./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:38:06,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:38:06,200 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 21:38:06,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:38:06,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:38:06,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:38:06,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:38:06,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:38:06,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:38:06,257 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:38:06,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:38:06,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:38:06,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:38:06,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:38:06,262 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:38:06,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:38:06,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:38:06,264 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:38:06,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:38:06,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:38:06,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:38:06,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:38:06,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:38:06,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:38:06,267 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:38:06,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:38:06,268 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:38:06,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:38:06,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:38:06,270 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:38:06,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:38:06,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:06,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:38:06,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:38:06,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:38:06,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:38:06,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:38:06,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:38:06,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:38:06,273 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:38:06,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:38:06,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:38:06,274 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2023-11-23 21:38:06,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:38:06,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:38:06,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:38:06,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:38:06,637 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:38:06,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-11-23 21:38:09,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:38:10,096 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:38:10,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-11-23 21:38:10,105 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/data/2ca11df9f/121066720f0f44be9750b13ddb90dbcc/FLAG65c397d1d [2023-11-23 21:38:10,120 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/data/2ca11df9f/121066720f0f44be9750b13ddb90dbcc [2023-11-23 21:38:10,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:38:10,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:38:10,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:10,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:38:10,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:38:10,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5ae737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10, skipping insertion in model container [2023-11-23 21:38:10,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,163 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:38:10,395 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-11-23 21:38:10,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:10,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:38:10,477 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-11-23 21:38:10,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:10,494 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:38:10,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10 WrapperNode [2023-11-23 21:38:10,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:10,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:10,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:38:10,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:38:10,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,559 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2023-11-23 21:38:10,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:10,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:38:10,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:38:10,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:38:10,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,584 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,616 INFO L189 HeapSplitter]: 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] [2023-11-23 21:38:10,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:38:10,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:38:10,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:38:10,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:38:10,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (1/1) ... [2023-11-23 21:38:10,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:10,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:38:10,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:38:10,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:38:10,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:38:10,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:38:10,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:38:10,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 21:38:10,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 21:38:10,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 21:38:10,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 21:38:10,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 21:38:10,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 21:38:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 21:38:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 21:38:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 21:38:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 21:38:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-23 21:38:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-23 21:38:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-23 21:38:10,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-23 21:38:10,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-23 21:38:10,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:38:10,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-23 21:38:10,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-23 21:38:10,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-23 21:38:10,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-23 21:38:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-23 21:38:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-23 21:38:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-23 21:38:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-23 21:38:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-23 21:38:10,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-11-23 21:38:10,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2023-11-23 21:38:10,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2023-11-23 21:38:10,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2023-11-23 21:38:10,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2023-11-23 21:38:10,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2023-11-23 21:38:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2023-11-23 21:38:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2023-11-23 21:38:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:38:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 21:38:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 21:38:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 21:38:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 21:38:10,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 21:38:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 21:38:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 21:38:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 21:38:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 21:38:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 21:38:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 21:38:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-23 21:38:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-23 21:38:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-23 21:38:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-23 21:38:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-23 21:38:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-23 21:38:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-23 21:38:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-23 21:38:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-23 21:38:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-23 21:38:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-23 21:38:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-23 21:38:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-11-23 21:38:10,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-11-23 21:38:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2023-11-23 21:38:10,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2023-11-23 21:38:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2023-11-23 21:38:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2023-11-23 21:38:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2023-11-23 21:38:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2023-11-23 21:38:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2023-11-23 21:38:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2023-11-23 21:38:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:38:10,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:38:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:38:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 21:38:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 21:38:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 21:38:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 21:38:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 21:38:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 21:38:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 21:38:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 21:38:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 21:38:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 21:38:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 21:38:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-23 21:38:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-23 21:38:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-23 21:38:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-23 21:38:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-23 21:38:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:38:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-23 21:38:10,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-23 21:38:11,060 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:38:11,068 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:38:11,566 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:38:11,593 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:38:11,593 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-23 21:38:11,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:11 BoogieIcfgContainer [2023-11-23 21:38:11,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:38:11,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:38:11,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:38:11,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:38:11,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:38:10" (1/3) ... [2023-11-23 21:38:11,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7a85f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:11, skipping insertion in model container [2023-11-23 21:38:11,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:10" (2/3) ... [2023-11-23 21:38:11,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7a85f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:11, skipping insertion in model container [2023-11-23 21:38:11,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:11" (3/3) ... [2023-11-23 21:38:11,604 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2023-11-23 21:38:11,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:38:11,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:38:11,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:38:11,693 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6a6cab45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:38:11,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:38:11,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 85 states have (on average 1.7294117647058824) internal successors, (147), 86 states have internal predecessors, (147), 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) [2023-11-23 21:38:11,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 21:38:11,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:11,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:11,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:38:11,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:11,713 INFO L85 PathProgramCache]: Analyzing trace with hash 104911489, now seen corresponding path program 1 times [2023-11-23 21:38:11,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:11,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547759912] [2023-11-23 21:38:11,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:11,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:11,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:11,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:38:11,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547759912] [2023-11-23 21:38:11,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547759912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:11,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:11,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:11,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769902910] [2023-11-23 21:38:11,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:11,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:38:11,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:38:11,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:38:11,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:38:11,982 INFO L87 Difference]: Start difference. First operand has 90 states, 85 states have (on average 1.7294117647058824) internal successors, (147), 86 states have internal predecessors, (147), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-23 21:38:12,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:12,060 INFO L93 Difference]: Finished difference Result 179 states and 303 transitions. [2023-11-23 21:38:12,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:38:12,063 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2023-11-23 21:38:12,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:12,078 INFO L225 Difference]: With dead ends: 179 [2023-11-23 21:38:12,078 INFO L226 Difference]: Without dead ends: 88 [2023-11-23 21:38:12,093 INFO L412 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 [2023-11-23 21:38:12,097 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:12,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:38:12,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-23 21:38:12,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-23 21:38:12,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.2976190476190477) internal successors, (109), 84 states have internal predecessors, (109), 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) [2023-11-23 21:38:12,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 113 transitions. [2023-11-23 21:38:12,169 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 113 transitions. Word has length 14 [2023-11-23 21:38:12,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:12,169 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 113 transitions. [2023-11-23 21:38:12,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-23 21:38:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 113 transitions. [2023-11-23 21:38:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:38:12,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:12,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:12,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:38:12,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:38:12,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:12,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1553430405, now seen corresponding path program 1 times [2023-11-23 21:38:12,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:38:12,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550938408] [2023-11-23 21:38:12,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:12,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:38:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:38:12,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:38:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:38:12,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:38:12,451 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:38:12,453 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:38:12,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:38:12,463 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 21:38:12,468 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:38:12,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:38:12 BoogieIcfgContainer [2023-11-23 21:38:12,530 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:38:12,531 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:38:12,531 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:38:12,532 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:38:12,532 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:11" (3/4) ... [2023-11-23 21:38:12,536 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:38:12,537 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:38:12,539 INFO L158 Benchmark]: Toolchain (without parser) took 2413.69ms. Allocated memory is still 161.5MB. Free memory was 123.3MB in the beginning and 74.3MB in the end (delta: 49.0MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2023-11-23 21:38:12,540 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:38:12,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.20ms. Allocated memory is still 161.5MB. Free memory was 122.7MB in the beginning and 108.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:38:12,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.89ms. Allocated memory is still 161.5MB. Free memory was 108.8MB in the beginning and 106.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:38:12,546 INFO L158 Benchmark]: Boogie Preprocessor took 130.36ms. Allocated memory is still 161.5MB. Free memory was 106.6MB in the beginning and 101.7MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:38:12,550 INFO L158 Benchmark]: RCFGBuilder took 896.84ms. Allocated memory is still 161.5MB. Free memory was 101.7MB in the beginning and 112.4MB in the end (delta: -10.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-11-23 21:38:12,551 INFO L158 Benchmark]: TraceAbstraction took 933.45ms. Allocated memory is still 161.5MB. Free memory was 112.1MB in the beginning and 74.6MB in the end (delta: 37.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-23 21:38:12,551 INFO L158 Benchmark]: Witness Printer took 6.59ms. Allocated memory is still 161.5MB. Free memory was 74.6MB in the beginning and 74.3MB in the end (delta: 341.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:38:12,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 107.0MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.20ms. Allocated memory is still 161.5MB. Free memory was 122.7MB in the beginning and 108.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.89ms. Allocated memory is still 161.5MB. Free memory was 108.8MB in the beginning and 106.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.36ms. Allocated memory is still 161.5MB. Free memory was 106.6MB in the beginning and 101.7MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 896.84ms. Allocated memory is still 161.5MB. Free memory was 101.7MB in the beginning and 112.4MB in the end (delta: -10.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 933.45ms. Allocated memory is still 161.5MB. Free memory was 112.1MB in the beginning and 74.6MB in the end (delta: 37.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 6.59ms. Allocated memory is still 161.5MB. Free memory was 74.6MB in the beginning and 74.3MB in the end (delta: 341.1kB). 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; [L231] float x = 1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L233] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=251658243, \old(y)=251658244, a=251658243, b=251658244, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [L88] ieee_float_shape_type gf_u; [L89] EXPR gf_u.value = (x) [L90] EXPR gf_u.word [L90] EXPR (ha) = gf_u.word [L87-L91] { ieee_float_shape_type gf_u; gf_u.value = (x); (ha) = gf_u.word; } VAL [\old(x)=251658243, \old(y)=251658244, a=251658243, b=251658244, ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [L92] ha &= 0x7fffffffL VAL [\old(x)=251658243, \old(y)=251658244, a=251658243, b=251658244, ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [L94] ieee_float_shape_type gf_u; [L95] EXPR gf_u.value = (y) [L96] EXPR gf_u.word [L96] EXPR (hb) = gf_u.word [L93-L97] { ieee_float_shape_type gf_u; gf_u.value = (y); (hb) = gf_u.word; } VAL [\old(x)=251658243, \old(y)=251658244, a=251658243, b=251658244, ha=0, hb=-1895825407, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [L98] hb &= 0x7fffffffL VAL [\old(x)=251658243, \old(y)=251658244, a=251658243, b=251658244, ha=0, hb=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=251658243, \old(y)=251658244, a=251658244, b=251658243, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [L110] ieee_float_shape_type sf_u; [L111] EXPR sf_u.word = (ha) [L112] EXPR sf_u.value [L112] EXPR (a) = sf_u.value [L109-L113] { ieee_float_shape_type sf_u; sf_u.word = (ha); (a) = sf_u.value; } VAL [\old(x)=251658243, \old(y)=251658244, a=251658246, b=251658243, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [L115] ieee_float_shape_type sf_u; [L116] EXPR sf_u.word = (hb) [L117] EXPR sf_u.value [L117] EXPR (b) = sf_u.value [L114-L118] { ieee_float_shape_type sf_u; sf_u.word = (hb); (b) = sf_u.value; } VAL [\old(x)=251658243, \old(y)=251658244, a=251658246, b=251658245, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=251658243, \old(y)=251658244, a=251658246, b=251658245, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] [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 [\old(x)=251658242, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658242] [L216] ieee_float_shape_type gf_u; [L217] EXPR gf_u.value = (x) [L218] EXPR gf_u.word [L218] EXPR (ix) = gf_u.word [L215-L219] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=251658242, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=251658242] [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L235] RET, EXPR isinf_float(res) [L235] COND TRUE !isinf_float(res) [L236] reach_error() VAL [one_sqrt=1, res=251658242, tiny_sqrt=1/1000000000000000000000000000000, x=251658243, y=251658244] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 111 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 111 mSDtfsCounter, 4 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=90occurred 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, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 [2023-11-23 21:38:12,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:38:15,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:38:15,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 21:38:15,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:38:15,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:38:15,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:38:15,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:38:15,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:38:15,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:38:15,565 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:38:15,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:38:15,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:38:15,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:38:15,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:38:15,570 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:38:15,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:38:15,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:38:15,571 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:38:15,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:38:15,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:38:15,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:38:15,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:38:15,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:38:15,574 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:38:15,575 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:38:15,575 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:38:15,576 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:38:15,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:38:15,577 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:38:15,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:38:15,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:38:15,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:38:15,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:38:15,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:15,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:38:15,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:38:15,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:38:15,582 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 21:38:15,582 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:38:15,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:38:15,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:38:15,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:38:15,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:38:15,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:38:15,583 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 21:38:15,584 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2023-11-23 21:38:16,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:38:16,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:38:16,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:38:16,034 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:38:16,035 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:38:16,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-11-23 21:38:19,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:38:19,977 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:38:19,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-11-23 21:38:19,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/data/d5b84e064/0700a91972004e1daff67d67f2d9e7ba/FLAG943f45f5f [2023-11-23 21:38:20,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/data/d5b84e064/0700a91972004e1daff67d67f2d9e7ba [2023-11-23 21:38:20,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:38:20,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:38:20,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:20,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:38:20,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:38:20,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451ba85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20, skipping insertion in model container [2023-11-23 21:38:20,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,315 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:38:20,540 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-11-23 21:38:20,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:20,560 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:38:20,635 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-11-23 21:38:20,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:38:20,656 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:38:20,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20 WrapperNode [2023-11-23 21:38:20,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:38:20,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:20,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:38:20,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:38:20,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,722 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2023-11-23 21:38:20,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:38:20,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:38:20,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:38:20,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:38:20,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,749 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,789 INFO L189 HeapSplitter]: 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] [2023-11-23 21:38:20,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:38:20,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:38:20,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:38:20,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:38:20,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (1/1) ... [2023-11-23 21:38:20,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:38:20,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:38:20,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:38:20,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:38:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:38:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 21:38:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-23 21:38:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-23 21:38:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-23 21:38:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-23 21:38:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-23 21:38:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-23 21:38:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-23 21:38:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-11-23 21:38:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-11-23 21:38:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-11-23 21:38:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-11-23 21:38:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-11-23 21:38:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-11-23 21:38:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-11-23 21:38:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-11-23 21:38:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-11-23 21:38:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:38:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-23 21:38:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-23 21:38:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-23 21:38:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-23 21:38:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-11-23 21:38:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-11-23 21:38:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-11-23 21:38:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-11-23 21:38:20,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-11-23 21:38:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2023-11-23 21:38:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2023-11-23 21:38:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2023-11-23 21:38:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2023-11-23 21:38:20,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2023-11-23 21:38:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2023-11-23 21:38:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2023-11-23 21:38:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2023-11-23 21:38:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-23 21:38:20,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-23 21:38:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-23 21:38:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-23 21:38:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-23 21:38:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-23 21:38:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-23 21:38:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-23 21:38:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-11-23 21:38:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-11-23 21:38:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-11-23 21:38:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-11-23 21:38:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-11-23 21:38:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-11-23 21:38:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-11-23 21:38:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2023-11-23 21:38:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2023-11-23 21:38:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:38:21,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:38:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-23 21:38:21,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-23 21:38:21,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-23 21:38:21,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-23 21:38:21,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-11-23 21:38:21,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-11-23 21:38:21,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-11-23 21:38:21,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-11-23 21:38:21,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-11-23 21:38:21,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2023-11-23 21:38:21,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2023-11-23 21:38:21,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2023-11-23 21:38:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2023-11-23 21:38:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2023-11-23 21:38:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2023-11-23 21:38:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2023-11-23 21:38:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2023-11-23 21:38:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-23 21:38:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-23 21:38:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-23 21:38:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-23 21:38:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-23 21:38:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-23 21:38:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-23 21:38:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-23 21:38:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-11-23 21:38:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-11-23 21:38:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-11-23 21:38:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-11-23 21:38:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-11-23 21:38:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-11-23 21:38:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2023-11-23 21:38:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2023-11-23 21:38:21,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2023-11-23 21:38:21,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:38:21,066 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-23 21:38:21,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-23 21:38:21,310 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:38:21,313 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:38:24,026 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:38:24,071 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:38:24,071 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-23 21:38:24,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:24 BoogieIcfgContainer [2023-11-23 21:38:24,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:38:24,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:38:24,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:38:24,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:38:24,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:38:20" (1/3) ... [2023-11-23 21:38:24,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47068e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:24, skipping insertion in model container [2023-11-23 21:38:24,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:38:20" (2/3) ... [2023-11-23 21:38:24,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47068e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:38:24, skipping insertion in model container [2023-11-23 21:38:24,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:38:24" (3/3) ... [2023-11-23 21:38:24,085 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270a.c [2023-11-23 21:38:24,108 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:38:24,109 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:38:24,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:38:24,192 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@39fd339a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:38:24,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:38:24,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 80 states have (on average 1.725) internal successors, (138), 81 states have internal predecessors, (138), 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) [2023-11-23 21:38:24,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 21:38:24,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:24,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:24,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:38:24,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:24,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1194043807, now seen corresponding path program 1 times [2023-11-23 21:38:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:38:24,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349467007] [2023-11-23 21:38:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:24,231 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 [2023-11-23 21:38:24,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:38:24,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:38:24,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:38:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:24,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:38:24,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:24,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:38:24,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:38:24,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349467007] [2023-11-23 21:38:24,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349467007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:24,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:24,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:38:24,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800853853] [2023-11-23 21:38:24,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:24,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:38:24,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:38:24,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:38:24,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:38:24,557 INFO L87 Difference]: Start difference. First operand has 85 states, 80 states have (on average 1.725) internal successors, (138), 81 states have internal predecessors, (138), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-23 21:38:24,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:24,614 INFO L93 Difference]: Finished difference Result 169 states and 285 transitions. [2023-11-23 21:38:24,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:38:24,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2023-11-23 21:38:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:24,626 INFO L225 Difference]: With dead ends: 169 [2023-11-23 21:38:24,626 INFO L226 Difference]: Without dead ends: 83 [2023-11-23 21:38:24,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:38:24,634 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:24,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:38:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-23 21:38:24,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-23 21:38:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 79 states have internal predecessors, (101), 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) [2023-11-23 21:38:24,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 105 transitions. [2023-11-23 21:38:24,685 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 105 transitions. Word has length 14 [2023-11-23 21:38:24,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:24,686 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 105 transitions. [2023-11-23 21:38:24,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2023-11-23 21:38:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 105 transitions. [2023-11-23 21:38:24,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:38:24,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:24,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:24,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:38:24,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:38:24,889 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:38:24,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:24,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1437365582, now seen corresponding path program 1 times [2023-11-23 21:38:24,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:38:24,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948302755] [2023-11-23 21:38:24,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:24,891 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 [2023-11-23 21:38:24,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:38:24,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:38:24,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:38:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:25,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 21:38:25,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:25,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 21:38:25,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-11-23 21:38:25,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:25,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:38:25,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:38:25,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948302755] [2023-11-23 21:38:25,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948302755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:25,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:25,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:38:25,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790251381] [2023-11-23 21:38:25,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:25,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:38:25,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:38:25,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:38:25,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:38:25,808 INFO L87 Difference]: Start difference. First operand 83 states and 105 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-11-23 21:38:29,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:38:31,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:38:33,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:38:35,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:38:37,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:38:39,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:38:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:38:39,886 INFO L93 Difference]: Finished difference Result 179 states and 228 transitions. [2023-11-23 21:38:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:38:39,929 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2023-11-23 21:38:39,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:38:39,933 INFO L225 Difference]: With dead ends: 179 [2023-11-23 21:38:39,933 INFO L226 Difference]: Without dead ends: 112 [2023-11-23 21:38:39,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:38:39,936 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 122 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:38:39,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 339 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 6 Unknown, 0 Unchecked, 13.7s Time] [2023-11-23 21:38:39,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-23 21:38:39,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2023-11-23 21:38:39,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.247191011235955) internal successors, (111), 89 states have internal predecessors, (111), 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) [2023-11-23 21:38:39,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 115 transitions. [2023-11-23 21:38:39,960 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 115 transitions. Word has length 19 [2023-11-23 21:38:39,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:38:39,961 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 115 transitions. [2023-11-23 21:38:39,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2023-11-23 21:38:39,962 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2023-11-23 21:38:39,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:38:39,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:38:39,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:38:39,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:38:40,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 21:38:40,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:38:40,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:38:40,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1695531020, now seen corresponding path program 1 times [2023-11-23 21:38:40,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 21:38:40,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48791563] [2023-11-23 21:38:40,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:38:40,166 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 [2023-11-23 21:38:40,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 21:38:40,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 21:38:40,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e1eeff4-ce5d-46e6-8d25-7ac59802b3d7/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:38:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:38:40,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 21:38:40,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:38:40,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 21:38:40,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-11-23 21:38:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:38:43,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:38:43,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 21:38:43,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48791563] [2023-11-23 21:38:43,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48791563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:38:43,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:38:43,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 21:38:43,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273621483] [2023-11-23 21:38:43,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:38:43,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 21:38:43,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 21:38:43,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 21:38:43,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:38:43,551 INFO L87 Difference]: Start difference. First operand 93 states and 115 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 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) [2023-11-23 21:38:54,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:38:56,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:38:58,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:39:00,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:39:02,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:39:04,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:39:06,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:39:08,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []