 107 transitions. Word has length 13 [2022-02-20 16:30:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:30:06,579 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 107 transitions. [2022-02-20 16:30:06,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2022-02-20 16:30:06,580 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 107 transitions. [2022-02-20 16:30:06,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:30:06,580 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:30:06,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:30:06,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:30:06,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:30:06,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:30:06,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2132922464, now seen corresponding path program 1 times [2022-02-20 16:30:06,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:30:06,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888834798] [2022-02-20 16:30:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:30:06,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:30:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:30:06,635 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:30:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:30:06,666 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:30:06,666 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:30:06,667 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:30:06,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 16:30:06,671 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-20 16:30:06,673 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:30:06,692 WARN L170 areAnnotationChecker]: __ieee754_sqrtENTRY has no Hoare annotation [2022-02-20 16:30:06,692 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:30:06,692 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L25-3 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L25-3 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L225 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L225 has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: __ieee754_sqrtFINAL has no Hoare annotation [2022-02-20 16:30:06,693 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L147-2 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L147-2 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L225-2 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: __ieee754_sqrtEXIT has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: __ieee754_sqrtEXIT has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L147-1 has no Hoare annotation [2022-02-20 16:30:06,694 WARN L170 areAnnotationChecker]: L147-1 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L147-3 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L147-3 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L236 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L188-1 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L194-1 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2022-02-20 16:30:06,695 WARN L170 areAnnotationChecker]: L152-7 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L152-7 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L152-1 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L152-1 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L211 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L196-2 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L196-2 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2022-02-20 16:30:06,696 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L155-2 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L155-2 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L168 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L168 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L152-3 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L152-3 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L215 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L196-1 has no Hoare annotation [2022-02-20 16:30:06,697 WARN L170 areAnnotationChecker]: L196-1 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L196-3 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L45-3 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L155-1 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L155-1 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L155-3 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L155-3 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L169 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L169 has no Hoare annotation [2022-02-20 16:30:06,698 WARN L170 areAnnotationChecker]: L180 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L180 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L152-5 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L152-5 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L230 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L230 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L57-8 has no Hoare annotation [2022-02-20 16:30:06,699 WARN L170 areAnnotationChecker]: L57-8 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L57-2 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L57-2 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L161 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L161 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L188 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L188 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L194 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L194 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L231 has no Hoare annotation [2022-02-20 16:30:06,700 WARN L170 areAnnotationChecker]: L231 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L50-4 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L57-4 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L57-4 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L57-6 has no Hoare annotation [2022-02-20 16:30:06,701 WARN L170 areAnnotationChecker]: L57-6 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L69-3 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L82-2 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L82-2 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L82-2 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L71-2 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L82-3 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L82-3 has no Hoare annotation [2022-02-20 16:30:06,702 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L100 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L87 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L87 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L85-2 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L104 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-02-20 16:30:06,703 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L87-2 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L107 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L107 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L117-2 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L108 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L120-2 has no Hoare annotation [2022-02-20 16:30:06,704 WARN L170 areAnnotationChecker]: L120-2 has no Hoare annotation [2022-02-20 16:30:06,705 WARN L170 areAnnotationChecker]: L90-2 has no Hoare annotation [2022-02-20 16:30:06,705 WARN L170 areAnnotationChecker]: L108-2 has no Hoare annotation [2022-02-20 16:30:06,705 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 16:30:06,705 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 16:30:06,705 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 16:30:06,705 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:30:06,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:30:06 BoogieIcfgContainer [2022-02-20 16:30:06,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:30:06,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:30:06,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:30:06,707 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:30:06,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:30:05" (3/4) ... [2022-02-20 16:30:06,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:30:06,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:30:06,710 INFO L158 Benchmark]: Toolchain (without parser) took 2510.69ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 57.7MB in the beginning and 65.0MB in the end (delta: -7.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-02-20 16:30:06,711 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:30:06,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.04ms. Allocated memory is still 90.2MB. Free memory was 57.6MB in the beginning and 59.2MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:30:06,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.88ms. Allocated memory is still 90.2MB. Free memory was 59.2MB in the beginning and 56.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:30:06,712 INFO L158 Benchmark]: Boogie Preprocessor took 49.06ms. Allocated memory is still 90.2MB. Free memory was 56.7MB in the beginning and 53.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:30:06,712 INFO L158 Benchmark]: RCFGBuilder took 743.57ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 53.9MB in the beginning and 74.6MB in the end (delta: -20.7MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-02-20 16:30:06,713 INFO L158 Benchmark]: TraceAbstraction took 1362.02ms. Allocated memory is still 121.6MB. Free memory was 74.0MB in the beginning and 65.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-02-20 16:30:06,713 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 121.6MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:30:06,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.04ms. Allocated memory is still 90.2MB. Free memory was 57.6MB in the beginning and 59.2MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.88ms. Allocated memory is still 90.2MB. Free memory was 59.2MB in the beginning and 56.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.06ms. Allocated memory is still 90.2MB. Free memory was 56.7MB in the beginning and 53.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 743.57ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 53.9MB in the beginning and 74.6MB in the end (delta: -20.7MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1362.02ms. Allocated memory is still 121.6MB. Free memory was 74.0MB in the beginning and 65.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 121.6MB. Free memory is still 65.0MB. 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: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 215, overapproximation of someUnaryDOUBLEoperation at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 170. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L129-L142] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L223] double x = __VERIFIER_nondet_double(); [L225] COND TRUE x < -1.0 || x > 1.0 [L227] CALL, EXPR __ieee754_acos(x) [L145] double z, p, q, r, w, s, c, df; [L146] __int32_t hx, ix; VAL [\old(x)=4294967299, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967299] [L148] ieee_double_shape_type gh_u; [L149] gh_u.value = (x) [L150] EXPR gh_u.parts.msw [L150] (hx) = gh_u.parts.msw [L152] ix = hx & 0x7fffffff VAL [\old(x)=4294967299, hx=0, ix=0, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967299] [L153] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=4294967299, hx=0, ix=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967299] [L168] COND TRUE ix < 0x3fe00000 VAL [\old(x)=4294967299, hx=0, ix=0, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967299] [L169] COND TRUE ix <= 0x3c600000 [L170] return pio2_hi_acos + pio2_lo_acos; VAL [\old(x)=4294967299, hx=0, ix=0, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967299] [L227] RET, EXPR __ieee754_acos(x) [L227] double res = __ieee754_acos(x); [L230] CALL, EXPR isnan_double(res) [L215] return x != x; VAL [\old(x)=4294967297, \result=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967297] [L230] RET, EXPR isnan_double(res) [L230] COND TRUE !isnan_double(res) [L231] reach_error() VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=4294967297, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 302 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 210 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 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 [2022-02-20 16:30:06,740 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 -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0460.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 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:30:08,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:30:08,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:30:08,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:30:08,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:30:08,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:30:08,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:30:08,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:30:08,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:30:08,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:30:08,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:30:08,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:30:08,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:30:08,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:30:08,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:30:08,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:30:08,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:30:08,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:30:08,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:30:08,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:30:08,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:30:08,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