./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_1270a.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 cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:22:08,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:22:08,876 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 18:22:08,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:22:08,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:22:08,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:22:08,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:22:08,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:22:08,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:22:08,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:22:08,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:22:08,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:22:08,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:22:08,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:22:08,904 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:22:08,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:22:08,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:22:08,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:22:08,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 18:22:08,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:22:08,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:22:08,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:22:08,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:22:08,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:22:08,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:22:08,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:22:08,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:22:08,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:22:08,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:22:08,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:22:08,908 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:22:08,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:22:08,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:08,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:22:08,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:22:08,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:22:08,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 18:22:08,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 18:22:08,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:22:08,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:22:08,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:22:08,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:22:08,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2024-11-11 18:22:09,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:22:09,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:22:09,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:22:09,165 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:22:09,165 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:22:09,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2024-11-11 18:22:10,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:22:10,741 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:22:10,745 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2024-11-11 18:22:10,757 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbeaa0e8c/7dfe7d17af2844099dd21a4570ea9998/FLAG19e46458b [2024-11-11 18:22:10,776 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbeaa0e8c/7dfe7d17af2844099dd21a4570ea9998 [2024-11-11 18:22:10,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:22:10,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:22:10,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:10,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:22:10,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:22:10,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:10" (1/1) ... [2024-11-11 18:22:10,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224871a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:10, skipping insertion in model container [2024-11-11 18:22:10,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:10" (1/1) ... [2024-11-11 18:22:10,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:22:11,094 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_1270a.c[4702,4715] [2024-11-11 18:22:11,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:11,109 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:22:11,158 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_1270a.c[4702,4715] [2024-11-11 18:22:11,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:11,182 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:22:11,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11 WrapperNode [2024-11-11 18:22:11,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:11,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:11,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:22:11,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:22:11,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,229 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2024-11-11 18:22:11,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:11,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:22:11,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:22:11,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:22:11,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,276 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]. [2024-11-11 18:22:11,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:22:11,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:22:11,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:22:11,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:22:11,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (1/1) ... [2024-11-11 18:22:11,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:11,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:22:11,359 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) [2024-11-11 18:22:11,362 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 [2024-11-11 18:22:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:22:11,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 18:22:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 18:22:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 18:22:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 18:22:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 18:22:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 18:22:11,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-11 18:22:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-11 18:22:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-11 18:22:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-11 18:22:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-11 18:22:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-11 18:22:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-11 18:22:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-11 18:22:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-11 18:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 18:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 18:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-11 18:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-11 18:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-11 18:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-11 18:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-11 18:22:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-11 18:22:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-11 18:22:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-11 18:22:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-11 18:22:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-11 18:22:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-11 18:22:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-11 18:22:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-11 18:22:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-11 18:22:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-11 18:22:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-11 18:22:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-11 18:22:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-11 18:22:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-11 18:22:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-11 18:22:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-11 18:22:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-11 18:22:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-11 18:22:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-11 18:22:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:22:11,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:22:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 18:22:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 18:22:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-11 18:22:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-11 18:22:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-11 18:22:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-11 18:22:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-11 18:22:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-11 18:22:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-11 18:22:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 18:22:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-11 18:22:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-11 18:22:11,641 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:22:11,644 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:22:12,041 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-11 18:22:12,041 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:22:12,058 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:22:12,060 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-11 18:22:12,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:12 BoogieIcfgContainer [2024-11-11 18:22:12,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:22:12,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:22:12,065 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:22:12,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:22:12,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:22:10" (1/3) ... [2024-11-11 18:22:12,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6a8254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:12, skipping insertion in model container [2024-11-11 18:22:12,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:11" (2/3) ... [2024-11-11 18:22:12,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6a8254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:12, skipping insertion in model container [2024-11-11 18:22:12,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:12" (3/3) ... [2024-11-11 18:22:12,072 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2024-11-11 18:22:12,090 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:22:12,091 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:22:12,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:22:12,156 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;@463f01c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:22:12,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:22:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 91 states have (on average 1.6813186813186813) internal successors, (153), 92 states have internal predecessors, (153), 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) [2024-11-11 18:22:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-11 18:22:12,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:12,172 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:12,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:12,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:12,177 INFO L85 PathProgramCache]: Analyzing trace with hash -575632410, now seen corresponding path program 1 times [2024-11-11 18:22:12,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:22:12,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312743504] [2024-11-11 18:22:12,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:12,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:22:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:12,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:12,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 18:22:12,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312743504] [2024-11-11 18:22:12,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312743504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:12,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:12,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:22:12,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118964010] [2024-11-11 18:22:12,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:12,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:22:12,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 18:22:12,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:22:12,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:12,409 INFO L87 Difference]: Start difference. First operand has 96 states, 91 states have (on average 1.6813186813186813) internal successors, (153), 92 states have internal predecessors, (153), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:12,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:12,457 INFO L93 Difference]: Finished difference Result 190 states and 314 transitions. [2024-11-11 18:22:12,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:22:12,464 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-11 18:22:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:12,486 INFO L225 Difference]: With dead ends: 190 [2024-11-11 18:22:12,486 INFO L226 Difference]: Without dead ends: 93 [2024-11-11 18:22:12,489 INFO L434 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 [2024-11-11 18:22:12,492 INFO L435 NwaCegarLoop]: 121 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, 121 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 [2024-11-11 18:22:12,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:22:12,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-11 18:22:12,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-11 18:22:12,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 89 states have internal predecessors, (114), 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) [2024-11-11 18:22:12,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2024-11-11 18:22:12,562 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 16 [2024-11-11 18:22:12,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:12,563 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2024-11-11 18:22:12,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2024-11-11 18:22:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-11 18:22:12,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:12,564 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:12,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 18:22:12,564 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:12,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:12,571 INFO L85 PathProgramCache]: Analyzing trace with hash 780916204, now seen corresponding path program 1 times [2024-11-11 18:22:12,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:22:12,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860129664] [2024-11-11 18:22:12,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:12,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:22:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:22:12,666 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-11 18:22:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:22:12,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-11 18:22:12,764 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-11 18:22:12,766 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:22:12,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 18:22:12,771 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-11 18:22:12,793 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:22:12,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:22:12 BoogieIcfgContainer [2024-11-11 18:22:12,798 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:22:12,799 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:22:12,799 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:22:12,799 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:22:12,800 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:12" (3/4) ... [2024-11-11 18:22:12,802 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-11 18:22:12,803 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:22:12,804 INFO L158 Benchmark]: Toolchain (without parser) took 2022.23ms. Allocated memory was 163.6MB in the beginning and 230.7MB in the end (delta: 67.1MB). Free memory was 88.4MB in the beginning and 177.7MB in the end (delta: -89.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:12,804 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 113.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:12,805 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.13ms. Allocated memory is still 163.6MB. Free memory was 88.0MB in the beginning and 72.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-11 18:22:12,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.31ms. Allocated memory is still 163.6MB. Free memory was 72.2MB in the beginning and 69.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:12,807 INFO L158 Benchmark]: Boogie Preprocessor took 90.86ms. Allocated memory is still 163.6MB. Free memory was 69.8MB in the beginning and 64.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-11 18:22:12,807 INFO L158 Benchmark]: RCFGBuilder took 739.46ms. Allocated memory was 163.6MB in the beginning and 230.7MB in the end (delta: 67.1MB). Free memory was 64.8MB in the beginning and 175.8MB in the end (delta: -111.0MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-11 18:22:12,807 INFO L158 Benchmark]: TraceAbstraction took 734.22ms. Allocated memory is still 230.7MB. Free memory was 175.8MB in the beginning and 177.7MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:12,807 INFO L158 Benchmark]: Witness Printer took 3.71ms. Allocated memory is still 230.7MB. Free memory is still 177.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:12,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 113.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.13ms. Allocated memory is still 163.6MB. Free memory was 88.0MB in the beginning and 72.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.31ms. Allocated memory is still 163.6MB. Free memory was 72.2MB in the beginning and 69.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.86ms. Allocated memory is still 163.6MB. Free memory was 69.8MB in the beginning and 64.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 739.46ms. Allocated memory was 163.6MB in the beginning and 230.7MB in the end (delta: 67.1MB). Free memory was 64.8MB in the beginning and 175.8MB in the end (delta: -111.0MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 734.22ms. Allocated memory is still 230.7MB. Free memory was 175.8MB in the beginning and 177.7MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.71ms. Allocated memory is still 230.7MB. Free memory is still 177.7MB. 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: 236]: 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 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] [L231] float x = 1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L233] 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=6442450973, y=6442450971] [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=6442450973, y=6442450971] [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=6442450973, y=6442450971] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [a=6442450971, b=6442450973, 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=6442450972, b=6442450969, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L233] RET, EXPR __ieee754_hypotf(x, y) [L233] float res = __ieee754_hypotf(x, y); [L235] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450970] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); VAL [\result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450970] [L235] RET, EXPR isinf_float(res) [L235] COND TRUE !isinf_float(res) [L236] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 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, 121 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, 121 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=96occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 [2024-11-11 18:22:12,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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_1270a.