./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1270d.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_1270d.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 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:22:15,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:22:15,312 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 18:22:15,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:22:15,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:22:15,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:22:15,343 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:22:15,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:22:15,344 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:22:15,345 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:22:15,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:22:15,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:22:15,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:22:15,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:22:15,347 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:22:15,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:22:15,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:22:15,348 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:22:15,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 18:22:15,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:22:15,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:22:15,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:22:15,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:22:15,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:22:15,351 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:22:15,351 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:22:15,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:22:15,352 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:22:15,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:22:15,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:22:15,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:22:15,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:22:15,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:15,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:22:15,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:22:15,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:22:15,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 18:22:15,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 18:22:15,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:22:15,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:22:15,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:22:15,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:22:15,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 [2024-11-11 18:22:15,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:22:15,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:22:15,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:22:15,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:22:15,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:22:15,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2024-11-11 18:22:17,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:22:17,492 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:22:17,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2024-11-11 18:22:17,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7487b45f8/b9caa7a9eca1490d83cef1584472f929/FLAG879826f49 [2024-11-11 18:22:17,868 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7487b45f8/b9caa7a9eca1490d83cef1584472f929 [2024-11-11 18:22:17,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:22:17,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:22:17,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:17,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:22:17,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:22:17,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74966640 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 18:22:17,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:17" (1/1) ... [2024-11-11 18:22:17,905 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:22:18,141 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_1270d.c[4704,4717] [2024-11-11 18:22:18,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:18,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:22:18,198 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_1270d.c[4704,4717] [2024-11-11 18:22:18,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:18,219 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:22:18,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18 WrapperNode [2024-11-11 18:22:18,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:18,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:18,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:22:18,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:22:18,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,273 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2024-11-11 18:22:18,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:18,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:22:18,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:22:18,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:22:18,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,293 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,330 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 18:22:18,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:22:18,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:22:18,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:22:18,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:22:18,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (1/1) ... [2024-11-11 18:22:18,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:18,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:22:18,423 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 18:22:18,428 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 18:22:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:22:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 18:22:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 18:22:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 18:22:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 18:22:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 18:22:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 18:22:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 18:22:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 18:22:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 18:22:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-11 18:22:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-11 18:22:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-11 18:22:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-11 18:22:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-11 18:22:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-11 18:22:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-11 18:22:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-11 18:22:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-11 18:22:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-11 18:22:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 18:22:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 18:22:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-11 18:22:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-11 18:22:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-11 18:22:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-11 18:22:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-11 18:22:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-11 18:22:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-11 18:22:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-11 18:22:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-11 18:22:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-11 18:22:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-11 18:22:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-11 18:22:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-11 18:22:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-11 18:22:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-11 18:22:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-11 18:22:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-11 18:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-11 18:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-11 18:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-11 18:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-11 18:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-11 18:22:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-11 18:22:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-11 18:22:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-11 18:22:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-11 18:22:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-11 18:22:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-11 18:22:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-11 18:22:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-11 18:22:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-11 18:22:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-11 18:22:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:22:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 18:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 18:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-11 18:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-11 18:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-11 18:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-11 18:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-11 18:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-11 18:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-11 18:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-11 18:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-11 18:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-11 18:22:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-11 18:22:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-11 18:22:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-11 18:22:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-11 18:22:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-11 18:22:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 18:22:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-11 18:22:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-11 18:22:18,731 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:22:18,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:22:19,211 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-11 18:22:19,211 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:22:19,228 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:22:19,228 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-11 18:22:19,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:19 BoogieIcfgContainer [2024-11-11 18:22:19,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:22:19,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:22:19,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:22:19,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:22:19,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:22:17" (1/3) ... [2024-11-11 18:22:19,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f3b670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:19, skipping insertion in model container [2024-11-11 18:22:19,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:18" (2/3) ... [2024-11-11 18:22:19,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f3b670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:19, skipping insertion in model container [2024-11-11 18:22:19,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:19" (3/3) ... [2024-11-11 18:22:19,240 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270d.c [2024-11-11 18:22:19,256 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:22:19,257 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:22:19,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:22:19,326 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;@28cf7e75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:22:19,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:22:19,331 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 18:22:19,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-11 18:22:19,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:19,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:19,340 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:19,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:19,345 INFO L85 PathProgramCache]: Analyzing trace with hash -575632410, now seen corresponding path program 1 times [2024-11-11 18:22:19,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:22:19,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889056378] [2024-11-11 18:22:19,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:19,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:22:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:19,517 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 18:22:19,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 18:22:19,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889056378] [2024-11-11 18:22:19,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889056378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:19,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:19,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:22:19,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184461825] [2024-11-11 18:22:19,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:19,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:22:19,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 18:22:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:22:19,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:19,557 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 18:22:19,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:19,602 INFO L93 Difference]: Finished difference Result 190 states and 314 transitions. [2024-11-11 18:22:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:22:19,606 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 18:22:19,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:19,614 INFO L225 Difference]: With dead ends: 190 [2024-11-11 18:22:19,615 INFO L226 Difference]: Without dead ends: 93 [2024-11-11 18:22:19,618 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 18:22:19,622 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 18:22:19,623 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 18:22:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-11 18:22:19,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-11 18:22:19,672 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 18:22:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2024-11-11 18:22:19,680 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 16 [2024-11-11 18:22:19,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:19,681 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2024-11-11 18:22:19,681 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 18:22:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2024-11-11 18:22:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-11 18:22:19,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:19,685 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 18:22:19,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 18:22:19,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:19,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 780916204, now seen corresponding path program 1 times [2024-11-11 18:22:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:22:19,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25407051] [2024-11-11 18:22:19,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:19,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:22:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:22:19,838 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-11 18:22:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:22:19,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-11 18:22:19,961 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-11 18:22:19,964 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:22:19,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 18:22:19,970 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-11 18:22:19,998 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:22:20,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:22:20 BoogieIcfgContainer [2024-11-11 18:22:20,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:22:20,005 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:22:20,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:22:20,005 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:22:20,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:19" (3/4) ... [2024-11-11 18:22:20,009 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-11 18:22:20,010 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:22:20,011 INFO L158 Benchmark]: Toolchain (without parser) took 2139.30ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 117.8MB in the beginning and 147.6MB in the end (delta: -29.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-11 18:22:20,012 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 176.2MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:20,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.02ms. Allocated memory is still 176.2MB. Free memory was 117.6MB in the beginning and 101.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-11 18:22:20,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.02ms. Allocated memory is still 176.2MB. Free memory was 101.5MB in the beginning and 99.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:20,014 INFO L158 Benchmark]: Boogie Preprocessor took 95.15ms. Allocated memory is still 176.2MB. Free memory was 99.4MB in the beginning and 94.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-11 18:22:20,014 INFO L158 Benchmark]: RCFGBuilder took 858.60ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 94.1MB in the beginning and 187.4MB in the end (delta: -93.4MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2024-11-11 18:22:20,017 INFO L158 Benchmark]: TraceAbstraction took 772.08ms. Allocated memory is still 230.7MB. Free memory was 187.4MB in the beginning and 147.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-11 18:22:20,017 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 230.7MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:20,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 176.2MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.02ms. Allocated memory is still 176.2MB. Free memory was 117.6MB in the beginning and 101.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.02ms. Allocated memory is still 176.2MB. Free memory was 101.5MB in the beginning and 99.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.15ms. Allocated memory is still 176.2MB. Free memory was 99.4MB in the beginning and 94.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 858.60ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 94.1MB in the beginning and 187.4MB in the end (delta: -93.4MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * TraceAbstraction took 772.08ms. Allocated memory is still 230.7MB. Free memory was 187.4MB in the beginning and 147.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 230.7MB. Free memory is still 147.6MB. 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 = __VERIFIER_nondet_float(); [L232] float y = -1.0f / 0.0f; [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=6442450972, y=6442450970] [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=6442450972, y=6442450970] [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=6442450972, y=6442450970] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [a=6442450970, b=6442450972, 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=6442450971, b=6442450973, 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=6442450969] [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=6442450969] [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: 0.7s, 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 18:22:20,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1270d.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 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:22:22,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:22:22,386 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-11 18:22:22,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:22:22,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:22:22,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:22:22,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:22:22,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:22:22,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:22:22,431 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:22:22,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:22:22,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:22:22,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:22:22,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:22:22,437 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:22:22,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:22:22,437 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:22:22,438 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:22:22,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:22:22,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:22:22,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:22:22,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:22:22,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:22:22,440 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-11 18:22:22,441 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-11 18:22:22,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:22:22,441 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-11 18:22:22,442 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:22:22,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:22:22,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:22:22,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:22:22,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:22:22,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:22:22,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:22:22,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:22,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:22:22,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:22:22,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:22:22,445 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-11 18:22:22,445 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-11 18:22:22,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:22:22,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:22:22,446 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:22:22,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:22:22,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 [2024-11-11 18:22:22,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:22:22,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:22:22,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:22:22,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:22:22,845 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:22:22,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2024-11-11 18:22:24,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:22:24,698 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:22:24,703 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2024-11-11 18:22:24,715 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ba3d7700/979bf18bbebe4500828c5d1a9161710c/FLAG9649ffd2a [2024-11-11 18:22:24,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ba3d7700/979bf18bbebe4500828c5d1a9161710c [2024-11-11 18:22:24,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:22:24,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:22:24,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:24,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:22:24,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:22:24,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:24" (1/1) ... [2024-11-11 18:22:24,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a5671a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:24, skipping insertion in model container [2024-11-11 18:22:24,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:22:24" (1/1) ... [2024-11-11 18:22:24,778 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:22:25,049 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_1270d.c[4704,4717] [2024-11-11 18:22:25,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:25,072 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:22:25,122 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_1270d.c[4704,4717] [2024-11-11 18:22:25,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:22:25,142 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:22:25,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25 WrapperNode [2024-11-11 18:22:25,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:22:25,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:25,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:22:25,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:22:25,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,205 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2024-11-11 18:22:25,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:22:25,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:22:25,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:22:25,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:22:25,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,249 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 18:22:25,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:22:25,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:22:25,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:22:25,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:22:25,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (1/1) ... [2024-11-11 18:22:25,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:22:25,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:22:25,347 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 18:22:25,350 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 18:22:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:22:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-11 18:22:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-11 18:22:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-11 18:22:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-11 18:22:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-11 18:22:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-11 18:22:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-11 18:22:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-11 18:22:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-11 18:22:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-11 18:22:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-11 18:22:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-11 18:22:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-11 18:22:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-11 18:22:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-11 18:22:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-11 18:22:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-11 18:22:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 18:22:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-11 18:22:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-11 18:22:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-11 18:22:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-11 18:22:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-11 18:22:25,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-11 18:22:25,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-11 18:22:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:22:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-11 18:22:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-11 18:22:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-11 18:22:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-11 18:22:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-11 18:22:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-11 18:22:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-11 18:22:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-11 18:22:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-11 18:22:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-11 18:22:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-11 18:22:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-11 18:22:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-11 18:22:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-11 18:22:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-11 18:22:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-11 18:22:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-11 18:22:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-11 18:22:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-11 18:22:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-11 18:22:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-11 18:22:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-11 18:22:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-11 18:22:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-11 18:22:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-11 18:22:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-11 18:22:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-11 18:22:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-11 18:22:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 18:22:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-11 18:22:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-11 18:22:25,620 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:22:25,622 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:22:27,078 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-11 18:22:27,078 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:22:27,095 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:22:27,096 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-11 18:22:27,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:27 BoogieIcfgContainer [2024-11-11 18:22:27,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:22:27,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:22:27,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:22:27,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:22:27,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:22:24" (1/3) ... [2024-11-11 18:22:27,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405534eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:27, skipping insertion in model container [2024-11-11 18:22:27,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:22:25" (2/3) ... [2024-11-11 18:22:27,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405534eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:22:27, skipping insertion in model container [2024-11-11 18:22:27,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:22:27" (3/3) ... [2024-11-11 18:22:27,105 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270d.c [2024-11-11 18:22:27,123 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:22:27,124 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:22:27,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:22:27,194 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;@6204c266, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:22:27,194 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:22:27,199 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 18:22:27,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-11 18:22:27,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:27,206 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:27,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:27,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:27,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1703390490, now seen corresponding path program 1 times [2024-11-11 18:22:27,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:27,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669080520] [2024-11-11 18:22:27,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:27,230 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 18:22:27,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:27,234 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 18:22:27,236 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 18:22:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:27,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 18:22:27,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:27,492 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 18:22:27,493 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:27,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:27,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669080520] [2024-11-11 18:22:27,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669080520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:27,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:27,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:22:27,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436484250] [2024-11-11 18:22:27,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:27,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:22:27,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:27,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:22:27,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:22:27,538 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 18:22:27,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:27,580 INFO L93 Difference]: Finished difference Result 176 states and 292 transitions. [2024-11-11 18:22:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:22:27,584 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 18:22:27,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:27,594 INFO L225 Difference]: With dead ends: 176 [2024-11-11 18:22:27,595 INFO L226 Difference]: Without dead ends: 86 [2024-11-11 18:22:27,598 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 18:22:27,604 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 18:22:27,606 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 18:22:27,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-11 18:22:27,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-11 18:22:27,653 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 18:22:27,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2024-11-11 18:22:27,657 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 16 [2024-11-11 18:22:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:27,657 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2024-11-11 18:22:27,658 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 18:22:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2024-11-11 18:22:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-11 18:22:27,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:27,659 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 18:22:27,668 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 18:22:27,860 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 18:22:27,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:27,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:27,863 INFO L85 PathProgramCache]: Analyzing trace with hash -384015085, now seen corresponding path program 1 times [2024-11-11 18:22:27,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:27,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773830089] [2024-11-11 18:22:27,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:27,867 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 18:22:27,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:27,869 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 18:22:27,871 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 18:22:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:28,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-11 18:22:28,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:31,564 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 18:22:31,564 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:31,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:31,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773830089] [2024-11-11 18:22:31,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773830089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:31,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:31,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-11 18:22:31,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289770574] [2024-11-11 18:22:31,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:31,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-11 18:22:31,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:31,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-11 18:22:31,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-11 18:22:31,568 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 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 18:22:43,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:22:47,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:22:51,785 WARN L539 Checker$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 18:22:55,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:22:58,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:04,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:08,542 WARN L539 Checker$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 18:23:12,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:16,552 WARN L539 Checker$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 18:23:20,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:24,564 WARN L539 Checker$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 18:23:28,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:32,576 WARN L539 Checker$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 18:23:36,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:40,587 WARN L539 Checker$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 18:23:44,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-11 18:23:48,602 WARN L539 Checker$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 18:23:55,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]