:30:08,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:30:08,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:30:08,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:30:08,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:30:08,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:30:08,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:30:08,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:30:08,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:30:08,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:30:08,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:30:08,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:30:08,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:30:08,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:30:08,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:30:08,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:30:08,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:30:08,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:30:08,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:30:08,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:30:08,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:30:08,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:30:08,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:30:08,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:30:08,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:30:08,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:30:08,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:30:08,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:30:08,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:30:08,704 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:30:08,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:30:08,705 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:30:08,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:30:08,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:30:08,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:30:08,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:30:08,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:30:08,706 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:30:08,706 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:30:08,706 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:30:08,706 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:30:08,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:30:08,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:30:08,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:30:08,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:30:08,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:30:08,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:30:08,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:30:08,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:30:08,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:30:08,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:30:08,708 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:30:08,708 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:30:08,708 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:30:08,708 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:30:08,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:30:08,709 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:30:08,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7 [2022-02-20 16:30:08,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:30:08,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:30:08,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:30:08,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:30:08,968 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:30:08,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2022-02-20 16:30:09,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812bfe0da/c67b2d91a86844c4b467ae8915f48f01/FLAG1b00f8cd1 [2022-02-20 16:30:09,406 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:30:09,407 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2022-02-20 16:30:09,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812bfe0da/c67b2d91a86844c4b467ae8915f48f01/FLAG1b00f8cd1 [2022-02-20 16:30:09,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812bfe0da/c67b2d91a86844c4b467ae8915f48f01 [2022-02-20 16:30:09,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:30:09,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:30:09,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:30:09,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:30:09,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:30:09,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:30:09" (1/1) ... [2022-02-20 16:30:09,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7364b0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:09, skipping insertion in model container [2022-02-20 16:30:09,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:30:09" (1/1) ... [2022-02-20 16:30:09,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:30:09,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:30:10,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2022-02-20 16:30:10,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:30:10,026 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:30:10,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776] [2022-02-20 16:30:10,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:30:10,099 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:30:10,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10 WrapperNode [2022-02-20 16:30:10,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:30:10,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:30:10,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:30:10,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:30:10,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,144 INFO L137 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 134 [2022-02-20 16:30:10,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:30:10,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:30:10,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:30:10,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:30:10,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:30:10,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:30:10,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:30:10,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:30:10,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (1/1) ... [2022-02-20 16:30:10,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:30:10,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:30:10,197 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) [2022-02-20 16:30:10,211 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 [2022-02-20 16:30:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:30:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-02-20 16:30:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-02-20 16:30:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:30:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:30:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2022-02-20 16:30:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2022-02-20 16:30:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:30:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:30:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:30:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:30:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:30:10,344 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:30:10,346 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:30:28,497 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:30:28,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:30:28,506 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-02-20 16:30:28,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:30:28 BoogieIcfgContainer [2022-02-20 16:30:28,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:30:28,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:30:28,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:30:28,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:30:28,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:30:09" (1/3) ... [2022-02-20 16:30:28,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9d2835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:30:28, skipping insertion in model container [2022-02-20 16:30:28,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:30:10" (2/3) ... [2022-02-20 16:30:28,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9d2835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:30:28, skipping insertion in model container [2022-02-20 16:30:28,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:30:28" (3/3) ... [2022-02-20 16:30:28,515 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2022-02-20 16:30:28,519 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:30:28,519 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:30:28,569 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:30:28,576 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:30:28,576 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:30:28,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 68 states have internal predecessors, (110), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-20 16:30:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-02-20 16:30:28,599 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:30:28,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:30:28,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:30:28,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:30:28,608 INFO L85 PathProgramCache]: Analyzing trace with hash 260887967, now seen corresponding path program 1 times [2022-02-20 16:30:28,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:30:28,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547460596] [2022-02-20 16:30:28,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:30:28,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:30:28,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:30:28,620 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) [2022-02-20 16:30:28,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:30:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:30:29,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:30:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:30:29,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:30:29,657 INFO L290 TraceCheckUtils]: 0: Hoare triple {75#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(21bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~one_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~tiny_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300);~one_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~pi~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.141592653589793);~pio2_hi_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.5707963267948966);~pio2_lo_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 6.123233995736766E-17);~pS0_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.16666666666666666);~pS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.3255658186224009));~pS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.20121253213486293);~pS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.04005553450067941));~pS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 7.915349942898145E-4);~pS5_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.479331075960212E-5);~qS1_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 2.403394911734414));~qS2_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 2.0209457602335057);~qS3_acos~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.6882839716054533));~qS4_acos~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.07703815055590194); {75#true} is VALID [2022-02-20 16:30:29,657 INFO L290 TraceCheckUtils]: 1: Hoare triple {75#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~ret14#1, main_#t~ret15#1, main_~res~0#1, main_~x~0#1;main_~x~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1; {75#true} is VALID [2022-02-20 16:30:29,658 INFO L290 TraceCheckUtils]: 2: Hoare triple {75#true} assume ~fp.lt~DOUBLE(main_~x~0#1, ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.0))) || ~fp.gt~DOUBLE(main_~x~0#1, ~to_fp~DOUBLE(currentRoundingMode, 1.0));assume { :begin_inline___ieee754_acos } true;__ieee754_acos_#in~x#1 := main_~x~0#1;havoc __ieee754_acos_#res#1;havoc __ieee754_acos_#t~mem8#1, __ieee754_acos_~#gh_u~0#1.base, __ieee754_acos_~#gh_u~0#1.offset, __ieee754_acos_#t~mem9#1, __ieee754_acos_~#gl_u~0#1.base, __ieee754_acos_~#gl_u~0#1.offset, __ieee754_acos_~lx~0#1, __ieee754_acos_#t~ret10#1, __ieee754_acos_#t~ret11#1, __ieee754_acos_#t~mem12#1, __ieee754_acos_~#sl_u~0#1.base, __ieee754_acos_~#sl_u~0#1.offset, __ieee754_acos_~x#1, __ieee754_acos_~z~1#1, __ieee754_acos_~p~0#1, __ieee754_acos_~q~1#1, __ieee754_acos_~r~1#1, __ieee754_acos_~w~0#1, __ieee754_acos_~s~0#1, __ieee754_acos_~c~0#1, __ieee754_acos_~df~0#1, __ieee754_acos_~hx~0#1, __ieee754_acos_~ix~0#1;__ieee754_acos_~x#1 := __ieee754_acos_#in~x#1;havoc __ieee754_acos_~z~1#1;havoc __ieee754_acos_~p~0#1;havoc __ieee754_acos_~q~1#1;havoc __ieee754_acos_~r~1#1;havoc __ieee754_acos_~w~0#1;havoc __ieee754_acos_~s~0#1;havoc __ieee754_acos_~c~0#1;havoc __ieee754_acos_~df~0#1;havoc __ieee754_acos_~hx~0#1;havoc __ieee754_acos_~ix~0#1; {75#true} is VALID [2022-02-20 16:30:29,664 INFO L290 TraceCheckUtils]: 3: Hoare triple {75#true} assume !true; {76#false} is VALID [2022-02-20 16:30:29,664 INFO L290 TraceCheckUtils]: 4: Hoare triple {76#false} __ieee754_acos_~ix~0#1 := ~bvand32(2147483647bv32, __ieee754_acos_~hx~0#1); {76#false} is VALID [2022-02-20 16:30:29,664 INFO L290 TraceCheckUtils]: 5: Hoare triple {76#false} assume ~bvsge32(__ieee754_acos_~ix~0#1, 1072693248bv32);havoc __ieee754_acos_~lx~0#1; {76#false} is VALID [2022-02-20 16:30:29,665 INFO L290 TraceCheckUtils]: 6: Hoare triple {76#false} assume !true; {76#false} is VALID [2022-02-20 16:30:29,665 INFO L290 TraceCheckUtils]: 7: Hoare triple {76#false} assume !(0bv32 == ~bvor32(~bvsub32(__ieee754_acos_~ix~0#1, 1072693248bv32), __ieee754_acos_~lx~0#1));__ieee754_acos_#res#1 := ~fp.div~DOUBLE(currentRoundingMode, ~fp.sub~DOUBLE(currentRoundingMode, __ieee754_acos_~x#1, __ieee754_acos_~x#1), ~fp.sub~DOUBLE(currentRoundingMode, __ieee754_acos_~x#1, __ieee754_acos_~x#1)); {76#false} is VALID [2022-02-20 16:30:29,665 INFO L290 TraceCheckUtils]: 8: Hoare triple {76#false} main_#t~ret14#1 := __ieee754_acos_#res#1;assume { :end_inline___ieee754_acos } true;main_~res~0#1 := main_#t~ret14#1;havoc main_#t~ret14#1;assume { :begin_inline_isnan_double } true;isnan_double_#in~x#1 := main_~res~0#1;havoc isnan_double_#res#1;havoc isnan_double_~x#1;isnan_double_~x#1 := isnan_double_#in~x#1;isnan_double_#res#1 := (if !~fp.eq~DOUBLE(isnan_double_~x#1, isnan_double_~x#1) then 1bv32 else 0bv32); {76#false} is VALID [2022-02-20 16:30:29,665 INFO L290 TraceCheckUtils]: 9: Hoare triple {76#false} main_#t~ret15#1 := isnan_double_#res#1;assume { :end_inline_isnan_double } true; {76#false} is VALID [2022-02-20 16:30:29,665 INFO L290 TraceCheckUtils]: 10: Hoare triple {76#false} assume 0bv32 == main_#t~ret15#1;havoc main_#t~ret15#1; {76#false} is VALID [2022-02-20 16:30:29,666 INFO L290 TraceCheckUtils]: 11: Hoare triple {76#false} assume !false; {76#false} is VALID [2022-02-20 16:30:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:30:29,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:30:29,667 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:30:29,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547460596] [2022-02-20 16:30:29,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547460596] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:30:29,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:30:29,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:30:29,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981040761] [2022-02-20 16:30:29,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:30:29,673 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-02-20 16:30:29,674 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:30:29,676 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:30,451 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:30:30,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:30:30,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:30:30,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:30:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:30:30,471 INFO L87 Difference]: Start difference. First operand has 72 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 68 states have internal predecessors, (110), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:30:50,252 INFO L93 Difference]: Finished difference Result 141 states and 226 transitions. [2022-02-20 16:30:50,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:30:50,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-02-20 16:30:50,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:30:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:50,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 226 transitions. [2022-02-20 16:30:50,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:30:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 226 transitions. [2022-02-20 16:30:50,273 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 226 transitions. [2022-02-20 16:31:00,709 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-02-20 16:31:00,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:31:00,713 INFO L933 BasicCegarLoop]: 99 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, 99 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 [2022-02-20 16:31:00,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:31:00,736 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 101 [2022-02-20 16:31:00,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:31:00,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:31:00,922 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.push(ManagedScript.java:124) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertPrecondition(IncrementalHoareTripleChecker.java:294) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddPrecondition(IncrementalHoareTripleChecker.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.checkEnhancement(BasicCegarLoop.java:1023) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:911) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 35 more [2022-02-20 16:31:00,925 INFO L158 Benchmark]: Toolchain (without parser) took 51127.34ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 37.6MB in the beginning and 45.8MB in the end (delta: -8.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-02-20 16:31:00,925 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 41.1MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:31:00,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.60ms. Allocated memory is still 58.7MB. Free memory was 37.5MB in the beginning and 35.6MB in the end (delta: 1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-02-20 16:31:00,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.39ms. Allocated memory is still 58.7MB. Free memory was 35.6MB in the beginning and 33.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 16:31:00,926 INFO L158 Benchmark]: Boogie Preprocessor took 29.03ms. Allocated memory is still 58.7MB. Free memory was 33.0MB in the beginning and 30.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:31:00,927 INFO L158 Benchmark]: RCFGBuilder took 18334.36ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 30.0MB in the beginning and 37.5MB in the end (delta: -7.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-02-20 16:31:00,927 INFO L158 Benchmark]: TraceAbstraction took 32414.22ms. Allocated memory is still 73.4MB. Free memory was 36.8MB in the beginning and 45.8MB in the end (delta: -8.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-02-20 16:31:00,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 41.1MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.60ms. Allocated memory is still 58.7MB. Free memory was 37.5MB in the beginning and 35.6MB in the end (delta: 1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.39ms. Allocated memory is still 58.7MB. Free memory was 35.6MB in the beginning and 33.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.03ms. Allocated memory is still 58.7MB. Free memory was 33.0MB in the beginning and 30.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 18334.36ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 30.0MB in the beginning and 37.5MB in the end (delta: -7.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 32414.22ms. Allocated memory is still 73.4MB. Free memory was 36.8MB in the beginning and 45.8MB in the end (delta: -8.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")