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 cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:22:14,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:22:15,072 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-11 18:22:15,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:22:15,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:22:15,107 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:22:15,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:22:15,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:22:15,108 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:22:15,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:22:15,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:22:15,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:22:15,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:22:15,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:22:15,113 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:22:15,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:22:15,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:22:15,114 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:22:15,114 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:22:15,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:22:15,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:22:15,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:22:15,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:22:15,116 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-11 18:22:15,116 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-11 18:22:15,116 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:22:15,117 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-11 18:22:15,117 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:22:15,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:22:15,117 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:22:15,117 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:22:15,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:22:15,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:22:15,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:22:15,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:15,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:22:15,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:22:15,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:22:15,120 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-11 18:22:15,120 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-11 18:22:15,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:22:15,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:22:15,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:22:15,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:22:15,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2024-11-11 18:22:15,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:22:15,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:22:15,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:22:15,447 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:22:15,448 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:22:15,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2024-11-11 18:22:16,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:22:17,171 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:22:17,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2024-11-11 18:22:17,192 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9caf1bab9/5f12e36414a64679acc25fc922914e3d/FLAGaec9e425c [2024-11-11 18:22:17,540 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9caf1bab9/5f12e36414a64679acc25fc922914e3d [2024-11-11 18:22:17,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:22:17,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:22:17,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:17,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:22:17,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:22:17,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589a3780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17, skipping insertion in model container [2024-11-11 18:22:17,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:22:17,771 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_1270a.c[4702,4715] [2024-11-11 18:22:17,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:17,788 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:22:17,829 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_1270a.c[4702,4715] [2024-11-11 18:22:17,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:17,849 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:22:17,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17 WrapperNode [2024-11-11 18:22:17,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:17,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:17,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:22:17,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:22:17,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,902 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2024-11-11 18:22:17,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:17,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:22:17,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:22:17,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:22:17,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,944 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]. [2024-11-11 18:22:17,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,976 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:18,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:18,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:22:18,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:22:18,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:22:18,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:22:18,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:18,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:18,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:22:18,047 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) [2024-11-11 18:22:18,051 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 [2024-11-11 18:22:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:22:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-11 18:22:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-11 18:22:18,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-11 18:22:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-11 18:22:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-11 18:22:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-11 18:22:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-11 18:22:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-11 18:22:18,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-11 18:22:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-11 18:22:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-11 18:22:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-11 18:22:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-11 18:22:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-11 18:22:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-11 18:22:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-11 18:22:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-11 18:22:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 18:22:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-11 18:22:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-11 18:22:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-11 18:22:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-11 18:22:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-11 18:22:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-11 18:22:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-11 18:22:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-11 18:22:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-11 18:22:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-11 18:22:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-11 18:22:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-11 18:22:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-11 18:22:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-11 18:22:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-11 18:22:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-11 18:22:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-11 18:22:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-11 18:22:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-11 18:22:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-11 18:22:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-11 18:22:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-11 18:22:18,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-11 18:22:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-11 18:22:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-11 18:22:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-11 18:22:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-11 18:22:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:22:18,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-11 18:22:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-11 18:22:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-11 18:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-11 18:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-11 18:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-11 18:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-11 18:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-11 18:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 18:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-11 18:22:18,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-11 18:22:18,338 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:22:18,340 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:22:21,103 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-11 18:22:21,104 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:22:21,118 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:22:21,119 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-11 18:22:21,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:21 BoogieIcfgContainer [2024-11-11 18:22:21,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:22:21,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:22:21,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:22:21,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:22:21,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:22:17" (1/3) ... [2024-11-11 18:22:21,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ed3d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:21, skipping insertion in model container [2024-11-11 18:22:21,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:17" (2/3) ... [2024-11-11 18:22:21,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ed3d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:21, skipping insertion in model container [2024-11-11 18:22:21,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:21" (3/3) ... [2024-11-11 18:22:21,127 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2024-11-11 18:22:21,142 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:22:21,143 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:22:21,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:22:21,216 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;@7908cfed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:22:21,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:22:21,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 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) [2024-11-11 18:22:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-11 18:22:21,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:21,226 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:21,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:21,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:21,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1703390490, now seen corresponding path program 1 times [2024-11-11 18:22:21,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:21,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590214145] [2024-11-11 18:22:21,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:21,246 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 [2024-11-11 18:22:21,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:21,252 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) [2024-11-11 18:22:21,254 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 [2024-11-11 18:22:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:21,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 18:22:21,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:21,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:21,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:21,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590214145] [2024-11-11 18:22:21,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590214145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:21,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:21,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:22:21,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897228712] [2024-11-11 18:22:21,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:21,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:22:21,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:21,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:22:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:21,499 INFO L87 Difference]: Start difference. First operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:21,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:21,534 INFO L93 Difference]: Finished difference Result 176 states and 292 transitions. [2024-11-11 18:22:21,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:22:21,538 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-11 18:22:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:21,547 INFO L225 Difference]: With dead ends: 176 [2024-11-11 18:22:21,547 INFO L226 Difference]: Without dead ends: 86 [2024-11-11 18:22:21,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:21,554 INFO L435 NwaCegarLoop]: 111 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, 111 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 [2024-11-11 18:22:21,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:22:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-11 18:22:21,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-11 18:22:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 82 states have internal predecessors, (104), 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) [2024-11-11 18:22:21,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2024-11-11 18:22:21,598 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 16 [2024-11-11 18:22:21,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:21,599 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2024-11-11 18:22:21,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:21,600 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2024-11-11 18:22:21,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-11 18:22:21,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:21,601 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:21,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-11 18:22:21,801 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 [2024-11-11 18:22:21,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:21,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:21,803 INFO L85 PathProgramCache]: Analyzing trace with hash -384015085, now seen corresponding path program 1 times [2024-11-11 18:22:21,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:21,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7629831] [2024-11-11 18:22:21,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:21,804 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 [2024-11-11 18:22:21,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:21,830 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) [2024-11-11 18:22:21,839 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 [2024-11-11 18:22:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:22,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-11 18:22:22,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:22,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:22,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:22,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:22,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7629831] [2024-11-11 18:22:22,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7629831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:22,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:22,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 18:22:22,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127771139] [2024-11-11 18:22:22,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:22,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 18:22:22,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:22,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 18:22:22,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 18:22:22,563 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2024-11-11 18:22:27,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:22:31,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:22:36,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:22:40,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:22:40,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:40,050 INFO L93 Difference]: Finished difference Result 184 states and 232 transitions. [2024-11-11 18:22:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 18:22:40,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2024-11-11 18:22:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:40,092 INFO L225 Difference]: With dead ends: 184 [2024-11-11 18:22:40,092 INFO L226 Difference]: Without dead ends: 115 [2024-11-11 18:22:40,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-11 18:22:40,094 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 38 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:40,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 410 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 4 Unknown, 0 Unchecked, 17.3s Time] [2024-11-11 18:22:40,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-11 18:22:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 95. [2024-11-11 18:22:40,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 91 states have internal predecessors, (113), 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) [2024-11-11 18:22:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2024-11-11 18:22:40,105 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 21 [2024-11-11 18:22:40,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:40,105 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2024-11-11 18:22:40,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2024-11-11 18:22:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2024-11-11 18:22:40,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-11 18:22:40,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:40,106 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:40,122 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 [2024-11-11 18:22:40,307 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 [2024-11-11 18:22:40,307 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:40,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:40,308 INFO L85 PathProgramCache]: Analyzing trace with hash -970821099, now seen corresponding path program 1 times [2024-11-11 18:22:40,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:40,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326203515] [2024-11-11 18:22:40,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:40,309 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 [2024-11-11 18:22:40,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:40,311 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) [2024-11-11 18:22:40,312 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 [2024-11-11 18:22:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:40,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-11 18:22:40,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:40,664 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 [2024-11-11 18:22:40,683 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 34 treesize of output 18 [2024-11-11 18:22:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:43,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:43,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:43,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326203515] [2024-11-11 18:22:43,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326203515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:43,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:43,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 18:22:43,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91183767] [2024-11-11 18:22:43,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:43,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 18:22:43,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:43,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 18:22:43,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-11 18:22:43,438 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 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) [2024-11-11 18:22:53,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-11 18:22:57,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:01,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:05,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:09,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-11 18:23:13,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:17,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:21,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-11 18:23:25,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:29,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-11 18:23:33,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-11 18:23:37,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:41,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:45,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:49,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []