./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1131b.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 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:42:12,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:42:12,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:42:12,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:42:12,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:42:12,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:42:12,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:42:12,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:42:12,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:42:12,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:42:12,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:42:12,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:42:12,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:42:12,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:42:12,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:42:12,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:42:12,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:42:12,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:42:12,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:42:12,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:42:12,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:42:12,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:42:12,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:42:12,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:42:12,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:42:12,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:42:12,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:42:12,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:42:12,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:42:12,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:42:12,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:42:12,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:42:12,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:42:12,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:42:12,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:42:12,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:42:12,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:42:12,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:42:12,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:42:12,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:42:12,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:42:12,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:42:12,561 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:42:12,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:42:12,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:42:12,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:42:12,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:42:12,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:42:12,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:42:12,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:42:12,564 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:42:12,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:42:12,565 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:42:12,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:42:12,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:42:12,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:42:12,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:42:12,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:42:12,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:42:12,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:42:12,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:42:12,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:42:12,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:42:12,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:42:12,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:42:12,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:42:12,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:42:12,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:42:12,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:42:12,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:42:12,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:42:12,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:42:12,567 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:42:12,568 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:42:12,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:42:12,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:42:12,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 [2021-12-15 10:42:12,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:42:12,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:42:12,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:42:12,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:42:12,864 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:42:12,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-12-15 10:42:12,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44d302e6/b9987bc8edc14b6b8dc8a1ed7bbf6d28/FLAGe36650d24 [2021-12-15 10:42:13,272 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:42:13,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-12-15 10:42:13,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44d302e6/b9987bc8edc14b6b8dc8a1ed7bbf6d28/FLAGe36650d24 [2021-12-15 10:42:13,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44d302e6/b9987bc8edc14b6b8dc8a1ed7bbf6d28 [2021-12-15 10:42:13,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:42:13,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:42:13,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:42:13,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:42:13,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:42:13,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:13,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18eff02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13, skipping insertion in model container [2021-12-15 10:42:13,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:13,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:42:13,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:42:13,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-12-15 10:42:13,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:42:13,941 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:42:13,979 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-12-15 10:42:13,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:42:13,995 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:42:13,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13 WrapperNode [2021-12-15 10:42:13,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:42:13,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:42:13,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:42:13,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:42:14,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,046 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2021-12-15 10:42:14,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:42:14,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:42:14,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:42:14,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:42:14,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:42:14,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:42:14,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:42:14,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:42:14,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (1/1) ... [2021-12-15 10:42:14,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:42:14,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:42:14,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:42:14,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:42:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:42:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:42:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:42:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:42:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 10:42:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 10:42:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:42:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:42:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:42:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-15 10:42:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:42:14,250 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:42:14,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:42:14,457 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:42:14,462 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:42:14,462 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-15 10:42:14,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:42:14 BoogieIcfgContainer [2021-12-15 10:42:14,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:42:14,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:42:14,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:42:14,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:42:14,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:42:13" (1/3) ... [2021-12-15 10:42:14,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abc013e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:42:14, skipping insertion in model container [2021-12-15 10:42:14,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:13" (2/3) ... [2021-12-15 10:42:14,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abc013e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:42:14, skipping insertion in model container [2021-12-15 10:42:14,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:42:14" (3/3) ... [2021-12-15 10:42:14,469 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2021-12-15 10:42:14,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:42:14,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:42:14,507 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:42:14,512 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:42:14,512 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:42:14,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 10:42:14,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:42:14,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:42:14,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:42:14,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:42:14,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2021-12-15 10:42:14,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:42:14,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588833838] [2021-12-15 10:42:14,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:42:14,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:42:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:42:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:42:14,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:42:14,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588833838] [2021-12-15 10:42:14,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588833838] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:42:14,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:42:14,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:42:14,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118702604] [2021-12-15 10:42:14,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:42:14,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:42:14,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:42:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:42:14,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:42:14,683 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:14,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:42:14,698 INFO L93 Difference]: Finished difference Result 92 states and 154 transitions. [2021-12-15 10:42:14,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:42:14,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-15 10:42:14,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:42:14,705 INFO L225 Difference]: With dead ends: 92 [2021-12-15 10:42:14,705 INFO L226 Difference]: Without dead ends: 43 [2021-12-15 10:42:14,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:42:14,709 INFO L933 BasicCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:42:14,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:42:14,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-15 10:42:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-12-15 10:42:14,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.380952380952381) internal successors, (58), 42 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:14,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2021-12-15 10:42:14,736 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2021-12-15 10:42:14,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:42:14,737 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2021-12-15 10:42:14,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2021-12-15 10:42:14,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-15 10:42:14,738 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:42:14,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:42:14,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:42:14,740 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:42:14,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:42:14,743 INFO L85 PathProgramCache]: Analyzing trace with hash -794964373, now seen corresponding path program 1 times [2021-12-15 10:42:14,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:42:14,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983552829] [2021-12-15 10:42:14,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:42:14,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:42:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:42:14,848 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 10:42:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:42:14,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 10:42:14,895 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 10:42:14,897 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:42:14,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 10:42:14,903 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-15 10:42:14,914 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:42:14,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:42:14 BoogieIcfgContainer [2021-12-15 10:42:14,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:42:14,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:42:14,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:42:14,949 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:42:14,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:42:14" (3/4) ... [2021-12-15 10:42:14,952 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 10:42:14,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:42:14,953 INFO L158 Benchmark]: Toolchain (without parser) took 1268.34ms. Allocated memory is still 121.6MB. Free memory was 81.5MB in the beginning and 94.6MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:42:14,953 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory was 98.1MB in the beginning and 98.0MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:42:14,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.61ms. Allocated memory is still 121.6MB. Free memory was 81.3MB in the beginning and 93.7MB in the end (delta: -12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:42:14,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.50ms. Allocated memory is still 121.6MB. Free memory was 93.7MB in the beginning and 91.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:42:14,957 INFO L158 Benchmark]: Boogie Preprocessor took 52.63ms. Allocated memory is still 121.6MB. Free memory was 91.7MB in the beginning and 89.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:42:14,958 INFO L158 Benchmark]: RCFGBuilder took 362.74ms. Allocated memory is still 121.6MB. Free memory was 89.7MB in the beginning and 75.0MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 10:42:14,959 INFO L158 Benchmark]: TraceAbstraction took 483.41ms. Allocated memory is still 121.6MB. Free memory was 74.4MB in the beginning and 94.9MB in the end (delta: -20.5MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2021-12-15 10:42:14,959 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 121.6MB. Free memory was 94.9MB in the beginning and 94.6MB in the end (delta: 324.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:42:14,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory was 98.1MB in the beginning and 98.0MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.61ms. Allocated memory is still 121.6MB. Free memory was 81.3MB in the beginning and 93.7MB in the end (delta: -12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.50ms. Allocated memory is still 121.6MB. Free memory was 93.7MB in the beginning and 91.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.63ms. Allocated memory is still 121.6MB. Free memory was 91.7MB in the beginning and 89.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.74ms. Allocated memory is still 121.6MB. Free memory was 89.7MB in the beginning and 75.0MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 483.41ms. Allocated memory is still 121.6MB. Free memory was 74.4MB in the beginning and 94.9MB in the end (delta: -20.5MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 121.6MB. Free memory was 94.9MB in the beginning and 94.6MB in the end (delta: 324.4kB). 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L128] float x = __VERIFIER_nondet_float(); [L129] float y = -1.0f / 0.0f; [L131] CALL isfinite_float(x) [L111] __int32_t ix; VAL [\old(x)=8589934593, one_fmod=1, x=8589934593, Zero_fmod={4:0}] [L113] ieee_float_shape_type gf_u; [L114] gf_u.value = (x) [L115] EXPR gf_u.word [L115] (ix) = gf_u.word [L117] ix &= 0x7fffffff [L118] return (((ix) < 0x7f800000L)); VAL [\old(x)=8589934593, \result=1, ix=2139095039, one_fmod=1, x=8589934593, Zero_fmod={4:0}] [L131] RET isfinite_float(x) [L131] COND TRUE isfinite_float(x) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=8589934593, \old(y)=8589934591, one_fmod=1, x=8589934593, y=8589934591, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=8589934593, \old(y)=8589934591, one_fmod=1, sx=9, x=8589934593, y=8589934591, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=8589934593, \old(y)=8589934591, hx=2139095040, hy=0, one_fmod=1, sx=9, x=8589934593, y=8589934591, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] COND TRUE res != x VAL [one_fmod=1, res=8589934592, x=8589934593, y=8589934591, Zero_fmod={4:0}] [L137] reach_error() VAL [one_fmod=1, res=8589934592, x=8589934593, y=8589934591, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 63 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-15 10:42:15,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1131b.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 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:42:16,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:42:16,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:42:16,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:42:16,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:42:16,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:42:16,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:42:16,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:42:16,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:42:16,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:42:16,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:42:16,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:42:16,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:42:16,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:42:16,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:42:16,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:42:16,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:42:16,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:42:16,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:42:16,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:42:16,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:42:16,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:42:16,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:42:16,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:42:16,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:42:16,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:42:16,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:42:16,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:42:16,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:42:16,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:42:16,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:42:16,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:42:16,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:42:16,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:42:16,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:42:16,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:42:16,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:42:16,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:42:16,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:42:16,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:42:16,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:42:16,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:42:16,849 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:42:16,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:42:16,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:42:16,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:42:16,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:42:16,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:42:16,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:42:16,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:42:16,853 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:42:16,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:42:16,854 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:42:16,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:42:16,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:42:16,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:42:16,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:42:16,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:42:16,855 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:42:16,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:42:16,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:42:16,856 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:42:16,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:42:16,856 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:42:16,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:42:16,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:42:16,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:42:16,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:42:16,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:42:16,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:42:16,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:42:16,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:42:16,857 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:42:16,858 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:42:16,858 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:42:16,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:42:16,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:42:16,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:42:16,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:42:16,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 [2021-12-15 10:42:17,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:42:17,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:42:17,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:42:17,149 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:42:17,149 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:42:17,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-12-15 10:42:17,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ae1ad5f/e4c0a313fcaf4fe8a4b2b1131a1e57f6/FLAG7cba59bc2 [2021-12-15 10:42:17,643 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:42:17,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-12-15 10:42:17,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ae1ad5f/e4c0a313fcaf4fe8a4b2b1131a1e57f6/FLAG7cba59bc2 [2021-12-15 10:42:18,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ae1ad5f/e4c0a313fcaf4fe8a4b2b1131a1e57f6 [2021-12-15 10:42:18,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:42:18,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:42:18,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:42:18,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:42:18,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:42:18,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af52e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18, skipping insertion in model container [2021-12-15 10:42:18,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:42:18,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:42:18,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-12-15 10:42:18,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:42:18,315 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:42:18,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-12-15 10:42:18,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:42:18,368 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:42:18,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18 WrapperNode [2021-12-15 10:42:18,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:42:18,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:42:18,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:42:18,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:42:18,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,403 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2021-12-15 10:42:18,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:42:18,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:42:18,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:42:18,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:42:18,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:42:18,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:42:18,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:42:18,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:42:18,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (1/1) ... [2021-12-15 10:42:18,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:42:18,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:42:18,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:42:18,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:42:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:42:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-15 10:42:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:42:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:42:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-15 10:42:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:42:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:42:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:42:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-15 10:42:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:42:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:42:18,552 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:42:18,553 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:42:19,893 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:42:19,897 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:42:19,897 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-15 10:42:19,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:42:19 BoogieIcfgContainer [2021-12-15 10:42:19,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:42:19,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:42:19,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:42:19,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:42:19,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:42:18" (1/3) ... [2021-12-15 10:42:19,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70120ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:42:19, skipping insertion in model container [2021-12-15 10:42:19,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:42:18" (2/3) ... [2021-12-15 10:42:19,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70120ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:42:19, skipping insertion in model container [2021-12-15 10:42:19,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:42:19" (3/3) ... [2021-12-15 10:42:19,917 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2021-12-15 10:42:19,921 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:42:19,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:42:19,961 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:42:19,966 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:42:19,967 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:42:19,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:19,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 10:42:19,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:42:19,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:42:19,981 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:42:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:42:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2021-12-15 10:42:19,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:42:19,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585633752] [2021-12-15 10:42:19,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:42:19,993 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:42:19,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:42:19,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:42:19,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:42:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:42:20,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 10:42:20,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:42:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:42:20,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:42:20,283 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:42:20,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585633752] [2021-12-15 10:42:20,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585633752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:42:20,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:42:20,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:42:20,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269622807] [2021-12-15 10:42:20,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:42:20,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:42:20,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:42:20,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:42:20,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:42:20,308 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:20,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:42:20,320 INFO L93 Difference]: Finished difference Result 92 states and 154 transitions. [2021-12-15 10:42:20,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:42:20,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-15 10:42:20,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:42:20,332 INFO L225 Difference]: With dead ends: 92 [2021-12-15 10:42:20,332 INFO L226 Difference]: Without dead ends: 43 [2021-12-15 10:42:20,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:42:20,337 INFO L933 BasicCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:42:20,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:42:20,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-15 10:42:20,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-12-15 10:42:20,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.380952380952381) internal successors, (58), 42 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:20,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2021-12-15 10:42:20,359 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2021-12-15 10:42:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:42:20,359 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2021-12-15 10:42:20,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:20,360 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2021-12-15 10:42:20,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-15 10:42:20,360 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:42:20,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:42:20,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 10:42:20,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:42:20,569 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:42:20,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:42:20,569 INFO L85 PathProgramCache]: Analyzing trace with hash -794964373, now seen corresponding path program 1 times [2021-12-15 10:42:20,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:42:20,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619081288] [2021-12-15 10:42:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:42:20,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:42:20,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:42:20,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:42:20,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 10:42:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:42:20,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-15 10:42:20,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:42:21,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 10:42:22,008 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-12-15 10:42:22,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 35 [2021-12-15 10:42:22,304 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-15 10:42:22,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 24 [2021-12-15 10:42:22,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:42:22,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:42:22,744 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:42:22,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619081288] [2021-12-15 10:42:22,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619081288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:42:22,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:42:22,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 10:42:22,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708526542] [2021-12-15 10:42:22,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:42:22,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-15 10:42:22,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:42:22,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-15 10:42:22,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-15 10:42:22,746 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:22,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:42:22,765 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2021-12-15 10:42:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 10:42:22,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 16 [2021-12-15 10:42:22,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:42:22,769 INFO L225 Difference]: With dead ends: 47 [2021-12-15 10:42:22,770 INFO L226 Difference]: Without dead ends: 43 [2021-12-15 10:42:22,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-15 10:42:22,772 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:42:22,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 115 Unchecked, 0.0s Time] [2021-12-15 10:42:22,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-15 10:42:22,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-12-15 10:42:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:22,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2021-12-15 10:42:22,782 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 16 [2021-12-15 10:42:22,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:42:22,783 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2021-12-15 10:42:22,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:22,784 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2021-12-15 10:42:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-15 10:42:22,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:42:22,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:42:22,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 10:42:22,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:42:22,998 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:42:22,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:42:22,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1123581797, now seen corresponding path program 1 times [2021-12-15 10:42:22,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:42:22,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487189201] [2021-12-15 10:42:22,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:42:22,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:42:23,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:42:23,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:42:23,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 10:42:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:42:23,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-15 10:42:23,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:42:24,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:42:24,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:42:24,174 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:42:24,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487189201] [2021-12-15 10:42:24,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487189201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:42:24,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:42:24,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-15 10:42:24,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528855909] [2021-12-15 10:42:24,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:42:24,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 10:42:24,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:42:24,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 10:42:24,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 10:42:24,176 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:24,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:42:24,421 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2021-12-15 10:42:24,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 10:42:24,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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 17 [2021-12-15 10:42:24,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:42:24,422 INFO L225 Difference]: With dead ends: 49 [2021-12-15 10:42:24,422 INFO L226 Difference]: Without dead ends: 45 [2021-12-15 10:42:24,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-15 10:42:24,423 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 37 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:42:24,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 342 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2021-12-15 10:42:24,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-15 10:42:24,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-12-15 10:42:24,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:24,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2021-12-15 10:42:24,428 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 17 [2021-12-15 10:42:24,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:42:24,428 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2021-12-15 10:42:24,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:24,429 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2021-12-15 10:42:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 10:42:24,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:42:24,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:42:24,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 10:42:24,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:42:24,638 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:42:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:42:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash 469119878, now seen corresponding path program 1 times [2021-12-15 10:42:24,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:42:24,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852386451] [2021-12-15 10:42:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:42:24,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:42:24,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:42:24,644 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:42:24,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 10:42:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:42:24,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-15 10:42:24,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:42:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:42:25,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:42:25,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:42:25,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852386451] [2021-12-15 10:42:25,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852386451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:42:25,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:42:25,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 10:42:25,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91597655] [2021-12-15 10:42:25,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:42:25,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 10:42:25,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:42:25,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 10:42:25,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-15 10:42:25,222 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:25,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:42:25,226 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2021-12-15 10:42:25,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 10:42:25,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-15 10:42:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:42:25,226 INFO L225 Difference]: With dead ends: 43 [2021-12-15 10:42:25,226 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 10:42:25,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-15 10:42:25,227 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:42:25,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-12-15 10:42:25,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 10:42:25,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 10:42:25,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:25,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 10:42:25,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-12-15 10:42:25,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:42:25,229 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 10:42:25,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:42:25,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 10:42:25,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 10:42:25,231 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:42:25,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 10:42:25,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:42:25,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 10:42:26,597 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-12-15 10:42:26,597 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-12-15 10:42:26,597 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-12-15 10:42:26,598 INFO L858 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-12-15 10:42:26,598 INFO L854 garLoopResultBuilder]: At program point L118(lines 110 119) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_main_~y~0#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) (= |ULTIMATE.start_isfinite_float_~x#1| |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (let ((.cse0 (bvslt (bvand (_ bv2147483647 32) .cse1) (_ bv2139095040 32)))) (or (and (not .cse0) (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv0 32))) (and .cse0 (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv1 32))))) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_main_~x~0#1|))))) [2021-12-15 10:42:26,598 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-12-15 10:42:26,598 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-12-15 10:42:26,598 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-12-15 10:42:26,598 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 10:42:26,598 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 10:42:26,599 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-12-15 10:42:26,599 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-12-15 10:42:26,599 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 139) no Hoare annotation was computed. [2021-12-15 10:42:26,599 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-12-15 10:42:26,599 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2021-12-15 10:42:26,599 INFO L854 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_main_~y~0#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) (= |ULTIMATE.start_isfinite_float_~x#1| |ULTIMATE.start_main_~x~0#1|)) [2021-12-15 10:42:26,599 INFO L858 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2021-12-15 10:42:26,600 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-15 10:42:26,600 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-12-15 10:42:26,600 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-12-15 10:42:26,600 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-12-15 10:42:26,600 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~x#1| |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (bvslt (bvand (_ bv2147483647 32) .cse0) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_fmod_float_~x#1|)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmod_float_~y#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))) [2021-12-15 10:42:26,600 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-12-15 10:42:26,600 INFO L858 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-12-15 10:42:26,600 INFO L854 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_isfinite_float_~ix~1#1_7| (_ BitVec 32))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start_isfinite_float_~ix~1#1_7|) ((_ extract 30 23) |v_ULTIMATE.start_isfinite_float_~ix~1#1_7|) ((_ extract 22 0) |v_ULTIMATE.start_isfinite_float_~ix~1#1_7|)) |ULTIMATE.start_main_~x~0#1|) (bvslt (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isfinite_float_~ix~1#1_7|) (_ bv2139095040 32)))) (= |ULTIMATE.start_fmod_float_#res#1| |ULTIMATE.start_main_~x~0#1|)) [2021-12-15 10:42:26,601 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-12-15 10:42:26,601 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2021-12-15 10:42:26,601 INFO L858 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2021-12-15 10:42:26,601 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 10:42:26,601 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-12-15 10:42:26,601 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-12-15 10:42:26,601 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2021-12-15 10:42:26,601 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-12-15 10:42:26,601 INFO L854 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2021-12-15 10:42:26,601 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-12-15 10:42:26,601 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-12-15 10:42:26,602 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 10:42:26,602 INFO L858 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-12-15 10:42:26,602 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-12-15 10:42:26,602 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-12-15 10:42:26,602 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-12-15 10:42:26,602 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-12-15 10:42:26,602 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-12-15 10:42:26,602 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-12-15 10:42:26,602 INFO L861 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2021-12-15 10:42:26,602 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-12-15 10:42:26,602 INFO L854 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2021-12-15 10:42:26,605 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-15 10:42:26,606 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:42:26,614 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:42:26 BoogieIcfgContainer [2021-12-15 10:42:26,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:42:26,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:42:26,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:42:26,630 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:42:26,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:42:19" (3/4) ... [2021-12-15 10:42:26,632 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 10:42:26,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-12-15 10:42:26,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-12-15 10:42:26,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 10:42:26,644 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 10:42:26,657 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && x == x [2021-12-15 10:42:26,658 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && x == x) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6 : bv32 :: ((!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && \result == 0bv32) || (~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && \result == 1bv32)) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][22:0]) == x) [2021-12-15 10:42:26,658 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == x && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][22:0]) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-12-15 10:42:26,663 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 10:42:26,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:42:26,664 INFO L158 Benchmark]: Toolchain (without parser) took 8582.41ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 34.0MB in the beginning and 54.7MB in the end (delta: -20.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2021-12-15 10:42:26,664 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:42:26,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.25ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 33.8MB in the beginning and 56.8MB in the end (delta: -23.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-15 10:42:26,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.32ms. Allocated memory is still 75.5MB. Free memory was 56.6MB in the beginning and 54.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:42:26,665 INFO L158 Benchmark]: Boogie Preprocessor took 33.07ms. Allocated memory is still 75.5MB. Free memory was 54.6MB in the beginning and 52.8MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 10:42:26,665 INFO L158 Benchmark]: RCFGBuilder took 1460.41ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 54.0MB in the end (delta: -1.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-12-15 10:42:26,665 INFO L158 Benchmark]: TraceAbstraction took 6729.61ms. Allocated memory is still 75.5MB. Free memory was 53.4MB in the beginning and 30.7MB in the end (delta: 22.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-12-15 10:42:26,666 INFO L158 Benchmark]: Witness Printer took 34.01ms. Allocated memory is still 75.5MB. Free memory was 30.7MB in the beginning and 54.7MB in the end (delta: -24.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:42:26,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.25ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 33.8MB in the beginning and 56.8MB in the end (delta: -23.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.32ms. Allocated memory is still 75.5MB. Free memory was 56.6MB in the beginning and 54.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.07ms. Allocated memory is still 75.5MB. Free memory was 54.6MB in the beginning and 52.8MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1460.41ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 54.0MB in the end (delta: -1.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6729.61ms. Allocated memory is still 75.5MB. Free memory was 53.4MB in the beginning and 30.7MB in the end (delta: 22.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Witness Printer took 34.01ms. Allocated memory is still 75.5MB. Free memory was 30.7MB in the beginning and 54.7MB in the end (delta: -24.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 137]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 771 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 152 IncrementalHoareTripleChecker+Unchecked, 600 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 171 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 152 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 34 QuantifiedInterpolants, 992 SizeOfPredicates, 33 NumberOfNonLiveVariables, 299 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-12-15 10:42:26,675 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,676 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (x == x && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][22:0]) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,677 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && x == x) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6 : bv32 :: ((!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && \result == 0bv32) || (~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && \result == 1bv32)) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][22:0]) == x) - InvariantResult [Line: 112]: Loop Invariant [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,678 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && x == x - InvariantResult [Line: 19]: Loop Invariant [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2021-12-15 10:42:26,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_isfinite_float_~ix~1#1_7 : bv32 :: ~fp~LONGDOUBLE(v_ULTIMATE.start_isfinite_float_~ix~1#1_7[31:31], v_ULTIMATE.start_isfinite_float_~ix~1#1_7[30:23], v_ULTIMATE.start_isfinite_float_~ix~1#1_7[22:0]) == x && ~bvslt32(~bvand32(2147483647bv32, v_ULTIMATE.start_isfinite_float_~ix~1#1_7), 2139095040bv32)) && \result == x RESULT: Ultimate proved your program to be correct! [2021-12-15 10:42:26,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE