./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.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 --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 ae08d3dbde40e32197902417be767e9b8a44048ec2abbe937f73d3dc278c75f1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:55:14,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:55:14,284 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 00:55:14,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:55:14,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:55:14,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:55:14,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:55:14,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:55:14,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:55:14,328 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:55:14,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:55:14,328 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:55:14,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:55:14,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:55:14,329 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:55:14,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:55:14,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:55:14,330 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:55:14,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 00:55:14,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:55:14,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:55:14,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:55:14,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:55:14,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:55:14,334 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:55:14,334 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:55:14,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:55:14,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:55:14,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:55:14,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:55:14,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:55:14,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:55:14,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:55:14,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:55:14,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:55:14,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:55:14,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 00:55:14,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 00:55:14,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:55:14,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:55:14,338 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:55:14,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:55:14,339 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae08d3dbde40e32197902417be767e9b8a44048ec2abbe937f73d3dc278c75f1 [2024-10-14 00:55:14,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:55:14,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:55:14,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:55:14,627 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:55:14,627 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:55:14,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2024-10-14 00:55:16,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:55:16,262 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:55:16,264 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2024-10-14 00:55:16,275 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5655c86d4/c2a572da636b486abbea1292d08b9ec3/FLAGe4b1f5707 [2024-10-14 00:55:16,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5655c86d4/c2a572da636b486abbea1292d08b9ec3 [2024-10-14 00:55:16,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:55:16,297 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:55:16,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:55:16,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:55:16,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:55:16,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed1c542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16, skipping insertion in model container [2024-10-14 00:55:16,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,335 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:55:16,543 WARN L248 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_0831.c[3205,3218] [2024-10-14 00:55:16,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:55:16,571 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:55:16,617 WARN L248 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_0831.c[3205,3218] [2024-10-14 00:55:16,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:55:16,636 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:55:16,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16 WrapperNode [2024-10-14 00:55:16,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:55:16,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:55:16,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:55:16,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:55:16,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,676 INFO L138 Inliner]: procedures = 18, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2024-10-14 00:55:16,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:55:16,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:55:16,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:55:16,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:55:16,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,724 INFO L175 MemorySlicer]: Split 23 memory accesses to 9 slices as follows [2, 2, 3, 4, 4, 2, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 2, 2, 2, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 0, 0, 0, 1, 1, 1, 1]. [2024-10-14 00:55:16,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:55:16,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:55:16,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:55:16,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:55:16,758 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (1/1) ... [2024-10-14 00:55:16,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:55:16,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:55:16,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 00:55:16,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 00:55:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:55:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 00:55:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 00:55:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 00:55:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 00:55:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 00:55:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 00:55:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 00:55:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-14 00:55:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-14 00:55:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 00:55:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 00:55:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 00:55:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 00:55:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 00:55:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 00:55:16,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 00:55:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 00:55:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-14 00:55:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-14 00:55:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-14 00:55:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-14 00:55:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-14 00:55:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-14 00:55:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-14 00:55:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-14 00:55:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-14 00:55:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-14 00:55:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-14 00:55:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-14 00:55:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-14 00:55:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-14 00:55:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-14 00:55:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-14 00:55:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-14 00:55:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-14 00:55:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-14 00:55:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-14 00:55:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:55:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:55:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 00:55:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 00:55:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 00:55:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 00:55:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 00:55:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 00:55:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 00:55:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-14 00:55:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-14 00:55:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-14 00:55:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-14 00:55:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-14 00:55:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-14 00:55:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-14 00:55:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-14 00:55:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-14 00:55:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-14 00:55:16,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-14 00:55:16,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 00:55:17,002 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:55:17,006 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:55:17,216 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-10-14 00:55:17,217 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:55:17,244 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:55:17,245 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-14 00:55:17,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:55:17 BoogieIcfgContainer [2024-10-14 00:55:17,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:55:17,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:55:17,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:55:17,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:55:17,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:55:16" (1/3) ... [2024-10-14 00:55:17,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527c2a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:55:17, skipping insertion in model container [2024-10-14 00:55:17,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:16" (2/3) ... [2024-10-14 00:55:17,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527c2a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:55:17, skipping insertion in model container [2024-10-14 00:55:17,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:55:17" (3/3) ... [2024-10-14 00:55:17,254 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2024-10-14 00:55:17,271 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:55:17,271 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:55:17,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:55:17,330 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66cc550e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:55:17,331 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:55:17,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 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) [2024-10-14 00:55:17,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 00:55:17,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:55:17,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:55:17,340 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:55:17,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:55:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash -91583621, now seen corresponding path program 1 times [2024-10-14 00:55:17,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:55:17,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500427827] [2024-10-14 00:55:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:55:17,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:55:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:55:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:55:17,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:55:17,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500427827] [2024-10-14 00:55:17,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500427827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:55:17,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:55:17,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:55:17,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583887870] [2024-10-14 00:55:17,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:55:17,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:55:17,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:55:17,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:55:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:55:17,558 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-14 00:55:17,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:55:17,588 INFO L93 Difference]: Finished difference Result 63 states and 103 transitions. [2024-10-14 00:55:17,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:55:17,618 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-10-14 00:55:17,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:55:17,627 INFO L225 Difference]: With dead ends: 63 [2024-10-14 00:55:17,629 INFO L226 Difference]: Without dead ends: 30 [2024-10-14 00:55:17,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:55:17,636 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:55:17,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:55:17,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-14 00:55:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-14 00:55:17,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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) [2024-10-14 00:55:17,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-10-14 00:55:17,676 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 7 [2024-10-14 00:55:17,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:55:17,677 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-10-14 00:55:17,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-14 00:55:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-10-14 00:55:17,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 00:55:17,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:55:17,679 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:55:17,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 00:55:17,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:55:17,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:55:17,681 INFO L85 PathProgramCache]: Analyzing trace with hash -611045796, now seen corresponding path program 1 times [2024-10-14 00:55:17,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:55:17,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515703498] [2024-10-14 00:55:17,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:55:17,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:55:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:55:17,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 00:55:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:55:17,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 00:55:17,845 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 00:55:17,846 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 00:55:17,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 00:55:17,852 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-14 00:55:17,879 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 00:55:17,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:55:17 BoogieIcfgContainer [2024-10-14 00:55:17,882 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 00:55:17,883 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 00:55:17,883 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 00:55:17,883 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 00:55:17,885 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:55:17" (3/4) ... [2024-10-14 00:55:17,888 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 00:55:17,889 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 00:55:17,890 INFO L158 Benchmark]: Toolchain (without parser) took 1592.51ms. Allocated memory is still 176.2MB. Free memory was 145.8MB in the beginning and 126.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-10-14 00:55:17,891 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 89.4MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:55:17,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.26ms. Allocated memory is still 176.2MB. Free memory was 145.1MB in the beginning and 131.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 00:55:17,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.19ms. Allocated memory is still 176.2MB. Free memory was 131.8MB in the beginning and 129.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:55:17,895 INFO L158 Benchmark]: Boogie Preprocessor took 79.10ms. Allocated memory is still 176.2MB. Free memory was 129.7MB in the beginning and 126.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 00:55:17,895 INFO L158 Benchmark]: RCFGBuilder took 488.12ms. Allocated memory is still 176.2MB. Free memory was 126.3MB in the beginning and 105.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 00:55:17,895 INFO L158 Benchmark]: TraceAbstraction took 635.03ms. Allocated memory is still 176.2MB. Free memory was 104.6MB in the beginning and 126.0MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:55:17,896 INFO L158 Benchmark]: Witness Printer took 5.64ms. Allocated memory is still 176.2MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:55:17,901 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 89.4MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.26ms. Allocated memory is still 176.2MB. Free memory was 145.1MB in the beginning and 131.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.19ms. Allocated memory is still 176.2MB. Free memory was 131.8MB in the beginning and 129.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.10ms. Allocated memory is still 176.2MB. Free memory was 129.7MB in the beginning and 126.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 488.12ms. Allocated memory is still 176.2MB. Free memory was 126.3MB in the beginning and 105.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 635.03ms. Allocated memory is still 176.2MB. Free memory was 104.6MB in the beginning and 126.0MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.64ms. Allocated memory is still 176.2MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 123]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L118] float x = 0.0f / 0.0f; [L119] CALL, EXPR __ieee754_expf(x) [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=-1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000009, xsb=1] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=-1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000009, xsb=1] [L119] RET, EXPR __ieee754_expf(x) [L119] float res = __ieee754_expf(x); [L122] CALL, EXPR isnan_float(res) [L15] return x != x; [L122] RET, EXPR isnan_float(res) [L122] COND TRUE !isnan_float(res) [L123] reach_error() VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 38 mSDtfsCounter, 3 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=32occurred 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, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2024-10-14 00:55:17,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.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 --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 ae08d3dbde40e32197902417be767e9b8a44048ec2abbe937f73d3dc278c75f1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:55:20,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:55:20,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 00:55:20,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:55:20,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:55:20,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:55:20,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:55:20,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:55:20,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:55:20,218 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:55:20,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:55:20,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:55:20,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:55:20,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:55:20,220 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:55:20,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:55:20,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:55:20,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:55:20,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:55:20,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:55:20,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:55:20,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:55:20,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:55:20,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 00:55:20,223 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 00:55:20,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:55:20,224 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 00:55:20,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:55:20,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:55:20,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:55:20,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:55:20,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:55:20,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:55:20,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:55:20,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:55:20,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:55:20,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:55:20,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:55:20,227 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 00:55:20,227 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 00:55:20,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:55:20,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:55:20,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:55:20,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:55:20,228 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 00:55:20,228 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae08d3dbde40e32197902417be767e9b8a44048ec2abbe937f73d3dc278c75f1 [2024-10-14 00:55:20,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:55:20,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:55:20,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:55:20,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:55:20,606 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:55:20,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2024-10-14 00:55:22,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:55:22,331 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:55:22,331 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2024-10-14 00:55:22,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a4d989bf/ea367bfc14da4fd49748c9e9b55878f9/FLAG0960737ef [2024-10-14 00:55:22,350 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a4d989bf/ea367bfc14da4fd49748c9e9b55878f9 [2024-10-14 00:55:22,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:55:22,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:55:22,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:55:22,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:55:22,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:55:22,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ae62cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22, skipping insertion in model container [2024-10-14 00:55:22,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:55:22,596 WARN L248 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_0831.c[3205,3218] [2024-10-14 00:55:22,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:55:22,624 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:55:22,667 WARN L248 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_0831.c[3205,3218] [2024-10-14 00:55:22,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:55:22,694 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:55:22,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22 WrapperNode [2024-10-14 00:55:22,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:55:22,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:55:22,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:55:22,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:55:22,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,752 INFO L138 Inliner]: procedures = 21, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 170 [2024-10-14 00:55:22,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:55:22,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:55:22,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:55:22,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:55:22,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,794 INFO L175 MemorySlicer]: Split 23 memory accesses to 9 slices as follows [2, 3, 4, 4, 2, 2, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 2, 2, 2, 0, 0, 0, 0, 0]. The 5 writes are split as follows [0, 0, 0, 0, 1, 1, 1, 1, 1]. [2024-10-14 00:55:22,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,843 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:55:22,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:55:22,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:55:22,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:55:22,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (1/1) ... [2024-10-14 00:55:22,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:55:22,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:55:22,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 00:55:22,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 00:55:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:55:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-10-14 00:55:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-10-14 00:55:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-10-14 00:55:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-10-14 00:55:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-10-14 00:55:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-10-14 00:55:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-10-14 00:55:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-10-14 00:55:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-10-14 00:55:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 00:55:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-14 00:55:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-14 00:55:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-14 00:55:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-14 00:55:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-14 00:55:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-14 00:55:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-10-14 00:55:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-10-14 00:55:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 00:55:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-14 00:55:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-14 00:55:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-14 00:55:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-14 00:55:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-10-14 00:55:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-14 00:55:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-14 00:55:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-10-14 00:55:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-10-14 00:55:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:55:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:55:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-14 00:55:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-14 00:55:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-14 00:55:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-14 00:55:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-14 00:55:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-14 00:55:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-14 00:55:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-10-14 00:55:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-10-14 00:55:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 00:55:23,094 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:55:23,096 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:55:40,090 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-10-14 00:55:40,091 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:55:40,122 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:55:40,123 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-14 00:55:40,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:55:40 BoogieIcfgContainer [2024-10-14 00:55:40,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:55:40,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:55:40,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:55:40,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:55:40,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:55:22" (1/3) ... [2024-10-14 00:55:40,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa4fbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:55:40, skipping insertion in model container [2024-10-14 00:55:40,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:22" (2/3) ... [2024-10-14 00:55:40,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa4fbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:55:40, skipping insertion in model container [2024-10-14 00:55:40,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:55:40" (3/3) ... [2024-10-14 00:55:40,137 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2024-10-14 00:55:40,153 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:55:40,154 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:55:40,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:55:40,236 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3529cc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:55:40,237 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:55:40,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 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) [2024-10-14 00:55:40,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 00:55:40,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:55:40,249 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:55:40,249 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:55:40,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:55:40,255 INFO L85 PathProgramCache]: Analyzing trace with hash -91583621, now seen corresponding path program 1 times [2024-10-14 00:55:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:55:40,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123856460] [2024-10-14 00:55:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:55:40,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:55:40,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:55:40,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:55:40,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 00:55:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:55:40,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 00:55:40,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:55:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:55:40,716 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:55:40,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:55:40,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123856460] [2024-10-14 00:55:40,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123856460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:55:40,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:55:40,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:55:40,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273155225] [2024-10-14 00:55:40,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:55:40,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:55:40,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:55:40,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:55:40,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:55:40,745 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-14 00:55:40,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:55:40,798 INFO L93 Difference]: Finished difference Result 63 states and 103 transitions. [2024-10-14 00:55:40,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:55:40,801 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-10-14 00:55:40,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:55:40,808 INFO L225 Difference]: With dead ends: 63 [2024-10-14 00:55:40,808 INFO L226 Difference]: Without dead ends: 30 [2024-10-14 00:55:40,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:55:40,814 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 00:55:40,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:55:40,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-14 00:55:40,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-14 00:55:40,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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) [2024-10-14 00:55:40,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-10-14 00:55:40,856 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 7 [2024-10-14 00:55:40,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:55:40,856 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-10-14 00:55:40,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-14 00:55:40,857 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-10-14 00:55:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 00:55:40,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:55:40,857 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:55:40,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-14 00:55:41,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:55:41,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:55:41,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:55:41,060 INFO L85 PathProgramCache]: Analyzing trace with hash -611045796, now seen corresponding path program 1 times [2024-10-14 00:55:41,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:55:41,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310336104] [2024-10-14 00:55:41,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:55:41,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:55:41,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:55:41,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:55:41,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 00:55:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:55:41,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 00:55:41,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:55:41,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:55:41,835 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:55:41,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:55:41,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310336104] [2024-10-14 00:55:41,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310336104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:55:41,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:55:41,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 00:55:41,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616351778] [2024-10-14 00:55:41,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:55:41,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 00:55:41,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:55:41,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 00:55:41,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:55:41,838 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-14 00:55:44,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-14 00:55:48,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:55:50,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:55:54,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:55:58,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:56:00,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:56:04,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:56:07,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:56:11,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 00:56:11,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:56:11,948 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2024-10-14 00:56:11,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 00:56:11,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-10-14 00:56:11,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:56:11,957 INFO L225 Difference]: With dead ends: 39 [2024-10-14 00:56:11,957 INFO L226 Difference]: Without dead ends: 33 [2024-10-14 00:56:11,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:56:11,958 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 12 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2024-10-14 00:56:11,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 85 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 4 Unknown, 0 Unchecked, 30.1s Time] [2024-10-14 00:56:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-10-14 00:56:11,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2024-10-14 00:56:11,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 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) [2024-10-14 00:56:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-10-14 00:56:11,965 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 8 [2024-10-14 00:56:11,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:56:11,965 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-10-14 00:56:11,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-14 00:56:11,965 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-10-14 00:56:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 00:56:11,966 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:56:11,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:56:11,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-14 00:56:12,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:56:12,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:56:12,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:56:12,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1764000547, now seen corresponding path program 1 times [2024-10-14 00:56:12,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:56:12,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783699933] [2024-10-14 00:56:12,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:56:12,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:56:12,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:56:12,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 00:56:12,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-14 00:56:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:56:12,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 00:56:12,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:56:13,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:56:13,077 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:56:13,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 00:56:13,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783699933] [2024-10-14 00:56:13,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783699933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:56:13,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:56:13,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 00:56:13,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230243591] [2024-10-14 00:56:13,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:56:13,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 00:56:13,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 00:56:13,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 00:56:13,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:56:13,080 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-10-14 00:56:13,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:56:13,421 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2024-10-14 00:56:13,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 00:56:13,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-10-14 00:56:13,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:56:13,424 INFO L225 Difference]: With dead ends: 32 [2024-10-14 00:56:13,424 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 00:56:13,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:56:13,425 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 00:56:13,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 00:56:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 00:56:13,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 00:56:13,426 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) [2024-10-14 00:56:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 00:56:13,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2024-10-14 00:56:13,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:56:13,427 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 00:56:13,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-10-14 00:56:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 00:56:13,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 00:56:13,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 00:56:13,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-14 00:56:13,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 00:56:13,638 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 00:56:13,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 00:56:13,835 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 00:56:13,851 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 00:56:13,852 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-14 00:56:13,852 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-14 00:56:13,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:56:13 BoogieIcfgContainer [2024-10-14 00:56:13,855 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 00:56:13,856 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 00:56:13,856 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 00:56:13,856 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 00:56:13,857 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:55:40" (3/4) ... [2024-10-14 00:56:13,862 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 00:56:13,875 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-10-14 00:56:13,876 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-14 00:56:13,876 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 00:56:13,876 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 00:56:13,982 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 00:56:13,983 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 00:56:13,983 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 00:56:13,984 INFO L158 Benchmark]: Toolchain (without parser) took 51630.45ms. Allocated memory is still 77.6MB. Free memory was 45.6MB in the beginning and 35.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-10-14 00:56:13,984 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:56:13,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.03ms. Allocated memory is still 77.6MB. Free memory was 45.5MB in the beginning and 51.2MB in the end (delta: -5.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-10-14 00:56:13,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.83ms. Allocated memory is still 77.6MB. Free memory was 51.2MB in the beginning and 48.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:56:13,985 INFO L158 Benchmark]: Boogie Preprocessor took 92.39ms. Allocated memory is still 77.6MB. Free memory was 48.8MB in the beginning and 45.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 00:56:13,985 INFO L158 Benchmark]: RCFGBuilder took 17279.77ms. Allocated memory is still 77.6MB. Free memory was 45.1MB in the beginning and 47.5MB in the end (delta: -2.4MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-10-14 00:56:13,985 INFO L158 Benchmark]: TraceAbstraction took 33727.83ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 41.6MB in the end (delta: 5.5MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-10-14 00:56:13,985 INFO L158 Benchmark]: Witness Printer took 126.67ms. Allocated memory is still 77.6MB. Free memory was 41.1MB in the beginning and 35.4MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 00:56:13,989 INFO L338 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 54.5MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.03ms. Allocated memory is still 77.6MB. Free memory was 45.5MB in the beginning and 51.2MB in the end (delta: -5.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.83ms. Allocated memory is still 77.6MB. Free memory was 51.2MB in the beginning and 48.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.39ms. Allocated memory is still 77.6MB. Free memory was 48.8MB in the beginning and 45.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 17279.77ms. Allocated memory is still 77.6MB. Free memory was 45.1MB in the beginning and 47.5MB in the end (delta: -2.4MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 33727.83ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 41.6MB in the end (delta: 5.5MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 126.67ms. Allocated memory is still 77.6MB. Free memory was 41.1MB in the beginning and 35.4MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 123]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 30.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 29.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 64 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 5 QuantifiedInterpolants, 138 SizeOfPredicates, 5 NumberOfNonLiveVariables, 175 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-10-14 00:56:14,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE