./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1271b.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 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:54:16,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:54:16,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:54:16,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:54:16,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:54:16,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:54:16,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:54:16,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:54:16,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:54:16,812 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:54:16,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:54:16,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:54:16,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:54:16,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:54:16,815 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:54:16,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:54:16,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:54:16,816 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:54:16,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:54:16,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:54:16,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:54:16,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:54:16,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:54:16,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:54:16,820 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:54:16,823 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:54:16,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:54:16,824 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:54:16,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:54:16,824 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:54:16,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:54:16,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:54:16,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:54:16,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:54:16,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:54:16,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:54:16,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:54:16,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:54:16,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:54:16,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:54:16,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:54:16,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:54:16,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 [2024-11-18 11:54:17,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:54:17,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:54:17,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:54:17,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:54:17,084 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:54:17,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2024-11-18 11:54:18,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:54:18,828 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:54:18,829 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2024-11-18 11:54:18,844 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199edf42b/830bd6a4ea914ea1801a3c25b996a38b/FLAGbd249be3b [2024-11-18 11:54:19,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199edf42b/830bd6a4ea914ea1801a3c25b996a38b [2024-11-18 11:54:19,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:54:19,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:54:19,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:54:19,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:54:19,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:54:19,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@317a74a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19, skipping insertion in model container [2024-11-18 11:54:19,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,239 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:54:19,509 WARN L250 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_1271b.c[4883,4896] [2024-11-18 11:54:19,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:54:19,526 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:54:19,579 WARN L250 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_1271b.c[4883,4896] [2024-11-18 11:54:19,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:54:19,598 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:54:19,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19 WrapperNode [2024-11-18 11:54:19,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:54:19,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:54:19,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:54:19,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:54:19,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,660 INFO L138 Inliner]: procedures = 19, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 277 [2024-11-18 11:54:19,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:54:19,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:54:19,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:54:19,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:54:19,676 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,703 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-18 11:54:19,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:54:19,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:54:19,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:54:19,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:54:19,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:54:19,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:54:19,807 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) [2024-11-18 11:54:19,810 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 [2024-11-18 11:54:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:54:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:54:19,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 11:54:19,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 11:54:19,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 11:54:19,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 11:54:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-18 11:54:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-18 11:54:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-18 11:54:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-18 11:54:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-18 11:54:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-18 11:54:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-18 11:54:19,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-18 11:54:19,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-18 11:54:19,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-18 11:54:19,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-18 11:54:19,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 11:54:19,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 11:54:19,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 11:54:19,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-18 11:54:19,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-18 11:54:19,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-18 11:54:19,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-18 11:54:19,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-18 11:54:19,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-18 11:54:19,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-18 11:54:19,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-18 11:54:19,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-18 11:54:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:54:19,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:54:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 11:54:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 11:54:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 11:54:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-18 11:54:19,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-18 11:54:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-18 11:54:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-18 11:54:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-18 11:54:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-18 11:54:19,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-18 11:54:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-18 11:54:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-18 11:54:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-18 11:54:19,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-18 11:54:19,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-18 11:54:19,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-18 11:54:19,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-18 11:54:19,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:54:19,932 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-18 11:54:19,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-18 11:54:20,156 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:54:20,158 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:54:20,655 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-18 11:54:20,655 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:54:20,669 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:54:20,669 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-18 11:54:20,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:20 BoogieIcfgContainer [2024-11-18 11:54:20,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:54:20,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:54:20,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:54:20,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:54:20,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:54:19" (1/3) ... [2024-11-18 11:54:20,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ca2a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:20, skipping insertion in model container [2024-11-18 11:54:20,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (2/3) ... [2024-11-18 11:54:20,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ca2a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:20, skipping insertion in model container [2024-11-18 11:54:20,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:20" (3/3) ... [2024-11-18 11:54:20,679 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271b.c [2024-11-18 11:54:20,696 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:54:20,696 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:54:20,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:54:20,757 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;@1d5e2e77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:54:20,757 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:54:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 94 states have (on average 1.6702127659574468) internal successors, (157), 95 states have internal predecessors, (157), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 11:54:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-18 11:54:20,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:20,768 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:54:20,769 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:20,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:20,775 INFO L85 PathProgramCache]: Analyzing trace with hash -941852800, now seen corresponding path program 1 times [2024-11-18 11:54:20,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:54:20,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459551701] [2024-11-18 11:54:20,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:20,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:54:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:20,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:20,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:54:20,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459551701] [2024-11-18 11:54:20,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459551701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:20,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:20,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:54:20,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088694091] [2024-11-18 11:54:20,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:20,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:54:20,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:54:20,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:54:20,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:54:20,989 INFO L87 Difference]: Start difference. First operand has 99 states, 94 states have (on average 1.6702127659574468) internal successors, (157), 95 states have internal predecessors, (157), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:54:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:21,018 INFO L93 Difference]: Finished difference Result 196 states and 322 transitions. [2024-11-18 11:54:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:54:21,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-18 11:54:21,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:21,028 INFO L225 Difference]: With dead ends: 196 [2024-11-18 11:54:21,028 INFO L226 Difference]: Without dead ends: 95 [2024-11-18 11:54:21,031 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 [2024-11-18 11:54:21,035 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:54:21,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:54:21,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-18 11:54:21,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-18 11:54:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 11:54:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 120 transitions. [2024-11-18 11:54:21,095 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 120 transitions. Word has length 18 [2024-11-18 11:54:21,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:21,095 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 120 transitions. [2024-11-18 11:54:21,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:54:21,097 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 120 transitions. [2024-11-18 11:54:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 11:54:21,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:21,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:54:21,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:54:21,099 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:21,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:21,100 INFO L85 PathProgramCache]: Analyzing trace with hash 327064178, now seen corresponding path program 1 times [2024-11-18 11:54:21,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:54:21,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135108968] [2024-11-18 11:54:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:21,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:54:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:54:21,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 11:54:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:54:21,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 11:54:21,372 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 11:54:21,375 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:54:21,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:54:21,381 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 11:54:21,409 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:54:21,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:54:21 BoogieIcfgContainer [2024-11-18 11:54:21,414 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:54:21,415 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:54:21,415 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:54:21,415 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:54:21,416 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:20" (3/4) ... [2024-11-18 11:54:21,419 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 11:54:21,420 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:54:21,421 INFO L158 Benchmark]: Toolchain (without parser) took 2227.12ms. Allocated memory is still 153.1MB. Free memory was 84.5MB in the beginning and 51.3MB in the end (delta: 33.1MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,421 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:54:21,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.01ms. Allocated memory is still 153.1MB. Free memory was 84.2MB in the beginning and 68.3MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.99ms. Allocated memory is still 153.1MB. Free memory was 68.3MB in the beginning and 65.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,424 INFO L158 Benchmark]: Boogie Preprocessor took 82.09ms. Allocated memory is still 153.1MB. Free memory was 65.8MB in the beginning and 60.9MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,425 INFO L158 Benchmark]: RCFGBuilder took 925.90ms. Allocated memory is still 153.1MB. Free memory was 60.7MB in the beginning and 93.3MB in the end (delta: -32.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,425 INFO L158 Benchmark]: TraceAbstraction took 742.69ms. Allocated memory is still 153.1MB. Free memory was 92.6MB in the beginning and 52.1MB in the end (delta: 40.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,425 INFO L158 Benchmark]: Witness Printer took 5.05ms. Allocated memory is still 153.1MB. Free memory was 52.1MB in the beginning and 51.3MB in the end (delta: 715.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:54:21,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.01ms. Allocated memory is still 153.1MB. Free memory was 84.2MB in the beginning and 68.3MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.99ms. Allocated memory is still 153.1MB. Free memory was 68.3MB in the beginning and 65.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.09ms. Allocated memory is still 153.1MB. Free memory was 65.8MB in the beginning and 60.9MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 925.90ms. Allocated memory is still 153.1MB. Free memory was 60.7MB in the beginning and 93.3MB in the end (delta: -32.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * TraceAbstraction took 742.69ms. Allocated memory is still 153.1MB. Free memory was 92.6MB in the beginning and 52.1MB in the end (delta: 40.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.05ms. Allocated memory is still 153.1MB. Free memory was 52.1MB in the beginning and 51.3MB in the end (delta: 715.9kB). 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: 241]: 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 213, overapproximation of someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L234] float x = __VERIFIER_nondet_float(); [L235] float y = 0.0f / 0.0f; [L237] CALL isfinite_float(x) [L217] __int32_t ix; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450971] [L219] ieee_float_shape_type gf_u; [L220] gf_u.value = (x) [L221] EXPR gf_u.word [L221] (ix) = gf_u.word [L223] ix &= 0x7fffffff [L224] return (((ix) < 0x7f800000L)); VAL [\result=1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450971] [L237] RET isfinite_float(x) [L237] COND TRUE isfinite_float(x) [L238] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450971, y=6442450972] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450971, y=6442450972] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [ha=0, hb=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450971, y=6442450972] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [a=6442450972, b=6442450971, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [a=6442450969, b=6442450973, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L238] RET, EXPR __ieee754_hypotf(x, y) [L238] float res = __ieee754_hypotf(x, y); [L240] CALL, EXPR isnan_float(res) [L213] return x != x; VAL [\result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L240] RET, EXPR isnan_float(res) [L240] COND TRUE !isnan_float(res) [L241] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 125 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 125 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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 [2024-11-18 11:54:21,496 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1271b.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 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:54:23,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:54:23,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 11:54:23,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:54:23,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:54:23,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:54:23,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:54:23,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:54:23,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:54:23,908 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:54:23,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:54:23,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:54:23,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:54:23,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:54:23,914 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:54:23,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:54:23,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:54:23,915 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:54:23,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:54:23,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:54:23,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:54:23,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:54:23,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:54:23,920 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 11:54:23,921 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 11:54:23,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:54:23,921 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 11:54:23,921 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:54:23,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:54:23,922 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:54:23,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:54:23,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:54:23,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:54:23,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:54:23,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:54:23,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:54:23,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:54:23,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:54:23,926 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 11:54:23,926 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 11:54:23,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:54:23,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:54:23,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:54:23,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:54:23,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 [2024-11-18 11:54:24,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:54:24,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:54:24,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:54:24,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:54:24,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:54:24,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2024-11-18 11:54:25,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:54:26,220 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:54:26,222 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2024-11-18 11:54:26,235 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf51f6b3/b539b64ae60848328dc39f7397d4b907/FLAG32ccd1dbc [2024-11-18 11:54:26,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf51f6b3/b539b64ae60848328dc39f7397d4b907 [2024-11-18 11:54:26,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:54:26,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:54:26,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:54:26,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:54:26,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:54:26,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187061f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26, skipping insertion in model container [2024-11-18 11:54:26,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:54:26,626 WARN L250 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_1271b.c[4883,4896] [2024-11-18 11:54:26,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:54:26,654 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:54:26,722 WARN L250 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_1271b.c[4883,4896] [2024-11-18 11:54:26,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:54:26,745 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:54:26,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26 WrapperNode [2024-11-18 11:54:26,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:54:26,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:54:26,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:54:26,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:54:26,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,815 INFO L138 Inliner]: procedures = 22, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2024-11-18 11:54:26,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:54:26,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:54:26,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:54:26,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:54:26,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,887 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-18 11:54:26,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,923 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:54:26,957 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:54:26,957 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:54:26,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:54:26,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:54:26,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:54:26,996 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) [2024-11-18 11:54:26,998 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 [2024-11-18 11:54:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:54:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 11:54:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-18 11:54:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-18 11:54:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-18 11:54:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-18 11:54:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-18 11:54:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-18 11:54:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-18 11:54:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-18 11:54:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-18 11:54:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-18 11:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-18 11:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-18 11:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-18 11:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-18 11:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-18 11:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-18 11:54:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-18 11:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-18 11:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-18 11:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-18 11:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-18 11:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-18 11:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-18 11:54:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-18 11:54:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-18 11:54:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-18 11:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-18 11:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-18 11:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-18 11:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-18 11:54:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-18 11:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-18 11:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-18 11:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-18 11:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-18 11:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-18 11:54:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-18 11:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-18 11:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-18 11:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-18 11:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-18 11:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-18 11:54:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-18 11:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:54:27,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-18 11:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-18 11:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-18 11:54:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-18 11:54:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-18 11:54:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-18 11:54:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-18 11:54:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-18 11:54:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-18 11:54:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-18 11:54:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-18 11:54:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-18 11:54:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-18 11:54:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-18 11:54:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-18 11:54:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-18 11:54:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-18 11:54:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-18 11:54:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-18 11:54:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-18 11:54:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-18 11:54:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-18 11:54:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-18 11:54:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-18 11:54:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-18 11:54:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-18 11:54:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:54:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-18 11:54:27,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-18 11:54:27,324 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:54:27,327 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:54:30,284 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-18 11:54:30,285 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:54:30,303 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:54:30,304 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-18 11:54:30,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:30 BoogieIcfgContainer [2024-11-18 11:54:30,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:54:30,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:54:30,310 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:54:30,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:54:30,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:54:26" (1/3) ... [2024-11-18 11:54:30,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570e894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:30, skipping insertion in model container [2024-11-18 11:54:30,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (2/3) ... [2024-11-18 11:54:30,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570e894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:30, skipping insertion in model container [2024-11-18 11:54:30,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:30" (3/3) ... [2024-11-18 11:54:30,317 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271b.c [2024-11-18 11:54:30,348 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:54:30,348 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:54:30,417 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:54:30,422 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;@dd85274, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:54:30,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:54:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 11:54:30,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-18 11:54:30,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:30,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:54:30,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:30,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:30,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1909357408, now seen corresponding path program 1 times [2024-11-18 11:54:30,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:30,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934822578] [2024-11-18 11:54:30,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:30,456 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 [2024-11-18 11:54:30,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:30,459 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) [2024-11-18 11:54:30,477 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 [2024-11-18 11:54:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:30,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 11:54:30,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:30,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:30,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:30,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:30,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934822578] [2024-11-18 11:54:30,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934822578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:30,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:30,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:54:30,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792736149] [2024-11-18 11:54:30,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:30,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:54:30,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:30,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:54:30,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:54:30,763 INFO L87 Difference]: Start difference. First operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:54:30,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:30,805 INFO L93 Difference]: Finished difference Result 182 states and 300 transitions. [2024-11-18 11:54:30,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:54:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-18 11:54:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:30,814 INFO L225 Difference]: With dead ends: 182 [2024-11-18 11:54:30,815 INFO L226 Difference]: Without dead ends: 88 [2024-11-18 11:54:30,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:54:30,821 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:54:30,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:54:30,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-18 11:54:30,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-18 11:54:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-18 11:54:30,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 110 transitions. [2024-11-18 11:54:30,868 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 110 transitions. Word has length 18 [2024-11-18 11:54:30,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:30,869 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 110 transitions. [2024-11-18 11:54:30,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:54:30,870 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 110 transitions. [2024-11-18 11:54:30,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 11:54:30,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:30,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:54:30,877 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 [2024-11-18 11:54:31,072 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 [2024-11-18 11:54:31,073 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:31,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1814558905, now seen corresponding path program 1 times [2024-11-18 11:54:31,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:31,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119551750] [2024-11-18 11:54:31,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:31,076 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 [2024-11-18 11:54:31,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:31,079 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) [2024-11-18 11:54:31,081 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 [2024-11-18 11:54:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:31,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-18 11:54:31,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:31,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-18 11:54:31,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-18 11:54:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:32,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:32,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:32,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119551750] [2024-11-18 11:54:32,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119551750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:32,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:32,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 11:54:32,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922688174] [2024-11-18 11:54:32,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:32,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 11:54:32,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:32,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 11:54:32,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-18 11:54:32,811 INFO L87 Difference]: Start difference. First operand 88 states and 110 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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) [2024-11-18 11:54:34,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:34,985 INFO L93 Difference]: Finished difference Result 107 states and 134 transitions. [2024-11-18 11:54:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 11:54:34,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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 23 [2024-11-18 11:54:34,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:34,987 INFO L225 Difference]: With dead ends: 107 [2024-11-18 11:54:34,987 INFO L226 Difference]: Without dead ends: 38 [2024-11-18 11:54:34,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-11-18 11:54:34,989 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 47 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 11:54:34,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 139 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 11:54:34,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-18 11:54:34,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-18 11:54:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 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) [2024-11-18 11:54:34,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2024-11-18 11:54:34,996 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 23 [2024-11-18 11:54:34,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:34,996 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2024-11-18 11:54:34,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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) [2024-11-18 11:54:34,997 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-11-18 11:54:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 11:54:34,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:34,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:54:35,005 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 [2024-11-18 11:54:35,201 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 [2024-11-18 11:54:35,202 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:35,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:35,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1642693520, now seen corresponding path program 1 times [2024-11-18 11:54:35,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:35,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183868368] [2024-11-18 11:54:35,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:35,204 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 [2024-11-18 11:54:35,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:35,207 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) [2024-11-18 11:54:35,208 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 [2024-11-18 11:54:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:35,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-18 11:54:35,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:36,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:36,433 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:36,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:36,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183868368] [2024-11-18 11:54:36,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183868368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:36,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:36,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 11:54:36,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619743530] [2024-11-18 11:54:36,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:36,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 11:54:36,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:36,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 11:54:36,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 11:54:36,444 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2024-11-18 11:54:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:37,151 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2024-11-18 11:54:37,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 11:54:37,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 28 [2024-11-18 11:54:37,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:37,153 INFO L225 Difference]: With dead ends: 44 [2024-11-18 11:54:37,153 INFO L226 Difference]: Without dead ends: 29 [2024-11-18 11:54:37,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-18 11:54:37,155 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 11:54:37,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 136 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 11:54:37,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-18 11:54:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-18 11:54:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0) internal successors, (28), 28 states have internal predecessors, (28), 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) [2024-11-18 11:54:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2024-11-18 11:54:37,160 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 28 [2024-11-18 11:54:37,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:37,160 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2024-11-18 11:54:37,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2024-11-18 11:54:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2024-11-18 11:54:37,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 11:54:37,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:37,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:54:37,170 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 (4)] Ended with exit code 0 [2024-11-18 11:54:37,362 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 [2024-11-18 11:54:37,363 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:37,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1585435218, now seen corresponding path program 1 times [2024-11-18 11:54:37,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:37,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336757394] [2024-11-18 11:54:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:37,364 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 [2024-11-18 11:54:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:37,367 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2024-11-18 11:54:37,368 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 (5)] Waiting until timeout for monitored process [2024-11-18 11:54:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:37,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-18 11:54:37,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:39,967 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:39,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:39,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336757394] [2024-11-18 11:54:39,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336757394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:39,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:39,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 11:54:39,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977473650] [2024-11-18 11:54:39,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:39,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 11:54:39,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:39,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 11:54:39,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-18 11:54:39,969 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2024-11-18 11:54:43,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:43,438 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2024-11-18 11:54:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 11:54:43,438 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 28 [2024-11-18 11:54:43,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:43,438 INFO L225 Difference]: With dead ends: 29 [2024-11-18 11:54:43,438 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 11:54:43,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-11-18 11:54:43,440 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 11:54:43,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 97 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 11:54:43,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 11:54:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 11:54:43,441 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) [2024-11-18 11:54:43,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 11:54:43,442 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-18 11:54:43,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:43,442 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 11:54:43,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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) [2024-11-18 11:54:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 11:54:43,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 11:54:43,445 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:54:43,455 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 (5)] Ended with exit code 0 [2024-11-18 11:54:43,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 [2024-11-18 11:54:43,649 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-18 11:54:43,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 11:54:44,218 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:54:44,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:54:44 BoogieIcfgContainer [2024-11-18 11:54:44,247 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:54:44,247 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:54:44,249 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:54:44,249 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:54:44,250 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:30" (3/4) ... [2024-11-18 11:54:44,252 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 11:54:44,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2024-11-18 11:54:44,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-18 11:54:44,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-18 11:54:44,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 11:54:44,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 11:54:44,365 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 11:54:44,365 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 11:54:44,366 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:54:44,367 INFO L158 Benchmark]: Toolchain (without parser) took 18105.78ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 45.4MB in the beginning and 40.6MB in the end (delta: 4.8MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,368 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:54:44,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.30ms. Allocated memory is still 73.4MB. Free memory was 45.2MB in the beginning and 48.4MB in the end (delta: -3.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.78ms. Allocated memory is still 73.4MB. Free memory was 48.4MB in the beginning and 45.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,368 INFO L158 Benchmark]: Boogie Preprocessor took 139.90ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 40.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,369 INFO L158 Benchmark]: RCFGBuilder took 3348.98ms. Allocated memory is still 73.4MB. Free memory was 40.7MB in the beginning and 29.0MB in the end (delta: 11.7MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,369 INFO L158 Benchmark]: TraceAbstraction took 13938.97ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 28.3MB in the beginning and 45.6MB in the end (delta: -17.3MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,370 INFO L158 Benchmark]: Witness Printer took 118.63ms. Allocated memory is still 92.3MB. Free memory was 45.6MB in the beginning and 40.6MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.30ms. Allocated memory is still 73.4MB. Free memory was 45.2MB in the beginning and 48.4MB in the end (delta: -3.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.78ms. Allocated memory is still 73.4MB. Free memory was 48.4MB in the beginning and 45.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 139.90ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 40.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3348.98ms. Allocated memory is still 73.4MB. Free memory was 40.7MB in the beginning and 29.0MB in the end (delta: 11.7MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13938.97ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 28.3MB in the beginning and 45.6MB in the end (delta: -17.3MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 118.63ms. Allocated memory is still 92.3MB. Free memory was 45.6MB in the beginning and 40.6MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 241]: 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 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 487 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 317 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 370 IncrementalHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 170 mSDtfsCounter, 370 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 37 QuantifiedInterpolants, 1189 SizeOfPredicates, 13 NumberOfNonLiveVariables, 387 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 16]: Procedure Contract for __ieee754_sqrtf Derived contract for procedure __ieee754_sqrtf. Requires: 0 Ensures: (0 && ((one_sqrt == \old(one_sqrt)) && (tiny_sqrt == \old(tiny_sqrt)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 11:54:44,499 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 Writing output log to file Ultimate.log Result: TRUE